51
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Ito M, Kondo Y, Nambu H, Anada M, Takeda K, Hashimoto S. Diastereo- and enantioselective intramolecular 1,6-C–H insertion reactions of α-diazo esters catalyzed by chiral dirhodium(II) carboxylates. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.125] [Citation(s) in RCA: 13] [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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52
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Divergent pathways of β,γ-unsaturated α-diazocarbonyl compounds catalyzed by dirhodium and Lewis acids catalysts separately or in combination. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2014.12.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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53
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Cui X, Xu X, Jin LM, Wojtas L, Zhang XP. Stereoselective Radical C-H Alkylation with Acceptor/Acceptor-Substituted Diazo Reagents via Co(II)-Based Metalloradical Catalysis. Chem Sci 2015; 6:1219-1224. [PMID: 25685314 PMCID: PMC4324598 DOI: 10.1039/c4sc02610a] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 11/12/2014] [Indexed: 11/21/2022] Open
Abstract
Co(II)-based metalloradical catalysis has been, for the first time, successfully applied for asymmetric intramolecular C-H alkylation of acceptor/acceptor-substituted diazo reagents. Through the design and synthesis of a new D2-symmetric chiral amidoporphyrin as the supporting ligand, the Co(II)-based metalloradical system, which operates at room temperature, is capable of 1,5-C-H alkylation of α-methoxycarbonyl-α-diazosulfones with a broad range of electronic properties, providing the 5-membered sulfolane derivatives in high yields with excellent diastereoselectivity and enantioselectivity. In addition to complete chemoselectivity toward allylic and allenic C-H bonds, the Co(II)-based metalloradical catalysis for asymmetric C-H alkylation features a remarkable degree of functional group tolerance.
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Affiliation(s)
- Xin Cui
- Department of Chemistry , University of South Florida Tampa , FL 33620-5250 , USA . ; Fax: +1 813-974-1733 ; Tel: +1 813-974-7249
| | - Xue Xu
- Department of Chemistry , University of South Florida Tampa , FL 33620-5250 , USA . ; Fax: +1 813-974-1733 ; Tel: +1 813-974-7249
| | - Li-Mei Jin
- Department of Chemistry , University of South Florida Tampa , FL 33620-5250 , USA . ; Fax: +1 813-974-1733 ; Tel: +1 813-974-7249
| | - Lukasz Wojtas
- Department of Chemistry , University of South Florida Tampa , FL 33620-5250 , USA . ; Fax: +1 813-974-1733 ; Tel: +1 813-974-7249
| | - X. Peter Zhang
- Department of Chemistry , University of South Florida Tampa , FL 33620-5250 , USA . ; Fax: +1 813-974-1733 ; Tel: +1 813-974-7249
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54
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Xu X, Deng Y, Yim DN, Zavalij PY, Doyle MP. Enantioselective cis-β-lactam synthesis by intramolecular C-H functionalization from enoldiazoacetamides and derivative donor-acceptor cyclopropenes. Chem Sci 2015; 6:2196-2201. [PMID: 26029355 PMCID: PMC4444070 DOI: 10.1039/c4sc03991b] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
β-Lactam derivatives are produced through donor–acceptor cyclopropene intermediates in high yield with exclusive cis-diastereoselectivity, and high enantiocontrol.
β-Lactam derivatives are produced through intermediate donor–acceptor cyclopropene intermediates in high yield, exclusive cis-diastereoselectivity, and high enantiocontrol in a chiral dirhodium carboxylate catalyzed intramolecular C–H functionalization reaction of enoldiazoacetamides.
