1001
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Boultadakis-Arapinis M, Prost E, Gandon V, Lemoine P, Turcaud S, Micouin L, Lecourt T. Carbene-Mediated Functionalization of the Anomeric CH Bond of Carbohydrates: Scope and Limitations. Chemistry 2013; 19:6052-66. [DOI: 10.1002/chem.201203725] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Indexed: 11/06/2022]
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1002
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Zhang Y, Liu S, Yu W, Hu M, Zhang G, Yu Y. Palladium-catalyzed synthesis of 3-alkenyl indoles from 2-azido-3-arylacrylates and terminal alkenes at room temperature. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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1003
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Johnson DG, Lynam JM, Mistry NS, Slattery JM, Thatcher RJ, Whitwood AC. Ruthenium-Mediated C–H Functionalization of Pyridine: The Role of Vinylidene and Pyridylidene Ligands. J Am Chem Soc 2013; 135:2222-34. [DOI: 10.1021/ja3097256] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- David G. Johnson
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Jason M. Lynam
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Neetisha S. Mistry
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - John M. Slattery
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Robert J. Thatcher
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Adrian C. Whitwood
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
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1004
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Cheng XF, Li Y, Su YM, Yin F, Wang JY, Sheng J, Vora HU, Wang XS, Yu JQ. Pd(II)-catalyzed enantioselective C-H activation/C-O bond formation: synthesis of chiral benzofuranones. J Am Chem Soc 2013; 135:1236-9. [PMID: 23305171 PMCID: PMC3578945 DOI: 10.1021/ja311259x] [Citation(s) in RCA: 286] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Pd(II)-catalyzed enantioselective C-H activation of phenylacetic acids followed by an intramolecular C-O bond formation afforded chiral benzofuranones. This reaction provides the first example of enantioselecctive C-H functionalizations through Pd(II)/Pd(IV) redox catalysis.
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Affiliation(s)
- Xiu-Fen Cheng
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yan Li
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yi-Ming Su
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Feng Yin
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Jian-Yong Wang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Jie Sheng
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Harit U. Vora
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Xi-Sheng Wang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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1005
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Hansmann MM, Rudolph M, Rominger F, Hashmi ASK. Mechanistic switch in dual gold catalysis of diynes: C(sp(3))-H activation through bifurcation--vinylidene versus carbene pathways. Angew Chem Int Ed Engl 2013; 52:2593-8. [PMID: 23362151 DOI: 10.1002/anie.201208777] [Citation(s) in RCA: 192] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Indexed: 01/21/2023]
Abstract
The other side of the mountain: Changing the framework of diyne systems opens up new cyclization modes for dual gold catalysis. Instead of a 5-endo cyclization and gold vinylidenes a 6-endo cyclization gives rise to gold-stabilized carbenes as key intermediates for selective C-H insertions.
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Affiliation(s)
- Max M Hansmann
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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1006
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Hansmann MM, Rudolph M, Rominger F, Hashmi ASK. Mechanistisches Umschalten bei der dualen Goldkatalyse von Diinen: C(sp3)-H-Aktivierung über Bifurkation - Vinyliden- versus Carbenreaktionswege. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208777] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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1007
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Gómez L, Canta M, Font D, Prat I, Ribas X, Costas M. Regioselective Oxidation of Nonactivated Alkyl C–H Groups Using Highly Structured Non-Heme Iron Catalysts. J Org Chem 2013; 78:1421-33. [DOI: 10.1021/jo302196q] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Laura Gómez
- QBIS Research Group, Departament de Quı́mica, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia,
Spain
| | - Mercè Canta
- QBIS Research Group, Departament de Quı́mica, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia,
Spain
| | - David Font
- QBIS Research Group, Departament de Quı́mica, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia,
Spain
| | - Irene Prat
- QBIS Research Group, Departament de Quı́mica, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia,
Spain
| | - Xavi Ribas
- QBIS Research Group, Departament de Quı́mica, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia,
Spain
| | - Miquel Costas
- QBIS Research Group, Departament de Quı́mica, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia,
Spain
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1008
