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Joshi H, Sathyamoorthi S. Hydroxyselenylation and Tethered Silanoxyselenylation of Allylic Silanols. J Org Chem 2022; 87:5017-5028. [PMID: 35294203 DOI: 10.1021/acs.joc.2c00119] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present protocols for the highly regioselective hydroxyselenylation and silanoxyselenylation of allylic silanols. N-(Phenylseleno)phthalimide acts as the selenylating agent for both transformations. Under basic conditions, hydroxyselenylation proceeds with >20:1 regioselectivity, and the products are valuable synthons for further transformations. We show that the silanol plays a critical role in maintaining the yield and regioselectivity of this reaction. Surprisingly, under acidic conditions, the hydroxyselenylation pathway is blocked, and products of a tethered silanoxyselenylation are exclusive.
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Affiliation(s)
- Harshit Joshi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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2
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Nagamalla S, Dhokale RA, Seidl FJ, Mague JT, Sathyamoorthi S. Unusual Rearrangement-Remercuration Reactions of Allylic Silanols. Org Chem Front 2021; 8:5361-5368. [PMID: 34868598 DOI: 10.1039/d1qo01008e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We present the first examples of rearrangement reactions of allylic silanol substrates into linear ketone and 5-membered cyclic silanediol organomercurial products. Both reactions are mediated by Hg(OTf)2 but differ in the use of base, solvent, and temperature. The substrate scope of both transformations was explored, and the product organomercurials were shown to be valuable synthons. Mechanistic studies suggest that both products are the result of a series of transformations, cascading in one pot. DFT analysis provides a basis for understanding the rearrangement of a 6-endo intermediate into the 5-exo cyclic silanediol product.
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Affiliation(s)
- Someshwar Nagamalla
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas, United States, 66047
| | - Ranjeet A Dhokale
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas, United States, 66047
| | | | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, Louisiana, United States, 70118
| | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas, United States, 66047
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3
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Dhokale RA, Seidl FJ, Shinde AH, Mague JT, Sathyamoorthi S. Tethered Silanoxyiodination of Alkenes. J Org Chem 2021; 86:9233-9243. [PMID: 34128664 DOI: 10.1021/acs.joc.1c00872] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We present the first examples of tethered silanoxyiodination reactions of allylic alcohols. The products are useful silanediol organoiodide synthons and are formed with high regioselectivity and diastereocontrol. The reaction is scalable greater than 10-fold without loss of yield or selectivity. Furthermore, the products are starting materials for further transformations, including deiodination, C-N bond installation, epoxide synthesis, and desilylation. DFT calculations provide a basis for understanding the exquisite 6-endo selectivity of this silanoxyiodination reaction and show that the observed products are both kinetically and thermodynamically preferred.
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Affiliation(s)
- Ranjeet A Dhokale
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | | | - Anand H Shinde
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, Louisiana, 70118, United States
| | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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4
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Abstract
We present the first examples of tethered olefin functionalization reactions using a silanol auxiliary. A range of allylic alcohols are readily condensed with di-tert-butylsilyl bis(trifluoromethanesulfonate) to form allylic silanols. When treated with Hg(OTf)2 and NaHCO3, these silanols easily transform into cyclic silanediol organomercurial compounds. In most cases, the reactions are exquisitely diastereoselective. The scale can be increased more than 10-fold without a loss of yield and selectivity. We demonstrate that the silanediols are versatile synthons for a variety of further reactions.
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Affiliation(s)
- Anand H Shinde
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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5
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Murata K, Takeshita H, Sakamoto K, Fuwa H. Tandem Three‐Component Synthesis of
syn
‐1,2‐ and
syn
‐1,3‐Diol Derivatives. Chem Asian J 2020; 15:807-819. [DOI: 10.1002/asia.201901660] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/24/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Keisuke Murata
- Department of Applied Chemistry Faculty of Science and EngineeringChuo University 1-13-27 Kasuga Bunkyo-ku, Tokyo 112-8551 Japan
| | - Hiroya Takeshita
- Department of Applied Chemistry Faculty of Science and EngineeringChuo University 1-13-27 Kasuga Bunkyo-ku, Tokyo 112-8551 Japan
| | - Keita Sakamoto
- Department of Applied Chemistry Faculty of Science and EngineeringChuo University 1-13-27 Kasuga Bunkyo-ku, Tokyo 112-8551 Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry Faculty of Science and EngineeringChuo University 1-13-27 Kasuga Bunkyo-ku, Tokyo 112-8551 Japan
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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.
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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
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7
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Sutivisedsak N, Dawadi S, Spilling CD. Trapping Hemiacetals with Phosphono Substituted Palladium π-Allyl Complexes for the Synthesis of Substituted Cyclic Ethers. Tetrahedron Lett 2015; 56:3534-3537. [PMID: 26236053 PMCID: PMC4518476 DOI: 10.1016/j.tetlet.2015.01.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Oxidation of hydroxy substituted phosphono allylic carbonates gave the aldehyde substituted phosphonates in good yield. Stereospecific palladium (0)-catalyzed cyclization in the presence of methanol or water gave acetal tetrahydrofuran and tetrahydropyran vinyl phosphonate products derived from hemiacetal trapping. The tetrahydrofuran acetals undergo Lewis acid catalyzed addition of nucleophiles to give diastereoisomeric mixtures of substituted tetrahydrofurans.
