1
|
Varlet T, Portmann S, Fürstner A. Total Synthesis of Njaoamine C by Concurrent Macrocycle Formation. J Am Chem Soc 2023; 145:21197-21202. [PMID: 37734001 PMCID: PMC10557140 DOI: 10.1021/jacs.3c08410] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Indexed: 09/23/2023]
Abstract
In conceptual terms, the first total synthesis of the cytotoxic marine natural product njaoamine C differs from all known approaches toward related alkaloids of the manzamine superfamily in that both macrocyclic rings enveloping the diazatricyclic core are concomitantly formed; this goal was reached by double ring closing alkyne metathesis (dRCAM). The success of this maneuver does not merely reflect a favorable preorientation of the four alkyne chains that need to be concatenated in the proper pairwise manner but is also the outcome of dynamic covalent chemistry involving error correction by the chosen "canopy" molybdenum alkylidyne catalyst. The end game downstream of dRCAM capitalizes on the striking chemoselectivity of palladium-catalyzed hydrostannation, which selects for (hetero)arylalkynes even in the presence of sterically much more accessible dialkylalkynes or alkenes; for this preference, the method complements the classical repertoire of hydrometalation and semireduction reactions.
Collapse
Affiliation(s)
- Thomas Varlet
- Max-Planck-Institut für
Kohlenforschung, 45470 Mülheim/Ruhr, Germany
| | - Sören Portmann
- Max-Planck-Institut für
Kohlenforschung, 45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für
Kohlenforschung, 45470 Mülheim/Ruhr, Germany
| |
Collapse
|
2
|
Pan X, Talavera M, Braun T. Efficient hydrostannation of fluorinated alkenes. J Fluor Chem 2023. [DOI: 10.1016/j.jfluchem.2023.110116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
|
3
|
Wang C, Wu J, Yan B, Ni C, Ma X, Yang Z. N
‐coordinated Aluminum Complexes Catalyze the Hydrostannation of Alkynes. ChemistrySelect 2023. [DOI: 10.1002/slct.202204405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Chengzhi Wang
- School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Jin Wu
- Xi'an Aerospace Propulsion Test Technique Institute Xi'an 710100 P. R. China
| | - Ben Yan
- School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Congjian Ni
- School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Xiaoli Ma
- School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Zhi Yang
- School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| |
Collapse
|
4
|
Huo LQ, Shi LL, Fu J. Iron‐Copper Dual‐Catalysis Boosted C‐Based Bond‐Forming Reactions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lu-Qiong Huo
- The Chinese University of Hong Kong - Shenzhen School of Science and Engineering Longgang District 518055 Shenzhen CHINA
| | - Li-Li Shi
- Peking University Shenzhen Graduate School State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics Shenzhen University TownLishui RoadXili TownNanshan District 518055 Shenzhen CHINA
| | - Junkai Fu
- Northeast Normal University Department of Chemistry Renmin Street, 5268Nanguan district 130024 Changchun CHINA
| |
Collapse
|
5
|
Lai YH, Chang WC, Chen KT, Wu DH, Li HJ, Shen LC, Kuo TS, Liu HJ. Isolable Tin(II) Hydrides Featuring Sterically Undemanding Pincer-Type Ligands and Their Dehydrogenative Sn-Sn Bond Forming Reactions to Distannynes Promoted by Lewis Acidic Tri- sec-butylborane. Inorg Chem 2022; 61:6026-6036. [PMID: 35394279 DOI: 10.1021/acs.inorgchem.1c04019] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unlike isolable tin(II) hydrides supported by bulky ligands reported in the literature, this research describes the synthesis and characterization of thermally stable tin(II) hydrides LPhSnH (1-H) and MeLSnH (2-H) stabilized by sterically undemanding N,N,N-coordinating pincer-type ligands (LPh = 2,5-dipyridyl-3,4-diphenylpyrrolato; MeL = 2,5-bis(6-methylpyridyl)pyrrolato). The results from previous reports reveal that attempts to access tin(II) hydrides containing less-bulky ligands have had limited success, and decomposition to tin(I) distannynes often occurs. The key to the successful isolation of 1-H and 2-H is the identification of the role of Lewis acidic BsBu3, generated upon delivering hydride from commonly used hydride reagents M[BsBu3H] ("selectrides", M = Li or K). This study details compelling experimental evidence and theoretical results of the role played by BsBu3, which catalyzes the dehydrocoupling reactions of 1-H and 2-H to yield tin(I) distannynes LPhSn-SnLPh (12) and MeLSn-SnMeL (22) with the liberation of H2. To avoid the interference of BsBu3, 1-H and 2-H can be isolated in pure forms using pinacolborane as the hydride donor with LPhSnOMe (1-OMe) and MeLSnOMe (2-OMe) as reactants, respectively. DFT calculations and experimental observations indicate that the coordination of the Sn-H bond of 1-H to BsBu3 leaves an electrophilic tin center, rendering the nucleophilic attack by the second equivalent of 1-H forming a Sn-Sn bond.
Collapse
Affiliation(s)
- Yu-Hua Lai
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan
| | - Wei-Chieh Chang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan
| | - Kuan-Ting Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan
| | - Ding-Hong Wu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan
| | - Han-Jung Li
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, 195, Section 4, Chung Hsing Road, Chutung, Hsinchu 31040, Taiwan
| | - Li-Ching Shen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan
| | - Ting-Shen Kuo
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Hsueh-Ju Liu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, 1001 Daxue Road, East District, Hsinchu City 30010, Taiwan.,Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| |
Collapse
|
6
|
Li S, Lian C, Yue G, Zhang J, Qiu D, Mo F. Transition Metal Free Stannylation of Alkyl Halides: The Rapid Synthesis of Alkyltrimethylstannanes. J Org Chem 2022; 87:4291-4297. [PMID: 35258313 DOI: 10.1021/acs.joc.1c03135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A transition metal free stannylation reaction of alkyl bromides and iodides with hexamethyldistannane has been developed. This protocol is operationally convenient and features a rapid reaction and good functional group tolerance. A wide range of functionalized primary and secondary alkyl and benzyl trimethyl stannanes are prepared in moderate to excellent yields. The success of the gram-scale procedure and tandem Stille coupling reaction has allowed this protocol to demonstrate potential for application in organic synthesis. Both experimental and theoretical studies reveal the mechanistic details of this stannylation reaction.
