1
|
Affiliation(s)
- Qiang Huang
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wei-Na Wang
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Shou-Fei Zhu
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300070, China
| |
Collapse
|
2
|
Zhang C, Hu W, Morken JP. α-Boryl Organometallic Reagents in Catalytic Asymmetric Synthesis. ACS Catal 2021; 11:10660-10680. [PMID: 35591862 DOI: 10.1021/acscatal.1c02496] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent years have witnessed an increase in the popularity of α-boryl organometallic reagents as versatile nucleophiles in asymmetric synthesis. These compounds have been adopted in chemo- and stereoselective coupling reactions with a number of different electrophiles. The resulting enantioenriched boronic esters can be applied in stereospecific carbon-carbon or carbon-heteroatom bond construction reactions, enabling a two-step strategy for the construction of complex structures with high efficiency and functional group compatibility. Due to these reasons, tremendous effort has been devoted to the preparation of enantiomerically enriched α-boryl organometallic reagents and to the development of stereoselective reactions of related racemic or prochiral materials. In this review, we describe the enantio- or diastereoselective reactions that involve α-boryl organometallic reagents as starting materials or products and we showcase their synthetic utility.
Collapse
Affiliation(s)
- Chenlong Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Weipeng Hu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - James P. Morken
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| |
Collapse
|
3
|
Jo W, Lee JH, Cho SH. Advances in transition metal-free deborylative transformations of gem-diborylalkanes. Chem Commun (Camb) 2021; 57:4346-4353. [PMID: 33949473 DOI: 10.1039/d1cc01048d] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Carbanions serve as key intermediates in a variety of chemical transformations. Particularly, α-borylcarbanions have received considerable attention in recent years because of their peculiar properties, including the ability of boron atom resonance to stabilise the adjacent negatively charged carbon atom. This feature article summarises recent progress in the synthetic utilisation of α-borylcarbanions, including carbon-carbon bond formation with alkyl halides, alkenes, N-heteroarenes, and carbonyls. Carbon-boron bond formation in organohalides mediated by α-borylcarbanions is also summarised.
Collapse
Affiliation(s)
- Woohyun Jo
- Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea.
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University - Gyeongju Campus, Gyeongju, Gyeongsangbuk-do, Republic of Korea.
| | - Seung Hwan Cho
- Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea.
| |
Collapse
|
4
|
Abstract
For the preparation of zinc organometallics bearing highly sensitive functional groups such as ketones, aldehydes or nitro groups, especially mild halogen-zinc exchange reagents have proven to be of great potential. In this Minireview, the latest research in the area of the halogen-zinc exchange reaction is reported, with a special focus lying on novel dialkylzinc reagents complexed with lithium alkoxides. Additionally, the preparation and application of organofluorine zinc reagents and transition-metal-catalyzed halogen-zinc exchange reactions are reviewed.