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Durrell AC, Jackson MN, Hazari N, Gray HB. Making Carbon–Chlorine Bonds by Dipalladium Electrocatalysis. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201498] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alec C. Durrell
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, USA, http://www.bilrc.caltech.edu
| | - Megan N. Jackson
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, USA, http://www.bilrc.caltech.edu
| | - Nilay Hazari
- Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, USA
| | - Harry B. Gray
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, USA, http://www.bilrc.caltech.edu
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1009
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Zhou B, Chen H, Wang C. Mn-Catalyzed Aromatic C–H Alkenylation with Terminal Alkynes. J Am Chem Soc 2013; 135:1264-7. [DOI: 10.1021/ja311689k] [Citation(s) in RCA: 265] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Bingwei Zhou
- Beijing
National Laboratory of Molecular Sciences, CAS Key Laboratory
of Molecular Recognition and Function, ‡CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hui Chen
- Beijing
National Laboratory of Molecular Sciences, CAS Key Laboratory
of Molecular Recognition and Function, ‡CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Congyang Wang
- Beijing
National Laboratory of Molecular Sciences, CAS Key Laboratory
of Molecular Recognition and Function, ‡CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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1010
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DeLuca RJ, Sigman MS. The palladium-catalyzed anti-Markovnikov hydroalkylation of allylic alcohol derivatives. Org Lett 2013; 15:92-5. [PMID: 23252845 PMCID: PMC3539300 DOI: 10.1021/ol303129p] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A palladium-catalyzed hydroalkylation reaction of protected allylic alcohols using alkylzinc bromide reagents is reported. This account includes numerous allylic, homoallylic, and bishomoallylic alcohol derivatives, all with a uniform selectivity of >20:1 for the anti-Markovnikov product. The reaction features the ability to deliver enantiomerically enriched alcohols in unfunctionalized regions, which results from the catalyst avoiding β-hydride elimination at the allylic position.
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Affiliation(s)
- Ryan J. DeLuca
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
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1011
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Matsuda T, Tomaru Y, Matsuda Y. Synthesis of phthalazinones via palladium(ii)-catalysed intramolecular oxidative C–H/C–H cross-coupling of N′-methylenebenzohydrazides. Org Biomol Chem 2013; 11:2084-7. [DOI: 10.1039/c3ob40195b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1012
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Kanai M, Matsunaga S, Oisaki K, Shimizu Y. From Chiral Base Catalysts to Redox-Active Catalysts: Chasing the Identity of Metal Catalysts in Carbon-Carbon Bond-Forming Reactions. J SYN ORG CHEM JPN 2013. [DOI: 10.5059/yukigoseikyokaishi.71.433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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1013
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Chen FJ, Zhao S, Hu F, Chen K, Zhang Q, Zhang SQ, Shi BF. Pd(ii)-catalyzed alkoxylation of unactivated C(sp3)–H and C(sp2)–H bonds using a removable directing group: efficient synthesis of alkyl ethers. Chem Sci 2013. [DOI: 10.1039/c3sc51993g] [Citation(s) in RCA: 261] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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1014
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Wen ZK, Xu YH, Loh TP. Palladium(ii)-catalyzed cross-coupling of simple alkenes with acrylates: a direct approach to 1,3-dienes through C–H activation. Chem Sci 2013. [DOI: 10.1039/c3sc52275j] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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1015
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Oisaki K, Abe J, Kanai M. Manganese-catalyzed aerobic dehydrogenative cyclization toward ring-fused indole skeletons. Org Biomol Chem 2013; 11:4569-72. [DOI: 10.1039/c3ob40855h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1016
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Dong Y, Liu G. Rh-catalyzed sulfonic acid group directed ortho C–H olefination of arenes. Chem Commun (Camb) 2013; 49:8066-8. [DOI: 10.1039/c3cc44690e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1017
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Lyall CL, Uosis-Martin M, Lowe JP, Mahon MF, Pantoş GD, Lewis SE. Aliphatic C–H activation with aluminium trichloride–acetyl chloride: expanding the scope of the Baddeley reaction for the functionalisation of saturated hydrocarbons. Org Biomol Chem 2013; 11:1468-75. [DOI: 10.1039/c2ob26765a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1018
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Lang S. Unravelling the labyrinth of palladium-catalysed reactions involving isocyanides. Chem Soc Rev 2013; 42:4867-80. [DOI: 10.1039/c3cs60022j] [Citation(s) in RCA: 267] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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1019