Collapse
Affiliation(s)
- Songyi Li
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Chang Lian
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Guanglu Yue
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Jianning Zhang
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Di Qiu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Fanyang Mo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| |
Collapse
|
7
|
Balas L, Dey SK, Béraud-Dufour S, Riechers DE, Landau OA, Bertrand-Michel J, Durand T, Blondeau N. Linotrins: Omega-3 oxylipins featuring an E,Z,E conjugated triene motif are present in the plant kingdom and alleviate inflammation in LPS-challenged microglial cells. Eur J Med Chem 2022; 231:114157. [DOI: 10.1016/j.ejmech.2022.114157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/18/2022] [Accepted: 01/24/2022] [Indexed: 11/04/2022]
|
8
|
Marciniec B, Pietraszuk C, Pawluć P, Maciejewski H. Inorganometallics (Transition Metal-Metalloid Complexes) and Catalysis. Chem Rev 2021; 122:3996-4090. [PMID: 34967210 PMCID: PMC8832401 DOI: 10.1021/acs.chemrev.1c00417] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
While the formation
and breaking of transition metal (TM)–carbon
bonds plays a pivotal role in the catalysis of organic compounds,
the reactivity of inorganometallic species, that is, those involving
the transition metal (TM)–metalloid (E) bond, is of key importance
in most conversions of metalloid derivatives catalyzed by TM complexes.
This Review presents the background of inorganometallic catalysis
and its development over the last 15 years. The results of mechanistic
studies presented in the Review are related to the occurrence of TM–E
and TM–H compounds as reactive intermediates in the catalytic
transformations of selected metalloids (E = B, Si, Ge, Sn, As, Sb,
or Te). The Review illustrates the significance of inorganometallics
in catalysis of the following processes: addition of metalloid–hydrogen
and metalloid–metalloid bonds to unsaturated compounds; activation
and functionalization of C–H bonds and C–X bonds with
hydrometalloids and bismetalloids; activation and functionalization
of C–H bonds with vinylmetalloids, metalloid halides, and sulfonates;
and dehydrocoupling of hydrometalloids. This first Review on inorganometallic
catalysis sums up the developments in the catalytic methods for the
synthesis of organometalloid compounds and their applications in advanced
organic synthesis as a part of tandem reactions.
Collapse
Affiliation(s)
- Bogdan Marciniec
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Cezary Pietraszuk
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Piotr Pawluć
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Hieronim Maciejewski
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| |
Collapse
|
9
|
Loup J, Larin EM, Lautens M. Iron-Catalyzed Reductive Cyclization by Hydromagnesiation: A Modular Strategy Towards N-Heterocycles. Angew Chem Int Ed Engl 2021; 60:22345-22351. [PMID: 34409717 DOI: 10.1002/anie.202106996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/29/2021] [Indexed: 12/15/2022]
Abstract
A reductive cyclization to prepare a variety of N-heterocycles, through the use of ortho-vinylanilides, is reported. The reaction is catalyzed by an inexpensive and bench-stable iron complex and generally occurs at ambient temperature. The transformation likely proceeds through hydromagnesiation of the vinyl group, and trapping of the in situ generated benzylic anion by an intramolecular electrophile to form the heterocycle. This iron-catalyzed strategy was shown to be broadly applicable and was utilized in the synthesis of substituted indoles, oxindoles and tetrahydrobenzoazepinoindolone derivatives. Mechanistic studies indicated that the reversibility of the hydride transfer step depends on the reactivity of the tethered electrophile. The synthetic utility of our approach was further demonstrated by the formal synthesis of a reported bioactive compound and a family of natural products.
Collapse
Affiliation(s)
- Joachim Loup
- Davenport Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S 3H6, Canada
| | - Egor M Larin
- Davenport Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S 3H6, Canada
| | - Mark Lautens
- Davenport Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S 3H6, Canada
| |
Collapse
|
10
|
Iron‐Catalyzed Reductive Cyclization by Hydromagnesiation: A Modular Strategy Towards
N
‐Heterocycles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
11
|
Li Y, Zhou M, Park S, Dang L. Comparative DFT Study on Dehydrogenative C(sp)-H Elementation (E = Si, Ge, and Sn) of Terminal Alkynes Catalyzed by a Cationic Ruthenium(II) Thiolate Complex. Inorg Chem 2021; 60:6228-6238. [PMID: 33852282 DOI: 10.1021/acs.inorgchem.0c03695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Described herein is a comparative theoretical study of dehydrogenative C(sp)-H functionalizations of a terminal alkyne with group-14-based hydrides (HEEt3; E = Si, Ge, Sn) catalyzed by an Ohki-Tatsumi complex-a cationic Ru(II) complex with a tethered thiolate ligand ([Ru-S] = [(DmpS)Ru(PiPr3)][BAr4F]; Dmp = 2,6-(dimesityl)2C6H3; ArF = 3,5-(CF3)2C6H3). The calculations indicate that the energy barriers for heterolytic cleavage of the H-EEt3 bonds at the Ru-S sites of the Ohki-Tatsumi complex highly vary depending on the group 14 elements from 3.8 kcal/mol (E = Sn) to 10.5 kcal/mol (E = Ge) and 18.5 kcal/mol (E = Si), where Ru and S elements cooperatively serve as the Lewis acid and base, respectively. Likewise, the transfer of the group 14 cation (Et3E+) to the C-C triple bond to generate the β-element-stabilized vinyl cations-the rate-determining step (RDS) of the overall reaction-is predicted to be susceptible to the element's identity [Ea = 36.8 for Sn < 42.9 and Ge < 50.7 for Si (kcal/mol)]. The key transition states involved in the RDS are compared in terms of energy and structure within each system of the group 14 hydrides. The distortion/interaction-activation strain (DIAS) model analysis of the transition states responsible for dehydrogenative stannylation and hydrostannation of a terminal alkyne sheds light on the origin of the experimentally observed kinetic preference toward dehydrogenative C-H stannylation over hydrostannation.