Collapse
Affiliation(s)
- Moritz Balkenhohl
- Department Chemie und PharmazieLudwig-Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - Paul Knochel
- Department Chemie und PharmazieLudwig-Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| |
Collapse
|
5
|
Miralles N, Maza RJ, Fernández E. Synthesis and Reactivity of 1,1-Diborylalkanes towards C-C Bond Formation and Related Mechanisms. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701390] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Núria Miralles
- Dept. Química Física i Inorgànica, Facultat Química; Universitat Rovira i Virgili; 43005 Tarragona Spain
| | - Ricardo J. Maza
- Dept. Química Física i Inorgànica, Facultat Química; Universitat Rovira i Virgili; 43005 Tarragona Spain
| | - Elena Fernández
- Dept. Química Física i Inorgànica, Facultat Química; Universitat Rovira i Virgili; 43005 Tarragona Spain
| |
Collapse
|
6
|
Benischke AD, Le Corre G, Knochel P. Preparation of Polyfunctional Organozinc Halides by an InX3- and LiCl-Catalyzed Zinc Insertion to Aryl and Heteroaryl Iodides and Bromides. Chemistry 2016; 23:778-782. [DOI: 10.1002/chem.201605139] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Andreas D. Benischke
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstrasse 5-13, Haus F 81377 München Germany
| | - Grégoire Le Corre
- Laboratoire de Chimie Moléculaire; CNRS; Ecole Polytechnique; Route de Saclay 91128 Palaiseau France
| | - Paul Knochel
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstrasse 5-13, Haus F 81377 München Germany
| |
Collapse
|
7
|
Brunner A, Hintermann L. Configurational Assignment of ‘Cryptochiral’ 10-Hydroxystearic Acid Through an Asymmetric Catalytic Synthesis. Helv Chim Acta 2016. [DOI: 10.1002/hlca.201600242] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Andreas Brunner
- Department Chemie; Technische Universität München; Lichtenbergstraße 4 DE-85748 Garching bei München Germany
| | - Lukas Hintermann
- Department Chemie; Technische Universität München; Lichtenbergstraße 4 DE-85748 Garching bei München Germany
- TUM Catalysis Research Center; Ernst-Otto-Fischer-Straße 1 DE-85748 Garching bei München Germany
| |
Collapse
|
8
|
Benischke AD, Leroux M, Knoll I, Knochel P. Iron-Catalyzed Acylation of Polyfunctionalized Aryl- and Benzylzinc Halides with Acid Chlorides. Org Lett 2016; 18:3626-9. [PMID: 27457108 DOI: 10.1021/acs.orglett.6b01677] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
FeCl2 (5 mol %) catalyzes a smooth and convenient acylation of functionalized arylzinc halides at 50 °C (2-4 h) and benzylic zinc chlorides at 25 °C (0.5-4 h) with a variety of acid chlorides leading to polyfunctionalized diaryl and aryl heteroaryl ketones.
Collapse
Affiliation(s)
- Andreas D Benischke
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Marcel Leroux
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Irina Knoll
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| |
Collapse
|
9
|
Hong K, Liu X, Morken JP. Simple access to elusive α-boryl carbanions and their alkylation: an umpolung construction for organic synthesis. J Am Chem Soc 2014; 136:10581-4. [PMID: 25019925 PMCID: PMC4353009 DOI: 10.1021/ja505455z] [Citation(s) in RCA: 205] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The reaction of 1,1-bis(pinacolboronate) esters with alkyl halides can be effected by metal alkoxides and provides a strategy for the construction of organoboronate compounds. The reaction is found to occur by alkoxide-induced deborylation and generation of a boron-stabilized carbanion.
Collapse
Affiliation(s)
- Kai Hong
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
| | | | | |
Collapse
|
10
|
Klatt T, Markiewicz JT, Sämann C, Knochel P. Strategies To Prepare and Use Functionalized Organometallic Reagents. J Org Chem 2014; 79:4253-69. [DOI: 10.1021/jo500297r] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Thomas Klatt
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, Haus F, 81377 München, Germany
| | - John T. Markiewicz
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, Haus F, 81377 München, Germany
| | - Christoph Sämann
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, Haus F, 81377 München, Germany
| | - Paul Knochel
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, Haus F, 81377 München, Germany
| |
Collapse
|
11
|
Miersch A, Harms K, Hilt G. Zinc-mediated addition of diethyl bromomalonate to alkynes for the cascade reaction towards polysubstituted pyranones and tetracarbonyl derivatives. Chem Commun (Camb) 2014; 50:542-4. [PMID: 24266022 DOI: 10.1039/c3cc46788k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The zinc-mediated regioselective addition reactions of diethyl bromomalonate and aromatic and aliphatic alkynes were investigated for the synthesis of vinyl malonates. When the vinyl organo-zinc intermediates were reacted with acid chlorides 2H-pyran-2-ones were obtained while the application of oxalyl chloride and an amine led to tetracarbonyl derivatives in a one-pot multi-step reaction sequence.