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Chen K, Hu F, Zhang SQ, Shi BF. Pd(ii)-catalyzed alkylation of unactivated C(sp3)–H bonds: efficient synthesis of optically active unnatural α-amino acids. Chem Sci 2013. [DOI: 10.1039/c3sc51747k] [Citation(s) in RCA: 187] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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1020
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Kapdi AR, Karbelkar A, Naik M, Pednekar S, Fischer C, Schulzke C, Tromp M. Efficient synthesis of coumarin-based tetra and pentacyclic rings using phospha-palladacycles. RSC Adv 2013. [DOI: 10.1039/c3ra43821j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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1021
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Yan X, Fang K, Liu H, Xi C. Copper-catalyzed oxidation of arene-fused cyclic amines to cyclic imides. Chem Commun (Camb) 2013; 49:10650-2. [DOI: 10.1039/c3cc45869e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1022
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Owens CP, Varela-Álvarez A, Boyarskikh V, Musaev DG, Davies HML, Blakey SB. Iridium(iii)-bis(oxazolinyl)phenyl catalysts for enantioselective C–H functionalization. Chem Sci 2013. [DOI: 10.1039/c3sc50886b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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1023
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Gigant N, Chausset-Boissarie L, Belhomme MC, Poisson T, Pannecoucke X, Gillaizeau I. Copper-catalyzed direct arylation of cyclic enamides using diaryliodonium salts. Org Lett 2012; 15:278-81. [PMID: 23272978 DOI: 10.1021/ol303400s] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A convenient method for the copper(II)-catalyzed direct arylation of cyclic and nonaromatic enamides using diaryliodonium salts has been developed. The reaction demonstrates large functional group tolerance, good yields, and total regioselectivity with a C(3)-functionalization. The synthetic potential of this coupling was explored by using a range of readily accessible diaryliodonium salts and enamides.
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Affiliation(s)
- Nicolas Gigant
- Institut de Chimie Organique et Analytique, UMR 7311 CNRS, rue de Chartres, Université d'Orléans, F-45067 Orléans Cedex 2, France
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1024
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Samanta R, Narayan R, Antonchick AP. Rhodium(III)-Catalyzed Direct Oxidative Cross Coupling at the C5 Position of Chromones with Alkenes. Org Lett 2012. [DOI: 10.1021/ol303067f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Rajarshi Samanta
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
| | - Rishikesh Narayan
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
| | - Andrey P. Antonchick
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
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1025
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Brimble MA, Haym I, Sperry J, Furkert DP. Synthesis of the Tetracyclic Core of Berkelic Acid Using Gold(I)-Catalyzed Hydroarylation and Oxidative Radical Cyclizations. Org Lett 2012. [DOI: 10.1021/ol302536j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Margaret A. Brimble
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Isabell Haym
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Daniel P. Furkert
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, New Zealand
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1026
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Domingo V, Lorenzo L, Quilez del Moral JF, Barrero AF. First synthesis of (+)-myrrhanol C, an anti-prostate cancer lead. Org Biomol Chem 2012; 11:559-62. [PMID: 23147747 DOI: 10.1039/c2ob26947c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first synthesis of (+)-myrrhanol C (1), an antitumor polypodane-type bicyclic triterpene with inhibitory activity against androgen insensitive prostate cancers, is reported herein (IC(50) 10 μmolar). A key step in our convergent synthesis of (+)-myrrhanol C and related analogues is the employment of a microbial stereo- and regioselective late stage C-H oxidation. A low-waste and sustainable process has been developed to prepare (+)-myrrhanol C for further biological studies.
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Affiliation(s)
- Victoriano Domingo
- Department of Organic Chemistry, Institute of Biotechnology, Faculty of Sciences, University of Granada, Campus de Fuente Nueva, s/n, 18071 Granada, Spain.
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1027
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Kim YW, Niphakis MJ, Georg GI. Copper-assisted palladium(II)-catalyzed direct arylation of cyclic enaminones with arylboronic acids. J Org Chem 2012; 77:9496-503. [PMID: 23088256 DOI: 10.1021/jo301531k] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Described herein is a palladium(II)-catalyzed direct arylation of cyclic enaminones with arylboronic acids. The versatility of this method is that both electron-rich and electron-poor boronic acids can be coupled in high yields. A mixture of two Cu(II) additives was crucial for efficient cross-coupling. The role of each Cu(II) reagent appears to be distinct and complementary serving to assist catalyst reoxidation and transmetalation through a putative arylcopper intermediate.