Collapse
Affiliation(s)
- Yahui Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Miaomiao Zhou
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Sehoon Park
- Department of Chemistry, Guangdong Technion Israel Institute of Technology, Shantou, Guangdong 515063, China.,Technion-Israel Institute of Technology, Technion City, 32000 Haifa, Israel
| | - Li Dang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| |
Collapse
|
12
|
Sakamoto K, Nagashima Y, Wang C, Miyamoto K, Tanaka K, Uchiyama M. Illuminating Stannylation. J Am Chem Soc 2021; 143:5629-5635. [PMID: 33769051 DOI: 10.1021/jacs.1c00887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We have developed photoboosted stannylation reactions of terminal alkynes (linear-selective hydrostannylation) and fluoroarenes (defluorostannylation), in which the stannyl anion is photoexcited to an excited triplet (T1) stannyl diradical species. This unprecedented T1-stannyl diradical species shows completely different reactivity and selectivity from those of stannyl anions and stannyl radicals. This methodology is operationally simple, has broad functional group tolerance, and proceeds in high yield without the need for any catalyst.
Collapse
Affiliation(s)
- Kyoka Sakamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuki Nagashima
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Chao Wang
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,Research Initiative for Supra-Materials (RISM), Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
| |
Collapse
|
13
|
Sugawara A, Takada H, Hirose T, Kimishima A, Yamada T, Toda M, Kojima T, Matsumaru T, Sunazuka T. Pd-catalyzed Regio- and Stereoselective Hydrostannylation of an Alkyl Ethynyl Ether/One-Pot Stille Coupling Enables the Synthesis of 14-Membered Macrolactone of Luminamicin. Org Lett 2021; 23:1758-1763. [PMID: 33591766 DOI: 10.1021/acs.orglett.1c00183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Regio- and stereoselective hydrostannylation of alkyl ethynyl ethers generates alkenyl ethers, which are useful building blocks in organic synthesis. This efficient synthetic method, however, is limited. Here, we report not only an efficient method for a highly regio- and stereoselective Pd-catalyzed hydrostannylation of alkyl ethynyl ethers but also a scalable synthesis and construction of the core framework of luminamicin possessing all functional groups and stereocenters.
Collapse
Affiliation(s)
- Akihiro Sugawara
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hirokazu Takada
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Tomoyasu Hirose
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Aoi Kimishima
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Takeshi Yamada
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masaki Toda
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Toru Kojima
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Takanori Matsumaru
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Toshiaki Sunazuka
- Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| |
Collapse
|
14
|
De R, Savarimuthu SA, Chandra S, Bera MK. Direct conversion of secondary propargyl alcohols into 1,3-di-arylpropanone via DBU promoted redox isomerization and palladium assisted chemoselective hydrogenation in a single pot operation. NEW J CHEM 2021. [DOI: 10.1039/d1nj02972j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Palladium(ii)acetate is found to be an efficient catalyst for the single-step conversion of secondary propargyl alcohols to 1,3-diarylpropanone derivatives under mild basic conditions.
Collapse
Affiliation(s)
- Rimpa De
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur P.O. – Botanic Garden, Howrah-711 103, WB, India
| | - S. Antony Savarimuthu
- Department of Chemistry, St. Xavier's College (Autonomous), Palayamkottai, Tamil Nadu-627 002, India
| | - Shubhadeep Chandra
- Institute of Inorganic Chemistry, Universitat Stuttgart, Pfaffenwaldring 55, D-, 70569, Stuttgart, Germany
| | - Mrinal K. Bera
- Department of Chemistry, Indian Institute of Engineering Science and Technology (IIEST), Shibpur P.O. – Botanic Garden, Howrah-711 103, WB, India
| |
Collapse
|
15
|
Liu J, Song H, Wang T, Jia J, Tong QX, Tung CH, Wang W. Iron-Catalyzed Regiodivergent Hydrostannation of Alkynes: Intermediacy of Fe(IV)-H versus Fe(II)-Vinylidene. J Am Chem Soc 2020; 143:409-419. [PMID: 33371677 DOI: 10.1021/jacs.0c11448] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report an iron system, Cp*Fe(1,2-R2PC6H4X), which controls the Markovnikov and anti-Markovnikov hydrostannation of alkynes by tuning the ionic metal-heteroatom bonds (Fe-X) reactivity. The sequential addition of nBu3SnH to the iron-amido catalyst (1, X = HN-, R = Ph) affords a distannyl Fe(IV)-H species responsible for syn-addition of the Sn-H bond across the C≡C bond to produce branched α-vinylstannanes. Activation of the C(sp)-H bond of alkynes by an iron-aryloxide catalyst (2, X = O-, R = Cy) affords an iron(II) vinylidene intermediate, allowing for gem-addition of the Sn-H to the terminal-carbon producing β-vinylstannanes. These catalytic reactions exhibit excellent regioselectivity and broad functional group compatibility and enable the large-scale synthesis of diverse vinylstannanes. Many new reactions have been established based on such a synthetic Fe-X platform to demonstrate that the initial step of the catalysis is conveniently controlled by the activation of either the tin hydride or the alkyne substrate.