Collapse
Affiliation(s)
- Anne Miersch
- Fachbereich Chemie, Hans-Meerwein-Str., 35043 Marburg, Germany.
| | | | | |
Collapse
|
12
|
Yamada S, Takahashi T, Konno T, Ishihara T. Fluorine–copper exchange reaction of α,β,γ,γ,γ-pentafluorocrotonates with organocuprates: Generation and cross-coupling reactions of β-metallated α,γ,γ,γ-tetrafluorocrotonates. J Fluor Chem 2013. [DOI: 10.1016/j.jfluchem.2013.01.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
13
|
Almansa R, Collados JF, Guijarro D, Yus M. Polymer-supported l-prolinol-based catalysts for the enantioselective addition of dialkylzinc reagents to N-(diphenylphosphinyl)imines. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2012.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
14
|
Murthy AS, Mahipal B, Chandrasekhar S. Asymmetric Synthesis of the C14-C26 Building Block of Eribulin Mesylate. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201119] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
15
|
Campbell JB, Firor JW. Synthesis of 5-Substituted Aminopyrrolo[3,4-b]quinolinones by a Diorganozinc-Mediated Tandem Alkylation/Cyclization. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2010.542537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
16
|
Jagtap R, Joshi N. Bidentate ligand-catalyzed enantioselective addition of RZnX to benzaldehyde. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
17
|
Binder CM, Singaram B. Asymmetric Addition of Diorganozinc Reagents to Aldehydes and Ketones. ORG PREP PROCED INT 2011. [DOI: 10.1080/00304948.2011.564538] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
18
|
Jana R, Pathak TP, Sigman MS. Advances in transition metal (Pd, Ni, Fe)-catalyzed cross-coupling reactions using alkyl-organometallics as reaction partners. Chem Rev 2011; 111:1417-92. [PMID: 21319862 PMCID: PMC3075866 DOI: 10.1021/cr100327p] [Citation(s) in RCA: 1651] [Impact Index Per Article: 127.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ranjan Jana
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8500
| | - Tejas P. Pathak
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8500
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8500
| |
Collapse
|
19
|
Soai K, Ohno Y, Inoue Y, Tsuruoka T, Hirose Y. Catalytic enantioselective alkylation of aldehydes using chiral hydrogen phosphoramidates and hydrogen phosphinamides and their thio analogs. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19951140404] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
20
|
Wissing E, Kleijn H, Boersma J, van Koten G. Regioselective introduction of functional groups in α-diimines by means of dialkylzinc compounds. Synthesis of functionalized 2- and 3-pyrrolidinone derivatives. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19931121203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
21
|
Gruter GJM, Akkerman OS, Bickelhaupt F, Smeets WJJ, Spek AL. A remarkable halogen-zinc exchange reaction; X-ray crystal structure of (2-iodozincio-1,3-xylylene)-15-crown-4. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19931120621] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
22
|
Yamada S, Shimoji K, Takahashi T, Konno T, Ishihara T. An Effective Preparation of Sulfonyl- or Sulfinyl-Substituted Fluorinated Alkenes and their Stereoselective Addition-Elimination Reactions with Organocuprates. Chem Asian J 2010; 5:1846-53. [DOI: 10.1002/asia.201000022] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
23
|
Stanton GR, Johnson CN, Walsh PJ. Overriding Felkin control: a general method for highly diastereoselective chelation-controlled additions to alpha-silyloxy aldehydes. J Am Chem Soc 2010; 132:4399-408. [PMID: 20218659 PMCID: PMC2850917 DOI: 10.1021/ja910717p] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
According to the Felkin-Anh and Cram-chelation models, nucleophilic additions to alpha-silyloxy aldehydes proceed through a nonchelation pathway due to the steric and electronic properties of the silyl group, giving rise to Felkin addition products. Herein we describe a general method to promote chelation-control in additions to alpha-silyloxy aldehydes. Dialkylzincs, functionalized dialkylzincs, and (E)-disubstituted, (E)-trisubstituted, and (Z)-disubstituted vinylzinc reagents add to silyl-protected alpha-hydroxy aldehydes with high selectivity for chelation-controlled products (dr of 10:1 to >20:1) in the presence of alkylzinc halides or triflates, RZnX. With the high functional group tolerance of organozinc reagents, the mild Lewis acidity of RZnX, and the excellent diastereoselectivities favoring the chelation-controlled products, this method will be useful in the synthesis of natural products. A mechanism involving chelation is supported by (1) NMR studies of a model substrate, (2) a dramatic increase in reaction rate in the presence of an alkylzinc halide, and (3) higher diastereoselectivity with larger alkyl substituents on the alpha-carbon of the aldehyde. This method provides access to chelation-controlled addition products with high diastereoselectivity previously unavailable using achiral organometallic reagents.
