101
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Coleridge BM, Bello CS, Leitner A. General and user-friendly protocol for the synthesis of functionalized aryl- and heteroaryl-cyclopropanes by Negishi cross-coupling reactions. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.05.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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102
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Hussain MM, Li H, Hussain N, Ureña M, Carroll PJ, Walsh PJ. Applications of 1-alkenyl-1,1-heterobimetallics in the stereoselective synthesis of cyclopropylboronate esters, trisubstituted cyclopropanols and 2,3-disubstituted cyclobutanones. J Am Chem Soc 2009; 131:6516-24. [PMID: 19382808 PMCID: PMC2740478 DOI: 10.1021/ja900147s] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1-Alkenyl-1,1-heterobimetallics are potentially very useful in stereoselective organic synthesis but are relatively unexplored. Introduced herein is a practical application of 1-alkenyl-1,1-heterobimetallic intermediates in the synthesis of versatile cyclopropyl alcohol boronate esters, which are valuable building blocks. Thus, hydroboration of 1-alkynyl-1-boronate esters with dicyclohexylborane generates 1-alkenyl-1,1-diboro species. In situ transmetalation with dialkylzinc reagents furnishes 1-alkenyl-1,1-borozinc heterobimetallic intermediates. Addition of the more reactive ZnC bond to aldehydes generates the key B(pin) substituted allylic alkoxide intermediates. An in situ alkoxide directed cyclopropanation proceeds with the formation of two more CC bonds, affording cyclopropyl alcohol boronate esters with three new stereocenters in 58-89% isolated yields and excellent diastereoselectivities (>15:1 dr). Oxidation of the BC bond provides trisubstituted alpha-hydroxycyclopropyl carbinols as single diastereomers in good to excellent yields (75-93%). Facile pinacol-type rearrangement of the alpha-hydroxycyclopropyl carbinols provides access to both cis- and trans-2,3-disubstituted cyclobutanones with high stereoselectivity (>17:1 dr in most cases) from a common starting material. This methodology has been applied in the synthesis of quercus lactones A and B.
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Affiliation(s)
- Mahmud M. Hussain
- Contribution from the P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| | - Hongmei Li
- Contribution from the P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| | - Nusrah Hussain
- Contribution from the P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| | - Mercedes Ureña
- Contribution from the P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| | - Patrick J. Carroll
- Contribution from the P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
| | - Patrick J. Walsh
- Contribution from the P. Roy and Diana T. Vagelos Laboratories, University of Pennsylvania, Department of Chemistry, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323
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103
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Basato M, Tubaro C, Biffis A, Bonato M, Buscemi G, Lighezzolo F, Lunardi P, Vianini C, Benetollo F, Del Zotto A. Reactions of Diazo Compounds with Alkenes Catalysed by [RuCl(cod)(Cp)]: Effect of the Substituents in the Formation of Cyclopropanation or Metathesis Products. Chemistry 2009; 15:1516-26. [DOI: 10.1002/chem.200801211] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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104
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Lv J, Zhang J, Lin Z, Wang Y. Enantioselective Synthesis of Functionalized Nitrocyclopropanes by Organocatalytic Conjugate Addition of Bromonitroalkanes to α,β-Unsaturated Enones. Chemistry 2008; 15:972-9. [DOI: 10.1002/chem.200801651] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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105
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Matsubara H, Tsukida M, Yasuda S, Ryu I. Cyclopropanation of alkenes with CH2I2/Et3Al by the phase-vanishing method based on fluorous phase screen. J Fluor Chem 2008. [DOI: 10.1016/j.jfluchem.2008.06.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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106
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GAO JL, LIU YK, XUE S. Self-condensation of Terminal Acetylenic Ketones via Organozinc Species. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890305] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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107
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108
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Callens E, Burton AJ, White AJ, Barrett AG. Mechanistic study on benzylic oxidations catalyzed by bismuth(III) salts: X-ray structures of two bismuth–picolinate complexes. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.04.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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109
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Gagnon A, Duplessis M, Alsabeh P, Barabé F. Palladium-Catalyzed Cross-Coupling Reaction of Tricyclopropylbismuth with Aryl Halides and Triflates. J Org Chem 2008; 73:3604-7. [DOI: 10.1021/jo702377h] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexandre Gagnon
- Boehringer Ingelheim Canada Ltd., Research and Development, 2100 Cunard Street, Laval, Québec, Canada H7S 2G5
| | - Martin Duplessis
- Boehringer Ingelheim Canada Ltd., Research and Development, 2100 Cunard Street, Laval, Québec, Canada H7S 2G5
| | - Pamela Alsabeh
- Boehringer Ingelheim Canada Ltd., Research and Development, 2100 Cunard Street, Laval, Québec, Canada H7S 2G5
| | - Francis Barabé
- Boehringer Ingelheim Canada Ltd., Research and Development, 2100 Cunard Street, Laval, Québec, Canada H7S 2G5
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110
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Xiang X, Shen Q, Wang J, Zhu Z, Huang W, Zhou X. Utility of Dysprosium Diiodide and Metallic Dysprosium as Reductants in Cyclopropanation Reactions of Alkenes with Dichloromethane. Organometallics 2008. [DOI: 10.1021/om8000313] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xu Xiang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, People’s Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People’s Republic of China
| | - Quansheng Shen
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, People’s Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People’s Republic of China
| | - Jialiang Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, People’s Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People’s Republic of China
| | - Zhenyu Zhu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, People’s Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People’s Republic of China
| | - Wen Huang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, People’s Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People’s Republic of China
| | - Xigeng Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, People’s Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People’s Republic of China
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111
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Barbero A, Pulido FJ, Sañudo MC. Allylsilanes in the synthesis of three to seven membered rings: the silylcuprate strategy. Beilstein J Org Chem 2007; 3:16. [PMID: 17519004 PMCID: PMC1894809 DOI: 10.1186/1860-5397-3-16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2007] [Accepted: 05/22/2007] [Indexed: 11/29/2022] Open
Abstract
Addition of low order phenyldimethylsilylcyanocuprates to allenes followed by "in situ" reaction of the intermediate silylcuprate with electrophiles ("the silylcuprate strategy") provides new routes for the synthesis of functionalised allylsilanes, which undergo highly stereocontrolled silicon-assisted intramolecular cyclizations leading to three to seven membered ring-formation.