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Affiliation(s)
- Xinfang Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China. Tel: +86 0512 65883612
| | - Yongming Deng
- Department of Chemistry and Biochemistry University of Maryland, College Park, Maryland 20742
| | - David N Yim
- Department of Chemistry and Biochemistry University of Maryland, College Park, Maryland 20742
| | - Peter Y Zavalij
- Department of Chemistry and Biochemistry University of Maryland, College Park, Maryland 20742
| | - Michael P Doyle
- Department of Chemistry and Biochemistry University of Maryland, College Park, Maryland 20742
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55
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Soldi C, Lamb KN, Squitieri RA, González-López M, Di Maso MJ, Shaw JT. Enantioselective intramolecular C-H insertion reactions of donor-donor metal carbenoids. J Am Chem Soc 2014; 136:15142-5. [PMID: 25308822 PMCID: PMC4227726 DOI: 10.1021/ja508586t] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
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The
first asymmetric insertion reactions of donor–donor
carbenoids, i.e., those with no pendant electron-withdrawing groups,
are reported. This process enables the synthesis of densely substituted
benzodihydrofurans with high levels of enantio- and diastereoselectivity.
Preliminary results show similar efficiency in the preparation of
indanes. This new method is used in the first enantioselective synthesis
of an oligoresveratrol natural product (E-δ-viniferin).
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Affiliation(s)
- Cristian Soldi
- Department of Chemistry, University of California , One Shields Avenue, Davis, California 95616, United States
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56
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Clarke LA, Ring A, Ford A, Sinha AS, Lawrence SE, Maguire AR. Enantioselective copper catalysed C–H insertion reaction of 2-sulfonyl-2-diazoacetamides to form γ-lactams. Org Biomol Chem 2014; 12:7612-28. [DOI: 10.1039/c4ob01430h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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57
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Cai Y, Lyu H, Yu C, Miao Z. Unexpected Stereoselective Synthesis of (Z)-β-Alkenyl Substituted β-Amino Phosphonates through β,γ-Dihydrogen Shift Reaction Catalyzed by a Copper(I) Complex and Iodine [Cu(MeCN)4]PF6/I2. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300838] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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58
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Cai Y, Ge H, Yu C, Sun W, Zhan J, Miao Z. Regiospecific and highly stereoselective synthesis of β-amino (Z)-enylphosphonates via β-hydrogen migration reaction of dialkyl α-diazophosphonates catalyzed by AgOTf. RSC Adv 2014. [DOI: 10.1039/c4ra02520b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The diazo decomposition of dialkyl α-diazophosphonates in the presence of AgOTf provides an efficient one-step route to a variety of β-amino (Z)-enylphosphonates in good yields with complete control over regio- and stereochemistry.
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Affiliation(s)
- Yan Cai
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Haihong Ge
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Chengbin Yu
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Weize Sun
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Junchen Zhan
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
| | - Zhiwei Miao
- State Key Laboratory of Elemento-Organic Chemistry
- Institute of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
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59
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Zheng C, You SL. Recent development of direct asymmetric functionalization of inert C–H bonds. RSC Adv 2014. [DOI: 10.1039/c3ra46996d] [Citation(s) in RCA: 468] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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60
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Xu X, Doyle MP. Recent Developments in the Synthetic Uses of Silyl-protected Enoldiazoacetates for Heterocyclic Syntheses. Aust J Chem 2014. [DOI: 10.1071/ch13576] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Diazo compounds have been used as precursors to a wide variety of heterocyclic compounds that represent the core structural subunits in many biologically active compounds. Various methodologies have been established for their synthesis via metal-catalyzed carbene transformations. Although the advantages of vinyldiazoacetates have been known for many years, realization of the synthetic use of enoldiazoacetates has been more recent. This review covers advances in the utility of silyl-protected enoldiazoacetates in heterocycle syntheses that include X–H insertion reactions, ylide rearrangements, formal [3+3]- and [4+3]-cycloaddition reactions, and other traditional and unusual metal carbene transformations.
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61
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Hashimoto T, Yamamoto K, Maruoka K. Catalytic enantioselective intramolecular cyclization of N-aryl diazoamides using a titanium–BINOLate complex. Chem Commun (Camb) 2014; 50:3220-3. [DOI: 10.1039/c3cc49837a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic enantioselective intramolecular cyclization of N-aryl diazoamides was achieved by using titanium–BINOLate as a chiral Lewis acid-assisted Brønsted acid.