Collapse
Affiliation(s)
- Gretchen R Stanton
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA
| | | | | |
Collapse
|
24
|
Muramatsu Y, Kanehira S, Tanigawa M, Miyawaki Y, Harada T. Catalytic Enantioselective Alkylation and Arylation of Aldehydes by Using Grignard Reagents. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2010. [DOI: 10.1246/bcsj.20090232] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
25
|
Kim HY, Salvi L, Carroll PJ, Walsh PJ. One-pot catalytic enantio- and diastereoselective syntheses of anti-, syn-cis-disubstituted, and syn-vinyl cyclopropyl alcohols. J Am Chem Soc 2010; 132:402-12. [PMID: 19954146 PMCID: PMC2805046 DOI: 10.1021/ja907781t] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Highly enantio- and diastereoselective methods for the synthesis of a variety of cyclopropyl alcohols are reported. These methods represent the first one-pot approaches to syn-vinyl cyclopropyl alcohols, syn-cis-disubstituted cyclopropyl alcohols, and anti-cyclopropyl alcohols from achiral precursors. The methods begin with enantioselective C-C bond formations promoted by a MIB-based zinc catalyst to generate allylic alkoxide intermediates. The intermediates are then subjected to in situ alkoxide-directed cyclopropanation to provide cyclopropyl alcohols. In the synthesis of vinyl cyclopropyl alcohols, hydroboration of enynes is followed by transmetalation of the resulting dienylborane to zinc to provide dienylzinc reagents. Enantioselective addition to aldehydes generates the requisite dienyl zinc alkoxides, which are then subjected to in situ cyclopropanation to furnish vinyl cyclopropyl alcohols. Cyclopropanation occurs at the double bond allylic to the alkoxide. Using this method, syn-vinylcyclopropyl alcohols are obtained in 65-85% yield, 76-93% ee, and > 19:1 dr. To prepare anti-cyclopropanols, enantioselective addition of alkylzinc reagents to conjugated enals provides allylic zinc alkoxides. Because direct cyclopropanation provides syn-cyclopropyl alcohols, the intermediate allylic alkoxides were treated with TMSCl/Et(3)N to generate intermediate silyl ethers. In situ cyclopropanation of the allylic silyl ether resulted in cyclopropanation to form the anti-cyclopropyl silyl ether. Workup with TBAF affords the anti-cyclopropyl alcohols in one pot in 60-82% yield, 89-99% ee, and > or = 10:1 dr. For the synthesis of cis-disubstituted cyclopropyl alcohols, in situ generated (Z)-vinyl zinc reagents were employed in asymmetric addition to aldehydes to generate (Z)-allylic zinc alkoxides. In situ cyclopropanation provides syn-cis-disubstituted cyclopropyl alcohols in 42-70% yield, 88-97% ee, and > 19:1 dr. These one-pot procedures enable the synthesis of a diverse array of cyclopropyl alcohol building blocks with high enantio- and diastereoselectivities.
Collapse
Affiliation(s)
- Hun Young Kim
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| | - Luca Salvi
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| | - Patrick J. Carroll
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| | - Patrick J. Walsh
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| |
Collapse
|
26
|
Trenkle JD, Jamison TF. Macrocyclization by nickel-catalyzed, ester-promoted, epoxide-alkyne reductive coupling: total synthesis of (-)-gloeosporone. Angew Chem Int Ed Engl 2009; 48:5366-8. [PMID: 19536804 DOI: 10.1002/anie.200902079] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Ringing the changes: The total synthesis of the title compound centers around a novel strategy that employs a nickel(0)-phosphine complex and triethyl borane in an efficient closure of a 14-membered ring through C--C bond formation (see scheme; cod=cyclooctadiene). The synthesis was accomplished in 10 steps and in approximately 9 % overall yield.