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Affiliation(s)
- Yong Wook Kim
- Department of Chemistry, and the Institute for Therapeutics Discovery and Development, University of Minnesota, 717 Delaware Street SE, Minneapolis, Minnesota 55414, United States
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1028
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Piou T, Neuville L, Zhu J. Activation of a C(sp3)H Bond by a Transient σ-Alkylpalladium(II) Complex: Synthesis of Spirooxindoles Through a Palladium-Catalyzed Domino Carbopalladation/C(sp3)C(sp3) Bond-Forming Process. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206267] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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1029
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Piou T, Neuville L, Zhu J. Activation of a C(sp3)H Bond by a Transient σ-Alkylpalladium(II) Complex: Synthesis of Spirooxindoles Through a Palladium-Catalyzed Domino Carbopalladation/C(sp3)C(sp3) Bond-Forming Process. Angew Chem Int Ed Engl 2012; 51:11561-5. [DOI: 10.1002/anie.201206267] [Citation(s) in RCA: 170] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Indexed: 11/07/2022]
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1030
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Wen ZK, Xu YH, Loh TP. Palladium-Catalyzed Cross-Coupling of Unactivated Alkenes with Acrylates: Application to the Synthesis of the C13-C21 Fragment of Palmerolide A. Chemistry 2012; 18:13284-7. [DOI: 10.1002/chem.201201806] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Indexed: 11/06/2022]
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1031
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Barluenga J, Sigüeiro R, Vicente R, Ballesteros A, Tomás M, Rodríguez MA. Gold-Catalyzed Functionalization of Unactivated C(sp3)H Bonds by Hydride Transfer Facilitated by Alkynylspirocyclopropanes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205051] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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1032
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Barluenga J, Sigüeiro R, Vicente R, Ballesteros A, Tomás M, Rodríguez MA. Gold-Catalyzed Functionalization of Unactivated C(sp3)H Bonds by Hydride Transfer Facilitated by Alkynylspirocyclopropanes. Angew Chem Int Ed Engl 2012; 51:10377-81. [PMID: 22976902 DOI: 10.1002/anie.201205051] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Indexed: 11/07/2022]
Affiliation(s)
- José Barluenga
- Departamento de Química Orgánica e Inorgánica e Instituto Universitario de Química Organometálica Enrique Moles, Universidad de Oviedo, c/Julián Clavería 8, 33006 Oviedo, Spain.
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1033
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Synthesis of Hexahydroindoles by Intramolecular C sp 3H Alkenylation: Application to the Synthesis of the Core of Aeruginosins. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205403] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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1034
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Sofack-Kreutzer J, Martin N, Renaudat A, Jazzar R, Baudoin O. Synthesis of Hexahydroindoles by Intramolecular C sp 3H Alkenylation: Application to the Synthesis of the Core of Aeruginosins. Angew Chem Int Ed Engl 2012; 51:10399-402. [DOI: 10.1002/anie.201205403] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Indexed: 11/06/2022]
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1035
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Zhu C, Falck JR. Rhodium catalyzed synthesis of isoindolinones via C-H activation of N-benzoylsulfonamides. Tetrahedron 2012; 68:9192-9199. [PMID: 23087489 DOI: 10.1016/j.tet.2012.08.095] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient approach to a wide range of isoindolinones, including 3-monosubstituted and 3,3-disubstituted isoindolinones, from the annulation of N-benzoylsulfonamides with olefins and diazoacetate has been developed. The transformation is broadly compatible with both terminal and internal olefins. Moreover, diazoacetate is for the first time incorporated into an amide-directed C-H functionalization reaction. Specifically, the rhodium complex [{RhCl(2)Cp*}(2)] enables the in situ dimerization of diazoacetate in addition to its role in catalyzing C-H functionalization/cross-coupling.