Collapse
Affiliation(s)
- Jianguo Liu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Heng Song
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Tianlin Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jiong Jia
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Qing-Xiao Tong
- Department of Chemistry, Shantou University, Shantou 515063, China
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Wenguang Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.,College of Chemistry, Beijing Normal University, Beijing 100875, China
| |
Collapse
|
16
|
MacMillan JWM, Marczenko KM, Johnson ER, Chitnis SS. Hydrostibination of Alkynes: A Radical Mechanism*. Chemistry 2020; 26:17134-17142. [PMID: 32706129 DOI: 10.1002/chem.202003153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Indexed: 11/09/2022]
Abstract
The addition of Sb-H bonds to alkynes was reported recently as a new hydroelementation reaction that exclusively yields anti-Markovnikov Z-olefins from terminal acetylenes. We examine four possible mechanisms that are consistent with the observed stereochemical and regiochemical outcomes. A comprehensive analysis of solvent, substituent, isotope, additive, and temperature effects on hydrostibination reaction rates definitively refutes three ionic mechanisms involving closed-shell charged intermediates. Instead the data support a fourth pathway featuring open-shell neutral intermediates. Density-functional theory (DFT) calculations are consistent with this model, predicting an activation barrier that is in agreement with the experimental value (Eyring analysis) and a rate limiting step that is congruent with the experimental kinetic isotope effect. We therefore conclude that hydrostibination of arylacetylenes is initiated by the generation of stibinyl radicals, which then participate in a cycle featuring SbII and SbIII intermediates to yield the observed Z-olefins as products. This mechanistic understanding will enable rational evolution of hydrostibination as a synthetic methodology.
Collapse
Affiliation(s)
- Joshua W M MacMillan
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, B3H 4R2, Halifax, Canada
| | - Katherine M Marczenko
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, B3H 4R2, Halifax, Canada
| | - Erin R Johnson
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, B3H 4R2, Halifax, Canada
| | - Saurabh S Chitnis
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, B3H 4R2, Halifax, Canada
| |
Collapse
|
17
|
Rivas A, Areal A, Mora P, Álvarez R, de Lera AR. Synthesis of Symmetrical and Nonsymmetrical Polyenes by Iterative and Bidirectional Palladium-Catalyzed Cross-Coupling Reactions. Chemistry 2020; 26:13543-13567. [PMID: 32267574 DOI: 10.1002/chem.202000624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/08/2020] [Indexed: 11/06/2022]
Abstract
Bifunctional unsaturated reagents designed to undergo palladium-catalyzed cross-coupling reactions with complementary polyenyl connective fragments are highly useful for the undoubtedly challenging synthesis of polyenes. The current toolkit of building blocks for the bidirectional formation of Csp2 -Csp2 single bonds of polyenes includes homo-bisfunctionalized reagents with equal or unequal reactivity (due to steric and/or electronic factors), and hetero-bisfunctionalized counterparts containing either two different nucleophiles, two electrophiles or one of these functionalities and a latent nucleophile that can be unmasked when desired. The combination of these bifunctional linchpin reagents using tactics that modulate the reactivity of each terminus in order to achieve the required connection have streamlined the synthesis of polyenes of great complexity using (iterative) cross-coupling methods for Csp2 -Csp2 bond formation. Reaction conditions for the Pd-catalyzed cross-coupling reactions are mild and functional-group-tolerant, and therefore these protocols allow to construct the polyene structures using shorter unsaturated reactants with the desired geometries, since in general the products preserve the stereochemical information of the connected cross-coupling partners.
Collapse
Affiliation(s)
- Aurea Rivas
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Andrea Areal
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Paula Mora
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Rosana Álvarez
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Angel R de Lera
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| |
Collapse
|
18
|
Coste SC, Pearson TJ, Altman AB, Klein RA, Finney BA, Hu MY, Alp EE, Vlaisavljevich B, Freedman DE. Orbital energy mismatch engenders high-spin ground states in heterobimetallic complexes. Chem Sci 2020; 11:9971-9977. [PMID: 34094259 PMCID: PMC8162423 DOI: 10.1039/d0sc03777j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The spin state in heterobimetallic complexes heavily influences both reactivity and magnetism. Exerting control over spin states in main group-based heterobimetallics requires a different approach as the orbital interactions can differ substantially from that of classic coordination complexes. By deliberately engendering an energetic mismatch within the two metals in a bimetallic complex we can mimic the electronic structure of lanthanides. Towards this end, we report a new family of complexes, [Ph,MeTpMSnPh3] where M = Mn (3), Fe (4), Co (5), Ni (6), Zn (7), featuring unsupported bonding between a transition metal and Sn which represent an unusual high spin electronic structure. Analysis of the frontier orbitals reveal the desired orbital mismatch with Sn 5s/5p primarily interacting with 4s/4p M orbitals yielding localized, non-bonding d orbitals. This approach offers a mechanism to design and control spin states in bimetallic complexes. We report a series of high spin bimetallic transition metal–tin complexes. The unusual high spin configuration in a bimetallic complex is enabled by an energetic mismatch in the orbital energies, leading to lanthanide-like nonbonding interactions.![]()
Collapse
Affiliation(s)
- Scott C Coste
- Department of Chemistry, Northwestern University Evanston Illinois 60208 USA
| | - Tyler J Pearson
- Department of Chemistry, Northwestern University Evanston Illinois 60208 USA
| | - Alison B Altman
- Department of Chemistry, Northwestern University Evanston Illinois 60208 USA
| | - Ryan A Klein
- Department of Chemistry, Northwestern University Evanston Illinois 60208 USA
| | - Brian A Finney
- Department of Chemistry, University of South Dakota Vermillion South Dakota 57069 USA
| | - Michael Y Hu
- Advanced Photon Source, Argonne National Laboratory Lemont IL 60439 USA
| | - E Ercan Alp
- Advanced Photon Source, Argonne National Laboratory Lemont IL 60439 USA
| | - Bess Vlaisavljevich
- Department of Chemistry, University of South Dakota Vermillion South Dakota 57069 USA
| | - Danna E Freedman
- Department of Chemistry, Northwestern University Evanston Illinois 60208 USA
| |
Collapse
|
19
|
Magre M, Szewczyk M, Rueping M. Magnesium-Catalyzed Stereoselective Hydrostannylation of Internal and Terminal Alkynes. Org Lett 2020; 22:1594-1598. [DOI: 10.1021/acs.orglett.0c00184] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marc Magre
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Marcin Szewczyk
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| |
Collapse
|
20
|
Gonela UM, Yadav JS. Synthesis of chiral propargyl alcohols following the base-induced elimination protocol: application in the total synthesis of natural products. NEW J CHEM 2020. [DOI: 10.1039/c9nj05626b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Synthesis of enantiomerically pure propargyl alcohols is one of the most important tools in organic synthesis and “base-induced elimination of β-alkoxy chlorides” could offer the enantiomerically pure propargyl alcohols.