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Affiliation(s)
- Takuya Hashimoto
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto, Japan
| | - Kumiko Yamamoto
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto, Japan
| | - Keiji Maruoka
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto, Japan
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62
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2011. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.05.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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63
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Shanahan CS, Truong P, Mason SM, Leszczynski JS, Doyle MP. Diazoacetoacetate enones for the synthesis of diverse natural product-like scaffolds. Org Lett 2013; 15:3642-5. [PMID: 23829448 PMCID: PMC3806194 DOI: 10.1021/ol4015199] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Diazoacetoacetate enones are a new class of Michael acceptors that enable the efficient construction of natural product-like scaffolds. Through their Michael addition reactions, including those with silyl enol ethers, indoles, pyrroles, and amines, δ-functionalized diazoacetoacetates are formed in high yield and with overall operational efficiency. Subsequent catalytic dinitrogen extrusion reactions provide access to a diverse series of natural product-like carbo- and heterocyclic ring systems in only three steps from commercial materials.
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Affiliation(s)
- Charles S. Shanahan
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - Phong Truong
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - Savannah M. Mason
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - John S. Leszczynski
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - Michael P. Doyle
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
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64
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Wang JC, Zhang Y, Xu ZJ, Lo VKY, Che CM. Enantioselective Intramolecular Carbene C–H Insertion Catalyzed by a Chiral Iridium(III) Complex of D4-Symmetric Porphyrin Ligand. ACS Catal 2013. [DOI: 10.1021/cs4001656] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jing-Cui Wang
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, 354 Feng Ling Road, Shanghai, China
| | - Yan Zhang
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, 354 Feng Ling Road, Shanghai, China
| | - Zhen-Jiang Xu
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, 354 Feng Ling Road, Shanghai, China
| | - Vanessa Kar-Yan Lo
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053, China
| | - Chi-Ming Che
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, 354 Feng Ling Road, Shanghai, China
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053, China
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65
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Lee SI, Kang BC, Hwang GS, Ryu DH. Catalytic Carbon Insertion into the β-Vinyl C–H Bond of Cyclic Enones with Alkyl Diazoacetates. Org Lett 2013; 15:1428-31. [DOI: 10.1021/ol4000026] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sung Il Lee
- Department of Chemistry, Sungkyunkwan University, Suwon, 440-746, Korea, and Korea Basic Science Institute, Seoul, 136-713, Korea
| | - Byung Chul Kang
- Department of Chemistry, Sungkyunkwan University, Suwon, 440-746, Korea, and Korea Basic Science Institute, Seoul, 136-713, Korea
| | - Geum-Sook Hwang
- Department of Chemistry, Sungkyunkwan University, Suwon, 440-746, Korea, and Korea Basic Science Institute, Seoul, 136-713, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, Suwon, 440-746, Korea, and Korea Basic Science Institute, Seoul, 136-713, Korea
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66
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Archambeau A, Miege F, Meyer C, Cossy J. Highly Efficient Stereoselective Catalytic C(sp3)H Insertions with Donor Rhodium Carbenoids Generated from Cyclopropenes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205913] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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67
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Archambeau A, Miege F, Meyer C, Cossy J. Highly Efficient Stereoselective Catalytic C(sp3)H Insertions with Donor Rhodium Carbenoids Generated from Cyclopropenes. Angew Chem Int Ed Engl 2012; 51:11540-4. [DOI: 10.1002/anie.201205913] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Indexed: 11/07/2022]
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68
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Xu X, Shabashov D, Zavalij PY, Doyle MP. Substrate-dependent divergent outcomes from catalytic reactions of silyl-protected enol diazoacetates with nitrile oxides: azabicyclo[3.1.0]hexanes or 5-arylaminofuran-2(3H)-ones. J Org Chem 2012; 77:5313-7. [PMID: 22621315 PMCID: PMC3377374 DOI: 10.1021/jo3006733] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Dirhodium(II)-catalyzed reactions of silyl-protected enol diazoacetates with nitrile oxides exhibit high nitrile oxide substituent dependence in the production rearrangement products via dipolar cycloaddition and either the Neber rearrangement or the Lossen rearrangement.