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Affiliation(s)
- Asunción Barbero
- Departamento de Química Orgánica, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Francisco J Pulido
- Departamento de Química Orgánica, Universidad de Valladolid, 47011 Valladolid, Spain
| | - M Carmen Sañudo
- Departamento de Química Orgánica, Universidad de Valladolid, 47011 Valladolid, Spain
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112
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Du H, Long J, Shi Y. Catalytic asymmetric Simmons-Smith cyclopropanation of silyl enol ethers. Efficient synthesis of optically active cyclopropanol derivatives. Org Lett 2007; 8:2827-9. [PMID: 16774267 DOI: 10.1021/ol0609659] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] This paper describes a catalytic asymmetric Simmons-Smith cyclopropanation of silyl enol ethers using dipeptide 2 as the ligand. A variety of optically active cyclopropyl silyl ethers can be obtained in high yields. Up to 96% ee was obtained. The dipeptide can be recovered after the reaction in good yield and reused without the loss of reactivity or enantioselectivity.
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Affiliation(s)
- Haifeng Du
- Department of Chemistry, Colorado State University, Fort Collins, 80523, USA
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113
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Davies SG, Ling KB, Roberts PM, Russell AJ, Thomson JE. Diastereoselective Simmons–Smith cyclopropanations of allylic amines and carbamates. Chem Commun (Camb) 2007:4029-31. [PMID: 17912405 DOI: 10.1039/b711358g] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclopropanation of 3-(N,N-dibenzylamino)cyclohexene with either Zn(CH(2)I)(2)(Wittig-Furukawa reagent) or CF(3)CO(2)ZnCH(2)I (Shi's reagent) gives the corresponding syn-cyclopropane as a single diastereoisomer, whilst cyclopropanation of 3-(N-tert-butoxycarbonylamino)cyclohexene with CF(3)CO(2)ZnCH(2)I gives the corresponding anti-cyclopropane exclusively; facile N-deprotection gives access to either diastereoisomer of the trifluoroacetic acid salt of 2-aminobicyclo[4.1.0]heptane.
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Affiliation(s)
- Stephen G Davies
- Department of Organic Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, UK OX1 3TA.
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114
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Voituriez A, Charette A. Enantioselective Cyclopropanation with TADDOL-Derived Phosphate Ligands. Adv Synth Catal 2006. [DOI: 10.1002/adsc.200600351] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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115
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Trifluoromethylated amino alcohol as chiral auxiliary for highly diastereoselective and fast Simmons–Smith cyclopropanation of allylic amine. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.04.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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116
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Xue S, Li LZ, Liu YK, Guo QX. Zinc-Mediated Chain Extension Reaction of 1,3-Diketones to 1,4-Diketones and Diastereoselective Synthesis of trans-1,2-Disubstituted Cyclopropanols. J Org Chem 2005; 71:215-8. [PMID: 16388638 DOI: 10.1021/jo051950b] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] A variety of 1,3-diketones can be efficiently converted into the corresponding 1,4-diketones and trans-1,2-disubstituted cyclopropanols by using organozinc species in one-pot reactions. It was found that 2.3 equiv of CF3CO2ZnCH2I was effective to give the corresponding chain-extended products in 44-85% yields, while a mixture of organozinc species formed from 4.0 equiv of Et2Zn, 2.0 equiv of CF3CO2H, and 4.0 equiv of CH2I2 resulted in the formation of trans-1,2-disubstituted cyclopropanols with quite good yields and diastereoselectivity.
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Affiliation(s)
- Song Xue
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, People's Republic of China.
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117
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Xue S, Liu YK, Li LZ, Guo QX. Zinc-Mediated Ring-Expansion and Chain-Extension Reactions of β-Keto Esters. J Org Chem 2005; 70:8245-7. [PMID: 16277361 DOI: 10.1021/jo0512498] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[Chemical reaction: see text] The reaction of cyclic beta-keto esters with CF3CO2ZnCH2I provided the corresponding ring-expanded products in moderate to good yields. Although alpha-substituted acyclic beta-keto esters reacted with much less efficient, chain-extension reaction of simple beta-keto esters also proceeded effectively to generate gamma-keto esters in high yields.
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Affiliation(s)
- Song Xue
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
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118
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119
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Virender, Jain SL, Sain B. Indium-mediated, highly efficient cyclopropanation of olefins using CH2I2 as methylene transfer reagent. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2004.11.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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