Collapse
Affiliation(s)
- Uma Maheshwar Gonela
- Natural Product Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Jhillu S. Yadav
- Natural Product Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
- School of Science
| |
Collapse
|
21
|
Saptal VB, Wang R, Park S. Recent advances in transition metal-free catalytic hydroelementation (E = B, Si, Ge, and Sn) of alkynes. RSC Adv 2020; 10:43539-43565. [PMID: 35519696 PMCID: PMC9058465 DOI: 10.1039/d0ra07768b] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/15/2020] [Indexed: 12/21/2022] Open
Abstract
This review describes the recent advances in the transition metal-free hydroelementation of alkynes with various metalloid hydrides.
Collapse
Affiliation(s)
- Vitthal B. Saptal
- Department of Chemistry
- Guangdong Technion Israel Institute of Technology
- China
| | - Ruibin Wang
- Department of Chemistry
- Guangdong Technion Israel Institute of Technology
- China
| | - Sehoon Park
- Department of Chemistry
- Guangdong Technion Israel Institute of Technology
- China
- Technion-Israel Institute of Technology
- 32000 Haifa
| |
Collapse
|
22
|
Maudrich JJ, Diab F, Weiß S, Widemann M, Dema T, Schubert H, Krebs KM, Eichele K, Wesemann L. Deprotonation of Organogermanium and Organotin Trihydrides. Inorg Chem 2019; 58:15758-15768. [PMID: 31368306 DOI: 10.1021/acs.inorgchem.9b01822] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Terphenyltin and terphenylgermanium trihydrides were deprotonated in reaction with strong bases, such as LiMe, LDA, or KBn. In the solid state, the Li salts of the germate anion 4 and 4a exhibit a Li-Ge contact. In the Li salt of the dihydridostannate anion 6a, the Li cation is not coordinated at the tin atom instead an interaction of the Li cation with the hydride substituents was found. Evidenced by 1H-7Li-HOESY NMR spectroscopy the Li-salt of the deprotonated tin hydride 6a exhibits in toluene solution a contact between Li cation and hydride substituents, whereas in the 1H-7Li-HOESY NMR spectrum of the homologous germate salt 4a, no crosspeak between hydride and Li signals was found. The organodihydridogermate and -stannate react as nucleophiles with low-valent Group 14 electrophiles. Thus, three compounds were synthesized: Ar-Ë'-EH2-Ar (E', E = Sn, Ge; Pb, Ge; Pb, Sn; Ar = Ar', Ar*). Following an alternative synthesis Ar'SnH2PbAr* was synthesized in reaction between [(Ar*PbH)2] and [(Ar'SnH)4] generated in situ. In reaction between low-valent organotin hydride [(Ar*SnH)2] and organdihydridostannate [Ar*SnH2]- formation of distannate [Ar*2Sn2H3]- was found.
Collapse
Affiliation(s)
- Jakob-Jonathan Maudrich
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| | - Fatima Diab
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| | - Sebastian Weiß
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| | - Max Widemann
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| | - Taulant Dema
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| | - Hartmut Schubert
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| | - Kilian M Krebs
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| | - Klaus Eichele
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| | - Lars Wesemann
- Institut für Anorganische Chemie , Universität Tübingen , Auf der Morgenstelle 18 , 72076 Tübingen , Germany
| |
Collapse
|
23
|
Baidilov D, Miskey S, Hudlicky T. Rapid Access to the Tricyclic Core of Calyciphylline A
-Type Alkaloids Through Allyl Cyanate-to-Isocyanate Rearrangement. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901549] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Daler Baidilov
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines ON Canada
| | - Scott Miskey
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines ON Canada
| | - Tomas Hudlicky
- Department of Chemistry and Centre for Biotechnology; Brock University; 1812 Sir Isaac Brock Way L2S 3A1 St. Catharines ON Canada
| |
Collapse
|
24
|
Tanaka H, Osaka I, Yoshida H. One-pot Sequential Fluorostannylation–Arylstannylation of Arynes. CHEM LETT 2019. [DOI: 10.1246/cl.190385] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hideya Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Itaru Osaka
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Hiroto Yoshida
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| |
Collapse
|
25
|
Synthesis of the Core Framework of the Cornexistins by Intramolecular Nozaki-Hiyama-Kishi Coupling. Molecules 2019; 24:molecules24142654. [PMID: 31336669 PMCID: PMC6680490 DOI: 10.3390/molecules24142654] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/17/2019] [Accepted: 07/18/2019] [Indexed: 11/26/2022] Open
Abstract
A new and direct approach to the construction of the core framework of the herbicidal natural products cornexistin and hydroxycornexistin has been developed. Formation of the nine-membered carbocycle found in the natural products has been accomplished by an intramolecular Nozaki-Hiyama-Kishi reaction between a vinylic iodide and an aldehyde. Good yields of carbocyclic products were obtained from the reaction, but diastereomeric mixtures of allylic alcohols were produced. The cyclisation reaction was successful irrespective of the relative configuration of the stereogenic centres in the cyclisation precursor.