Collapse
Affiliation(s)
- James D Trenkle
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | |
Collapse
|
27
|
Gourdet B, Rudkin ME, Watts CA, Lam HW. Preparation of Multisubstituted Enamides via Rhodium-Catalyzed Carbozincation and Hydrozincation of Ynamides. J Org Chem 2009; 74:7849-58. [PMID: 19754108 DOI: 10.1021/jo901658v] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Benoit Gourdet
- School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, United Kingdom
| | - Mairi E. Rudkin
- School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, United Kingdom
| | - Ciorsdaidh A. Watts
- School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, United Kingdom
| | - Hon Wai Lam
- School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, United Kingdom
| |
Collapse
|
28
|
Ananthi N, Balakrishnan U, Vinu A, Ariga K, Velmathi S. Chiral amide from (1S,2R)-(+)-norephedrine alkaloid in the enantioselective addition of diethylzinc to aryl and heteroaryl aldehydes. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.07.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
29
|
Trenkle J, Jamison T. Macrocyclization by Nickel-Catalyzed, Ester-Promoted, Epoxide-Alkyne Reductive Coupling: Total Synthesis of (−)-Gloeosporone. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200902079] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
30
|
Nakamura S, Liu CY, Muranaka A, Uchiyama M. Theoretical Study on the Halogen-Zinc Exchange Reaction by Using Organozincate Compounds. Chemistry 2009; 15:5686-94. [DOI: 10.1002/chem.200802393] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
31
|
Wang B, Liu RH. Stereospecific, Flexible and Redox-Economic Asymmetric Synthesis ofcis- andtrans-3-Hydroxypipecolic Acids and Analogs. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900231] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
32
|
Johnson JB, Cook MJ, Rovis T. Ligand differentiated complementary Rh-catalyst systems for the enantioselective desymmetrization of meso-cyclic anhydrides. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.10.075] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
33
|
Kim HY, Salvi L, Carroll PJ, Walsh PJ. Highly enantio- and diastereoselective one-pot methods for the synthesis of halocyclopropyl alcohols. J Am Chem Soc 2009; 131:954-62. [PMID: 19154172 DOI: 10.1021/ja806989n] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The lack of methods for the stereoselective transfer of functionalized carbenoids is one of the most significant deficiencies of Simmons-Smith cyclopropanation reactions. Outlined herein are one-pot methods for the catalytic asymmetric synthesis of halocyclopropyl alcohols with up to four stereogenic centers from achiral starting materials. The first method involves asymmetric alkyl addition to a conjugated enal to generate an allylic alkoxide followed by tandem diastereoselective iodo-, bromo-, or chlorocyclopropanation to furnish halocyclopropyl alcohols. Enantioselectivities in these processes range from 89-99%, and dr's of >20:1 were achieved with all substrates optimized. The second method consists of an asymmetric vinylation of a saturated or aromatic aldehyde followed by a diastereoselective iodocyclopropanation to produce iodocyclopropyl alcohols with enantioselectivities between 86 and 99% and dr's of >20:1. These complementary methods enable the efficient synthesis of a variety of halocyclopropyl alcohols in one-pot procedures. Preliminary efforts to functionalize iodocyclopropanes involve reaction with an excess of LiCu(n-Bu)(2) to generate the cyclopropyl cuprate. This intermediate can be quenched with allyl bromides to generate the allylated cyclopropyl alcohols without loss of enantio- or diastereoselectivity.