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Affiliation(s)
- Chen Zhu
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390-9038, USA
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1036
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Lescot C, Darses B, Collet F, Retailleau P, Dauban P. Intermolecular C-H amination of complex molecules: insights into the factors governing the selectivity. J Org Chem 2012; 77:7232-40. [PMID: 22892031 DOI: 10.1021/jo301563j] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Transition-metal-catalyzed C-H amination via nitrene insertion allows the direct transformation of a C-H into a C-N bond. Given the ubiquity of C-H bonds in organic compounds, such a process raises the problem of regio- and chemoselectivity, a challenging goal even more difficult to tackle as the complexity of the substrate increases. Whereas excellent regiocontrol can be achieved by the use of an appropriate tether securing intramolecular addition of the nitrene, the intermolecular C-H amination remains much less predictable. This study aims at addressing this issue by capitalizing on an efficient stereoselective nitrene transfer involving the combination of a chiral aminating agent 1 with a chiral rhodium catalyst 2. Allylic C-H amination of terpenes and enol ethers occurs with excellent yields as well as with high regio-, chemo-, and diastereoselectivity as a result of the combination of steric and electronic factors. Conjugation of allylic C-H bonds with the π-bond would explain the chemoselectivity observed for cyclic substrates. Alkanes used in stoichiometric amounts are also efficiently functionalized with a net preference for tertiary equatorial C-H bonds. The selectivity, in this case, can be rationalized by steric and hyperconjugative effects. This study, therefore, provides useful information to better predict the site of C-H amination of complex molecules.
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Affiliation(s)
- Camille Lescot
- Centre de Recherche de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, UPR 2301 CNRS Avenue de la Terrasse, F-91198 Gif-sur-Yvette, France
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1037
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McMurray L, Beck EM, Gaunt MJ. Chemical Synthesis of Aspidosperma Alkaloids Inspired by the Reverse of the Biosynthesis of the Rhazinilam Family of Natural Products. Angew Chem Int Ed Engl 2012; 51:9288-91. [DOI: 10.1002/anie.201204151] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Indexed: 11/12/2022]
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1038
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McMurray L, Beck EM, Gaunt MJ. Chemical Synthesis of Aspidosperma Alkaloids Inspired by the Reverse of the Biosynthesis of the Rhazinilam Family of Natural Products. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204151] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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1039
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Li Y, Zhang XS, Zhu QL, Shi ZJ. Olefinic C–H Bond Addition to Aryl Aldehyde and Its N-Sulfonylimine via Rh Catalysis. Org Lett 2012; 14:4498-501. [DOI: 10.1021/ol301989n] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yang Li
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, and State Key Laboratory of Organometallic Chemistry, SIOC, CAS, Shanghai 200032, China
| | - Xi-Sha Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, and State Key Laboratory of Organometallic Chemistry, SIOC, CAS, Shanghai 200032, China
| | - Qi-Lei Zhu
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, and State Key Laboratory of Organometallic Chemistry, SIOC, CAS, Shanghai 200032, China
| | - Zhang-Jie Shi
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China, and State Key Laboratory of Organometallic Chemistry, SIOC, CAS, Shanghai 200032, China
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1040
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Funktionalisierung von C-H-Bindungen: neue Synthesemethoden für Naturstoffe und Pharmazeutika. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201666] [Citation(s) in RCA: 756] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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1041
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Yamaguchi J, Yamaguchi AD, Itami K. CH Bond Functionalization: Emerging Synthetic Tools for Natural Products and Pharmaceuticals. Angew Chem Int Ed Engl 2012; 51:8960-9009. [DOI: 10.1002/anie.201201666] [Citation(s) in RCA: 2423] [Impact Index Per Article: 201.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Indexed: 01/04/2023]
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1042
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Jiao ZW, Zhang SY, He C, Tu YQ, Wang SH, Zhang FM, Zhang YQ, Li H. Organocatalytic Asymmetric Direct C sp 3H Functionalization of Ethers: A Highly Efficient Approach to Chiral Spiroethers. Angew Chem Int Ed Engl 2012; 51:8811-5. [DOI: 10.1002/anie.201204274] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Indexed: 11/05/2022]
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1043
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Nanjo T, Tsukano C, Takemoto Y. Palladium-Catalyzed Cascade Process Consisting of Isocyanide Insertion and Benzylic C(sp3)–H Activation: Concise Synthesis of Indole Derivatives. Org Lett 2012; 14:4270-3. [PMID: 22849720 DOI: 10.1021/ol302035j] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Takeshi Nanjo
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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1044
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Jiao ZW, Zhang SY, He C, Tu YQ, Wang SH, Zhang FM, Zhang YQ, Li H. Organocatalytic Asymmetric Direct C sp 3H Functionalization of Ethers: A Highly Efficient Approach to Chiral Spiroethers. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204274] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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1045
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Clausen DJ, Floreancig PE. Aromatic cations from oxidative carbon-hydrogen bond cleavage in bimolecular carbon-carbon bond forming reactions. J Org Chem 2012; 77:6574-82. [PMID: 22780559 DOI: 10.1021/jo301185h] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Chromenes and isochromenes react quickly with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) to form persistent aromatic oxocarbenium ions through oxidative carbon-hydrogen cleavage. This process is tolerant of electron-donating and electron-withdrawing groups on the benzene ring and additional substitution on the pyran ring. A variety of nucleophiles can be added to these cations to generate a diverse set of structures.