Collapse
|
26
|
Longobardi LE, Fürstner A. trans
‐Hydroboration of Propargyl Alcohol Derivatives and Related Substrates. Chemistry 2019; 25:10063-10068. [DOI: 10.1002/chem.201902228] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/07/2019] [Indexed: 01/04/2023]
Affiliation(s)
- Lauren E. Longobardi
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim/Ruhr Germany
| |
Collapse
|
27
|
|
28
|
Xie S, Xu J, Yan T, Cai M. Highly Regio- and Stereoselective Synthesis of (1Z,3E)-2-sulfonyl-3-stannyl-1,3-dienes by hydrostannylation of (Z)-2-sulfonyl-1,3-enynes. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751913x13816588007726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Shiyun Xie
- Department of Chemistry, Jiangxi Normal University, Nanchang 330022, PR. China
| | - Ji Xu
- Shenzhen Second People's Hospital and The First Affiliated Hospital of Shenzhen University, Shenzhen 518060, PR. China
| | - Tao Yan
- Department of Chemistry, Jiangxi Normal University, Nanchang 330022, PR. China
| | - Mingzhong Cai
- Department of Chemistry, Jiangxi Normal University, Nanchang 330022, PR. China
| |
Collapse
|
29
|
Martínez-García L, Lobato R, Prado G, Monje P, Sardina FJ, Paleo MR. C-C Bond-Forming and Bond-Breaking Processes from the Reaction of Diesters with Me 3SnLi. Synthesis of Complex Bridged Polycycles and Dialkyl Aromatic Compounds. J Org Chem 2019; 84:1887-1897. [PMID: 30665302 DOI: 10.1021/acs.joc.8b02891] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
1,2-Aromatic diesters can be transformed into strained bridged polycyclic structures by a two-step procedure consisting of an initial reductive alkylation promoted by alkaline metals, followed by a reaction of the resulting unsaturated diesters with Me3SnLi. We propose that a stanna-Brook rearrangement plays a fundamental role in the formation of the polycyclic organotin acetals obtained. These unusual compounds could be further functionalized by tin-lithium exchange followed by alkylation of the newly formed tertiary carbanion. Alternatively, dialkylated aromatic hydrocarbons have been prepared via a decarbonilation reaction promoted by Me3SnLi. 1,4-Aromatic diesters were reductively dialkylated and then transformed into norbornadienone derivatives by reaction with Me3SnLi. Several stable dibenzonorbornadienones 41 have been prepared in just two steps starting from anthracene 38. The corresponding naphthalene analogues gave 1,4-dialkylnaphthalenes. The synthetic protocols described provide access to structures that are not easily obtained through existing synthetic methodologies.
Collapse
Affiliation(s)
- Lucas Martínez-García
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - Rubén Lobato
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - Gustavo Prado
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - Pablo Monje
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - F Javier Sardina
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - M Rita Paleo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 Santiago de Compostela , Spain
| |
Collapse
|
30
|
Cheng LJ, Mankad NP. Heterobimetallic Control of Regioselectivity in Alkyne Hydrostannylation: Divergent Syntheses of α- and (E)-β-Vinylstannanes via Cooperative Sn–H Bond Activation. J Am Chem Soc 2019; 141:3710-3716. [DOI: 10.1021/jacs.9b00068] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
| | - Neal P. Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
| |
Collapse
|
31
|
Han L, Mirzaei F, Shimada S. Regio‐ and stereoselective addition of
trans
‐Pt(TeAr)(SiMe
3
)(
PE
t
3
)
2
to terminal alkynes leading to
cis
‐[(
Z
)‐
β
‐trimethylsilylalkenyl]platinum(
II
) complexes. HETEROATOM CHEMISTRY 2018. [DOI: 10.1002/hc.21463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Li‐Biao Han
- National Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki Japan
| | - Farzad Mirzaei
- National Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki Japan
| | - Shigeru Shimada
- National Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki Japan
| |
Collapse
|
32
|
Wiesemann M, Hoge B. Pentafluoroethylated Compounds of Silicon, Germanium and Tin. Chemistry 2018; 24:16457-16471. [PMID: 29722451 DOI: 10.1002/chem.201801292] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/24/2018] [Indexed: 11/09/2022]
Abstract
In this contribution we present an account on pentafluoroethylated compounds of silicon, germanium and tin. The pronounced electron-withdrawing effect of the pentafluoroethyl group leads to a markedly increased Lewis acidity at the central atom which results in the stabilization of hypervalent complexes, anionic element(II) species as well as remarkable reactivities of element-element and element-hydrogen bonds. By addition to unsaturated C-C bonds or by reaction with organic halides as well as transition-metal complexes the molecules bearing a pentafluoroethyl-element group are readily accessible. Moreover, the utilization of pentafluoroethyl groups facilitates the formation of donor-stabilized germylenes and stannylenes. A series of such compounds serves as suitable pentafluoroethylation reagents. Conversely to the well-studied trifluoromethyl derivatives these compounds frequently exhibit a higher thermostability, which allows a more convenient handling.