Collapse
Affiliation(s)
- Hun Young Kim
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA
| | | | | | | |
Collapse
|
34
|
Yamada KI, Tomioka K. Copper-catalyzed asymmetric alkylation of imines with dialkylzinc and related reactions. Chem Rev 2008; 108:2874-86. [PMID: 18652515 DOI: 10.1021/cr078370u] [Citation(s) in RCA: 245] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ken-ichi Yamada
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo, Kyoto 606-8501, Japan
| | | |
Collapse
|
35
|
Xu XH, Qiu XL, Qing FL. Synthesis and utilization of trifluoromethylated amino alcohol ligands for the enantioselective Reformatsky reaction and addition of diethylzinc to N-(diphenylphosphinoyl)imine. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.05.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
36
|
Almansa R, Guijarro D, Yus M. Microwave-accelerated enantioselective addition of dialkylzinc reagents to N-(diphenylphosphinoyl)imines catalysed by β-aminoalcohols with the prolinol skeleton. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
37
|
Liu RH, Fang K, Wang B, Xu MH, Lin GQ. Concise Asymmetric Synthesis of (+)-CP-99,994 and (+)-L-733,060 via Efficient Construction of Homochiral syn-1,2-Diamines and syn-1,2-Amino Alcohols. J Org Chem 2008; 73:3307-10. [DOI: 10.1021/jo8002979] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Run-Hua Liu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Kai Fang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Bing Wang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Ming-Hua Xu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Guo-Qiang Lin
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| |
Collapse
|
38
|
Wessjohann LA, Schmidt G, Schrekker HS. Reaction of secondary and tertiary aliphatic halides with aromatic aldehydes mediated by chromium(II): a selective cross-coupling of alkyl and ketyl radicals. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.12.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
39
|
Almansa R, Guijarro D, Yus M. Enantioselective addition of dialkylzinc reagents to N-(diphenylphosphinoyl)imines catalyzed by β-aminoalcohols with the prolinol skeleton. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.11.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
40
|
Cook MJ, Rovis T. Rhodium-catalyzed enantioselective desymmetrization of meso-3,5-dimethyl glutaric anhydride: a general strategy to syn-deoxypolypropionate synthons. J Am Chem Soc 2007; 129:9302-3. [PMID: 17622150 DOI: 10.1021/ja073269s] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthew J Cook
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | | |
Collapse
|
41
|
Walsh PJ, Li H, de Parrodi CA. A green chemistry approach to asymmetric catalysis: solvent-free and highly concentrated reactions. Chem Rev 2007; 107:2503-45. [PMID: 17530908 PMCID: PMC2525622 DOI: 10.1021/cr0509556] [Citation(s) in RCA: 289] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Patrick J. Walsh
- P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34 Street, Philadelphia, Pennsylvania 19104-6323
| | - Hongmei Li
- P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34 Street, Philadelphia, Pennsylvania 19104-6323
| | - Cecilia Anaya de Parrodi
- Universidad de las Américas-Puebla, Departamento de Ciencias Químico Biológicas, Santa Catarina Mártir s/n, Cholula Puebla, 72820, México
| |
Collapse
|
42
|
|
43
|
N-Benzyl-l-prolinol: an efficient catalyst for the enantioselective addition of dialkylzinc reagents to N-(diphenylphosphinoyl)imines. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.03.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
44
|
Bisai A, Singh PK, Singh VK. Enantioselective diethylzinc addition to aldehydes catalyzed by Ti(IV) complex of unsymmetrical chiral bis(sulfonamide) ligands of trans-cyclohexane 1,2-diamine. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.11.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
45
|
Almansa R, Guijarro D, Yus M. Nickel-catalysed addition of dialkylzinc reagents to N-phosphinoyl- and N-sulfonylimines. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.11.056] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
46
|
Rozema MJ, Fickes M, McLaughlin M, Rohde B, McDermott T. Enantioselective synthesis of the farnesyltransferase inhibitor, A-345665.0. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
47
|
Kloetzing RJ, Krasovskiy A, Knochel P. The Mg-Oppenauer Oxidation as a Mild Method for the Synthesis of Aryl and Metallocenyl Ketones. Chemistry 2006; 13:215-27. [PMID: 17024705 DOI: 10.1002/chem.200600738] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Magnesium alkoxides undergo a hydride-transfer oxidation with benzaldehyde as the oxidant. This magnesium variant of the Oppenauer oxidation was used for the synthesis of polyfunctional biaryl ketones. LiCl was found to promote this reaction by enhancing the solubility of magnesium alkoxides. This mild oxidation method was especially useful for preparing ketones bearing a metallocenyl unit as well as various new ferrocenyl ketones and tricarbonylchromium complexes. This last class of ketones was reduced with the CBS catalyst (CBS=Corey-Bakshi-Shibata, diphenyl oxazaborolidine) to chiral benzhydrol complexes with high enantioselectivity enabling an asymmetric synthesis of electron-rich or -poor benzhydryl alcohols (up to 94 % ee).