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Affiliation(s)
- Dane J Clausen
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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1046
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Shimizu Y, Morimoto H, Zhang M, Ohshima T. Microwave‐Assisted Deacylation of Unactivated Amides Using Ammonium‐Salt‐Accelerated Transamidation. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202354] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuhei Shimizu
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi Higashi‐ku, Fukuoka, 812‐8582 (Japan)
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi Higashi‐ku, Fukuoka, 812‐8582 (Japan)
| | - Ming Zhang
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi Higashi‐ku, Fukuoka, 812‐8582 (Japan)
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi Higashi‐ku, Fukuoka, 812‐8582 (Japan)
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1047
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Shimizu Y, Morimoto H, Zhang M, Ohshima T. Microwave‐Assisted Deacylation of Unactivated Amides Using Ammonium‐Salt‐Accelerated Transamidation. Angew Chem Int Ed Engl 2012; 51:8564-7. [DOI: 10.1002/anie.201202354] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Yuhei Shimizu
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi Higashi‐ku, Fukuoka, 812‐8582 (Japan)
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi Higashi‐ku, Fukuoka, 812‐8582 (Japan)
| | - Ming Zhang
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi Higashi‐ku, Fukuoka, 812‐8582 (Japan)
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, Maidashi Higashi‐ku, Fukuoka, 812‐8582 (Japan)
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1048
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Rit RK, Yadav MR, Sahoo AK. Pd(II)-Catalyzed Primary-C(sp3)–H Acyloxylation at Room Temperature. Org Lett 2012; 14:3724-7. [DOI: 10.1021/ol301579q] [Citation(s) in RCA: 156] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Raja K. Rit
- School of Chemistry, University of Hyderabad, Hyderabad, India
| | - M. Ramu Yadav
- School of Chemistry, University of Hyderabad, Hyderabad, India
| | - Akhila K. Sahoo
- School of Chemistry, University of Hyderabad, Hyderabad, India
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1049
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Hashizume S, Oisaki K, Kanai M. Functional‐Group‐Tolerant Catalytic Migratory Oxidative Coupling of Nitrones. Chem Asian J 2012; 7:2600-6. [DOI: 10.1002/asia.201200359] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Shogo Hashizume
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan), Fax: (+81) 3‐5841‐5206
- Kanai Life Science Catalysis Project, ERATO (Japan) Science and Technology Agency (JST), Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Kounosuke Oisaki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan), Fax: (+81) 3‐5841‐5206
- Kanai Life Science Catalysis Project, ERATO (Japan) Science and Technology Agency (JST), Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan), Fax: (+81) 3‐5841‐5206
- Kanai Life Science Catalysis Project, ERATO (Japan) Science and Technology Agency (JST), Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
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1050
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Lebel H, Trudel C, Spitz C. Stereoselective intermolecular C-H amination reactions. Chem Commun (Camb) 2012; 48:7799-801. [PMID: 22751570 DOI: 10.1039/c2cc33689h] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel chiral N-mesyloxycarbamate to perform rhodium-catalyzed stereoselective C-H amination reactions is reported. Chiral benzylic and propargylic amines are produced in good yields and selectivities using ethyl acetate as solvent. The corresponding free amines are easily obtained by cleavage of the chiral reagent, which could also be recovered.
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Affiliation(s)
- Hélène Lebel
- Département de chimie et Centre en chimie verte et catalyse, Université de Montréal, 2900 Boul. Edouard Montpetit, Montréal, Québec, Canada.
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