Collapse
Affiliation(s)
- Markus Wiesemann
- Centrum für Molekulare Materialien, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Berthold Hoge
- Centrum für Molekulare Materialien, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| |
Collapse
|
33
|
Forster F, Rendón López VM, Oestreich M. Z-Selective Hydrostannylation of Terminal and Internal C–C Triple Bonds Initiated by the Trityl Cation. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francis Forster
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Victoria M. Rendón López
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| |
Collapse
|
34
|
Aicher FSW, Eichele K, Schubert H, Wesemann L. Complete Hydrogen Transfer: Tin Hydride Reactivity toward Adamantylisonitrile and Benzonitrile. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00207] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Frederik S. W. Aicher
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Klaus Eichele
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Hartmut Schubert
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Lars Wesemann
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| |
Collapse
|
35
|
Mandla KA, Moore CE, Rheingold AL, Figueroa JS. Regioselective Formation of (
E
)‐β‐Vinylstannanes with a Topologically Controlled Molybdenum‐Based Alkyne Hydrostannation Catalyst. Angew Chem Int Ed Engl 2018; 57:6853-6857. [DOI: 10.1002/anie.201802397] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Kyle A. Mandla
- Department of Chemistry and Biochemistry Section of Synthesis, Materials and Chemical Biology University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
| | - Curtis E. Moore
- Department of Chemistry and Biochemistry Section of Synthesis, Materials and Chemical Biology University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry Section of Synthesis, Materials and Chemical Biology University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
| | - Joshua S. Figueroa
- Department of Chemistry and Biochemistry Section of Synthesis, Materials and Chemical Biology University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
| |
Collapse
|
36
|
Mandla KA, Moore CE, Rheingold AL, Figueroa JS. Regioselective Formation of (
E
)‐β‐Vinylstannanes with a Topologically Controlled Molybdenum‐Based Alkyne Hydrostannation Catalyst. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802397] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kyle A. Mandla
- Department of Chemistry and Biochemistry Section of Synthesis, Materials and Chemical Biology University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
| | - Curtis E. Moore
- Department of Chemistry and Biochemistry Section of Synthesis, Materials and Chemical Biology University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry Section of Synthesis, Materials and Chemical Biology University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
| | - Joshua S. Figueroa
- Department of Chemistry and Biochemistry Section of Synthesis, Materials and Chemical Biology University of California, San Diego 9500 Gilman Drive MC 0358 La Jolla CA 92093 USA
| |
Collapse
|
37
|
Abstract
This review covers diastereo- and enantiodivergent catalyzed reactions in acyclic and cyclic systems using metal complexes or organocatalysts. Among them, nucleophilic addition to carbon-carbon and carbon-nitrogen double bonds, α-functionalization of carbonyl compounds, allylic substitutions, and ring opening of oxiranes and aziridines are considered. The diastereodivergent synthesis of alkenes from alkynes is also included. Finally, stereodivergent intramolecular and intermolecular cycloadditions and other cyclizations are also reported.
Collapse
Affiliation(s)
- Irina P Beletskaya
- Chemistry Department , M. V. Lomonosov Moscow State University , Leninskie Gory 1 , 119992 Moscow , Russia
| | - Carmen Nájera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Miguel Yus
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| |
Collapse
|
38
|
Wiesemann M, Niemann M, Klösener J, Neumann B, Stammler HG, Hoge B. Tris(pentafluoroethyl)stannane: Tin Hydride Chemistry with an Electron-Deficient Stannane. Chemistry 2018; 24:2699-2708. [DOI: 10.1002/chem.201705068] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Markus Wiesemann
- Centrum für Molekulare Materialien; Fakultät für Chemie; Universität Bielefeld; Universitätsstraße 25 33615 Bielefeld Germany
| | - Mark Niemann
- Centrum für Molekulare Materialien; Fakultät für Chemie; Universität Bielefeld; Universitätsstraße 25 33615 Bielefeld Germany
| | - Johannes Klösener
- Centrum für Molekulare Materialien; Fakultät für Chemie; Universität Bielefeld; Universitätsstraße 25 33615 Bielefeld Germany
| | - Beate Neumann
- Centrum für Molekulare Materialien; Fakultät für Chemie; Universität Bielefeld; Universitätsstraße 25 33615 Bielefeld Germany
| | - Hans-Georg Stammler
- Centrum für Molekulare Materialien; Fakultät für Chemie; Universität Bielefeld; Universitätsstraße 25 33615 Bielefeld Germany
| | - Berthold Hoge
- Centrum für Molekulare Materialien; Fakultät für Chemie; Universität Bielefeld; Universitätsstraße 25 33615 Bielefeld Germany
| |
Collapse
|
39
|
Koppaka A, Gamage MM, Captain B. Intermediates and catalytic hydrostannylation. Characterization of a rare complex Pt(IPr)[η2-E-(SnBut3)(H)C C(SiMe3)(H)]. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.03.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
40
|
Roşca DA, Radkowski K, Wolf LM, Wagh M, Goddard R, Thiel W, Fürstner A. Ruthenium-Catalyzed Alkyne trans-Hydrometalation: Mechanistic Insights and Preparative Implications. J Am Chem Soc 2017; 139:2443-2455. [DOI: 10.1021/jacs.6b12517] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | - Karin Radkowski
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Larry M. Wolf
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Minal Wagh
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| |
Collapse
|
41
|
Davis HJ, Phipps RJ. Harnessing non-covalent interactions to exert control over regioselectivity and site-selectivity in catalytic reactions. Chem Sci 2017; 8:864-877. [PMID: 28572898 PMCID: PMC5452277 DOI: 10.1039/c6sc04157d] [Citation(s) in RCA: 247] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 10/05/2016] [Indexed: 12/20/2022] Open
Abstract
Asymmetric catalysis has been revolutionised by the realisation that attractive non-covalent interactions such as hydrogen bonds and ion pairs can act as powerful controllers of enantioselectivity when incorporated into appropriate small molecule chiral scaffolds. Given these tremendous advances it is surprising that there are still a relatively limited number of examples of non-covalent interactions being harnessed for control of regioselectivity or site-selectivity in catalysis, two other fundamental selectivity aspects facing the synthetic chemist. This perspective examines the progress that has been made in this area thus far using non-covalent interactions in conjunction with transition metal catalysis as well as in the context of purely organic catalysts. We hope this will highlight the great potential in this approach for designing selective catalytic reactions.
Collapse
Affiliation(s)
- Holly J Davis
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , CB2 1EW , UK .
| | - Robert J Phipps
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , CB2 1EW , UK .
| |
Collapse
|
42
|
Dwivedi V, Rajesh M, Kumar R, Kant R, Sridhar Reddy M. A stereoselective thiocyanate conjugate addition to electron deficient alkynes and concomitant cyclization to N,S-heterocycles. Chem Commun (Camb) 2017; 53:11060-11063. [DOI: 10.1039/c7cc06081e] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A regio- and stereoselective thiocyanate addition to ynones and the concomitant cyclizations of resultant vinyl thiocyanate to access thio-aza heterocycles are achieved using KSCN in AcOH without the need of any metal catalyst.