Collapse
Affiliation(s)
- Ralf J Kloetzing
- Universität Zürich, Organisch-chemisches Institut, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | | | | |
Collapse
|
48
|
Jeon SJ, Li H, Walsh PJ. A Green Chemistry Approach to a More Efficient Asymmetric Catalyst: Solvent-Free and Highly Concentrated Alkyl Additions to Ketones. J Am Chem Soc 2005; 127:16416-25. [PMID: 16305227 DOI: 10.1021/ja052200m] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
There is a great demand for development of catalyst systems that are not only efficient and highly enantioselective but are also environmentally benign. Herein we report investigations into the catalytic asymmetric addition of alkyl and functionalized alkyl groups to ketones under highly concentrated and solvent-free conditions. In comparison with standard reaction conditions employing toluene and hexanes, the solvent-free and highly concentrated conditions permit reduction in catalyst loading by a factor of 2- to 40-fold. These new conditions are general and applicable to a variety of ketones and dialkylzinc reagents to provide diverse tertiary alcohols with high enantioselectivities. Using cyclic conjugated enones, we have performed a tandem asymmetric addition/diastereoselective epoxidation using the solvent-free addition conditions followed by introduction of a 5.5 M decane solution of tert-butyl hydroperoxide (TBHP) to generate epoxy alcohols. This one-pot procedure allows access to syn epoxy alcohols with three contiguous stereocenters with excellent enantio- and diastereoselectivities and high yields. Both the solvent-free asymmetric additions and asymmetric addition/diastereoselective epoxidation reactions have been conducted on larger scale (5 g substrate) with 0.5 mol % catalyst loadings. In these procedures, enantioselectivities equal to or better than 92% were obtained with isolated yields of 90%. The solvent-free and highly concentrated conditions are a significant improvement over previous solvent-based protocols. Further, this chemistry represents a rare example of a catalytic asymmetric reaction that is highly enantioselective under more environmentally friendly solvent-free conditions.
Collapse
Affiliation(s)
- Sang-Jin Jeon
- Department of Chemistry, P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | | | | |
Collapse
|
49
|
Jeon SJ, Li H, García C, LaRochelle LK, Walsh PJ. Catalytic Asymmetric Addition of Alkylzinc and Functionalized Alkylzinc Reagents to Ketones. J Org Chem 2004; 70:448-55. [PMID: 15651785 DOI: 10.1021/jo048683e] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe our full report of the catalytic asymmetric addition of simple and functionalized dialkylzinc reagents to a broad range of saturated ketones and enones. The functionalized organozinc reagents contain esters, silyl ethers, alkyl chlorides, and alkyl bromides. In general, the resulting tertiary alcohol products are isolated with high ee's. With some substrates, yields are low as a result of the formation of aldol byproducts. Most substrates undergo additions with good yields reaching as high as 91%.
Collapse
Affiliation(s)
- Sang-Jin Jeon
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA
| | | | | | | | | |
Collapse
|
50
|
Asymmetric Addition of Bis(homoally)zinc to the Propargyl Aldehyde Dicobalt Hexacarbonyl Complexes in the Presence of Chiral Disulfonamide Followed by Pauson-Khand Reaction. B KOREAN CHEM SOC 2004. [DOI: 10.5012/bkcs.2004.25.11.1621] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|