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Affiliation(s)
- Nongnuch Sutivisedsak
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri, 63121, USA
| | - Surendra Dawadi
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri, 63121, USA
| | - Christopher D. Spilling
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri, 63121, USA
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8
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Evans PA, Grisin A, Lawler MJ. Diastereoselective Construction of syn-1,3-Dioxanes via a Bismuth-Mediated Two-Component Hemiacetal/Oxa-Conjugate Addition Reaction. J Am Chem Soc 2012; 134:2856-9. [DOI: 10.1021/ja208668u] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- P. Andrew Evans
- Department of Chemistry, The University of Liverpool, Crown Street, Liverpool
L69 7ZD, United Kingdom
| | - Aleksandr Grisin
- Department of Chemistry, The University of Liverpool, Crown Street, Liverpool
L69 7ZD, United Kingdom
| | - Michael J. Lawler
- Department
of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington,
Indiana 47405, United States
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9
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Jiao Y, Cao C, Zhou Z. Direct Synthesis of anti-1,3-Diols through Nonclassical Reaction of Aryl Grignard Reagents with Isopropenyl Acetate. Org Lett 2010; 13:180-3. [DOI: 10.1021/ol102520y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yinchun Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China, Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan University of Science and Technology, China, and Hunan Provincial University Key Laboratory of QSAR/QSPR, China
| | - Chenzhong Cao
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China, Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan University of Science and Technology, China, and Hunan Provincial University Key Laboratory of QSAR/QSPR, China
| | - Zaichun Zhou
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China, Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan University of Science and Technology, China, and Hunan Provincial University Key Laboratory of QSAR/QSPR, China
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10
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Thanavaro A, Spilling CD. Formation of Cyclic Acetals from Allylic Hydroxy Phosphonates via Intramolecular Oxymercuration. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500212221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Anchalee Thanavaro
- a Department of Chemistry , University of Missouri-St. Louis , St. Louis , Missouri , USA
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11
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Acetti D, Brenna E, Fuganti C, Gatti FG, Malpezzi L, Serra S. Synthesis of L- and D-4,6-Dideoxyhexoses and 4,6-Dideoxy-C-phenylglycosides from Enzyme-Generated Products. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Bonini C, Chiummiento L, Funicello M, Lupattelli P, Videtta V. A first convergent synthesis of the polyolic fragment of the antifungal pentaene macrolide strevertene A. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Yadav J, Reddy MS, Prasad A. Stereoselective synthesis of polyketide precursors containing an anti-1,3-diol system via a Prins cyclisation and reductive cleavage sequence. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.05.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Yadav J, Reddy MS, Rao PP, Prasad A. Stereoselective synthesis of anti-1,3-diol units via Prins cyclisation: application to the synthesis of (−)-sedamine. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.04.102] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Khalaf JK, Datta A. An efficient and highly stereocontrolled route to bulgecinine hydrochloride. J Org Chem 2004; 69:387-90. [PMID: 14725451 DOI: 10.1021/jo035441q] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
(-)-Bulgecinine is a nonproteinogenic amino acid component present in bulgecins A, B, and C, antibiotic glycopeptides derived from Pseudomonas acidophila and Pseudomonas mesoacidophila. In combination with beta-lactam antibiotics, bulgecins exihibit a unique synergistic antibacterial activity against various Gram-negative microorganisms. Utilizing d-serine as a chiral template and employing a highly regio- and stereoselective intramolecular amidomercuration-oxidation protocol in the key pyrrolidine ring forming step, an efficient total synthetic route to enantiopure bulgecinine is reported herein.
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Affiliation(s)
- Juhienah K Khalaf
- Department of Medicinal Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, USA
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16
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Zacuto MJ, O'Malley SJ, Leighton JL. Tandem silylformylation–allyl(crotyl)silylation: a new approach to polyketide synthesis. Tetrahedron 2003. [DOI: 10.1016/j.tet.2003.04.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Abstract
The amido trioxadecalin ring system is a key structural component of the architecturally interesting anticancer and immunosuppressive agents of the mycalamide, theopederin, and onnamide families of natural products. We report a new entry into this structure in which a mixed acetal serves as a surrogate for a formaldehyde hemiacetal in an addition to an oxidatively generated acyliminium ion. The stereochemical outcome of this process can be explained by the conformational preferences of the product ring system. [reaction: see text]
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Affiliation(s)
- Jason C Rech
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
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18
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Miura K, Takahashi T, Nishikori H, Hosomi A. Acid-Catalyzed Cyclization of Vinylsilanes Bearing a Hemiacetal Group. CHEM LETT 2001. [DOI: 10.1246/cl.2001.958] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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