Collapse
Affiliation(s)
- Vikas Dwivedi
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Manda Rajesh
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Ravi Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Ruchir Kant
- MSB Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| |
Collapse
|
43
|
Shamim A, Barbeiro CS, Ali B, Stefani HA. Synthesis of Stannyl-Substitutedd-Glucal Derivatives via Palladium-Catalyzed Regioselective Hydrostannation and Their Synthetic Applications. ChemistrySelect 2016. [DOI: 10.1002/slct.201601232] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anwar Shamim
- Instituto de Química; Universidade de São Paulo; São Paulo - SP Brasil
| | - Criatiane S. Barbeiro
- Departamento de Farmácia, Faculdade de Ciências Farmacêuticas; Universidade de São Paulo; São Paulo - SP Brasil
| | - Bakhat Ali
- Department of Chemistry; University of Education D. G. Khan Campus; D. G. Khan 32200 Pakistan
| | - Hélio A. Stefani
- Instituto de Química; Universidade de São Paulo; São Paulo - SP Brasil
- Departamento de Farmácia, Faculdade de Ciências Farmacêuticas; Universidade de São Paulo; São Paulo - SP Brasil
| |
Collapse
|
44
|
Frihed TG, Fürstner A. Progress in the trans-Reduction and trans-Hydrometalation of Internal Alkynes. Applications to Natural Product Synthesis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20150317] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
45
|
Wang P, Huang B, Xie S, Tuo Y, Cai M. Highly Regioselective and Stereoselective Hydrostannylation of (Z)-2-Ethoxycarbonyl-1,3-Enynes Leading to (1E,3E)-2-Ethoxycarbonyl-3-Stannyl-1,3-Dienes. JOURNAL OF CHEMICAL RESEARCH 2015. [DOI: 10.3184/174751915x14447407625303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The Stille coupling of (E)-α-stannyl-α,β-unsaturated esters with alkynyl bromides in DMF in the presence of Pd(PPh3)4 and CuI gave (Z)-2-ethoxycarbonyl-1,3-enynes in good yields. The latter underwent the palladium-catalysed hydrostannylation with tributyltin hydride in THF at room temperature to afford (1E,3E)-2-ethoxycarbonyl-3- stannyl-1,3-dienes in good yields with high regio- and stereoselectivities.
Collapse
Affiliation(s)
- Pingping Wang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P. R. China
- Department of Chemistry, Jiujiang University, Jiujiang 330022, P. R. China
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Shiyun Xie
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Yuxin Tuo
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and Department of Chemistry, Jiangxi Normal University, Nanchang 330022, P. R. China
| |
Collapse
|
46
|
Frost JR, Pearson CM, Snaddon TN, Booth RA, Turner RM, Gold J, Shaw DM, Gaunt MJ, Ley SV. Callipeltosides A, B and C: Total Syntheses and Structural Confirmation. Chemistry 2015; 21:13261-77. [PMID: 26230615 PMCID: PMC4583783 DOI: 10.1002/chem.201501877] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Indexed: 12/31/2022]
Abstract
Since their isolation almost 20 years ago, the callipeltosides have been of long standing interest to the synthetic community owing to their unique structural features and inherent biological activity. Herein we present our full research effort that has led to the synthesis of these molecules. Key aspects of our final strategy include 1) synthesis of the C1-C9 pyran core (5) using an AuCl3 -catalysed cyclisation; 2) formation of C10-C22 vinyl iodide (55) by sequential bidirectional Stille reactions and 3) diastereoselective union of these advanced fragments by means of an alkenylzinc addition (d.r.=91:9 at C9). The common callipeltoside aglycon (4) was completed in a further five steps. Following this, all three sugar fragments were appended to provide the entire callipeltoside family. In addition to this, D-configured callipeltose B was synthesised and appended to the callipeltoside aglycon. The (1) H NMR spectrum of this molecule was found to be significantly different to the natural isolate, further supporting our assignment of callipeltoside B (2).
Collapse
Affiliation(s)
- James R Frost
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK).
| | - Colin M Pearson
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Thomas N Snaddon
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
- Current address: Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47405 (USA)
| | - Richard A Booth
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Richard M Turner
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Johan Gold
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - David M Shaw
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Matthew J Gaunt
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Steven V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK).
| |
Collapse
|
47
|
Rummelt SM, Radkowski K, Roşca DA, Fürstner A. Interligand Interactions Dictate the Regioselectivity oftrans-Hydrometalations and Related Reactions Catalyzed by [Cp*RuCl]. Hydrogen Bonding to a Chloride Ligand as a Steering Principle in Catalysis. J Am Chem Soc 2015; 137:5506-19. [DOI: 10.1021/jacs.5b01475] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Karin Radkowski
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | | | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| |
Collapse
|
48
|
Shiro D, Fujiwara SI, Tsuda S, Iwasaki T, Kuniyasu H, Kambe N. Palladium-catalyzed Insertion Reactions of Isocyanides into Thiocarbamates and Selenocarbamates. CHEM LETT 2015. [DOI: 10.1246/cl.141141] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Daisuke Shiro
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | | | - Susumu Tsuda
- Department of Chemistry, Osaka Dental University
| | - Takanori Iwasaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Hitoshi Kuniyasu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Nobuaki Kambe
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| |
Collapse
|
49
|
Yoshida H, Shinke A, Kawano Y, Takaki K. Copper-catalyzed α-selective hydrostannylation of alkynes for the synthesis of branched alkenylstannanes. Chem Commun (Camb) 2015; 51:10616-9. [DOI: 10.1039/c5cc02720a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A universal system for highly α-selective hydrostannylation of terminal alkynes has been developed by use of a distannane or a silylstannane as a stannylating reagent under copper catalysis.
Collapse
Affiliation(s)
- H. Yoshida
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - A. Shinke
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Y. Kawano
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - K. Takaki
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| |
Collapse
|
50
|
Affiliation(s)
- Hiroto Yoshida
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University
| |
Collapse
|