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Affiliation(s)
- Xinfang Xu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - Dmitry Shabashov
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - Peter Y. Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - Michael P. Doyle
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
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69
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Schnaars C, Hansen T. Halodiazophosphonates, a New Class of Diazo Compounds for the Diastereoselective Intermolecular Rh(II) Catalyzed Cyclopropanation. Org Lett 2012; 14:2794-7. [DOI: 10.1021/ol3010276] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christian Schnaars
- Department of Chemistry, University of Oslo, Sem Sælands vei 26, N-0315 Oslo, Norway
| | - Tore Hansen
- Department of Chemistry, University of Oslo, Sem Sælands vei 26, N-0315 Oslo, Norway
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70
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Lindsay VNG, Charette AB. Design and Synthesis of Chiral Heteroleptic Rhodium(II) Carboxylate Catalysts: Experimental Investigation of Halogen Bond Rigidification Effects in Asymmetric Cyclopropanation. ACS Catal 2012. [DOI: 10.1021/cs300214v] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vincent N. G. Lindsay
- Centre in Green Chemistry
and Catalysis, Department
of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec,
Canada H3C 3J7
| | - André B. Charette
- Centre in Green Chemistry
and Catalysis, Department
of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec,
Canada H3C 3J7
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71
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Thrun F, Butschke B, Graening T. A new dirhodium catalyst with hemilabile tropolonato ligands for C-H bond functionalization. Chemistry 2012; 18:4854-8. [PMID: 22431074 DOI: 10.1002/chem.201102427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Indexed: 11/09/2022]
Abstract
Don't hold on too tightly! In a new dirhodium catalyst for C-H functionalization reactions, two tropolonato ligands are introduced as hemilabile chelating ligands (see scheme). Only two bridges hold the Rh-Rh core together. The tropolonato ligands can liberate a binding site in the equatorial coordination sphere of the catalyst. This opens a doorway to new mechanistic channels in C-H functionalization.
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Affiliation(s)
- Frauke Thrun
- Institut für Chemie, TU Berlin-Berlin University of Technology, Strasse des 17. Juni 135, 10623 Berlin, Germany
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72
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Trindade AF, Coelho JAS, Afonso CAM, Veiros LF, Gois PMP. Fine Tuning of Dirhodium(II) Complexes: Exploring the Axial Modification. ACS Catal 2012. [DOI: 10.1021/cs200597a] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexandre F. Trindade
- CQFM, Centro
de Química-Física
Molecular and IN-Institute of Nanosciences and Nanotechnology, Instituto Superior Técnico, 1049-001 Lisboa,
Portugal
- Research Institute
for Medicines
and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Avenida Prof. Gama Pinto, 1649-003
Lisbon, Portugal
| | - Jaime A. S. Coelho
- Research Institute
for Medicines
and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Avenida Prof. Gama Pinto, 1649-003
Lisbon, Portugal
| | - Carlos A. M. Afonso
- Research Institute
for Medicines
and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Avenida Prof. Gama Pinto, 1649-003
Lisbon, Portugal
| | - Luis F. Veiros
- CQE, Departamento
de Engenharia
Química e Biológica, Complexo I, Instituto Superior
Técnico, Universidade Técnica de Lisboa, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Pedro M. P. Gois
- Research Institute
for Medicines
and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Avenida Prof. Gama Pinto, 1649-003
Lisbon, Portugal
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73
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Zhao X, Zhang Y, Wang J. Recent developments in copper-catalyzed reactions of diazo compounds. Chem Commun (Camb) 2012; 48:10162-73. [DOI: 10.1039/c2cc34406h] [Citation(s) in RCA: 294] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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74
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Hashimoto S, Goto T, Onozuka T, Kosaka Y, Anada M, Takeda K. CATALYTIC ASYMMETRIC INTERMOLECULAR C–H INSERTION OF 1,4-CYCLOHEXADIENE WITH α-ALKYL-α-DIAZOESTERS USING CHIRAL DIRHODIUM(II) CARBOXYLATES. HETEROCYCLES 2012. [DOI: 10.3987/com-12-s(n)120] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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