101
|
Hong BC, Dange NS, Yen PJ, Lee GH, Liao JH. Organocatalytic Asymmetric Anti-Selective Michael Reactions of Aldehydes and the Sequential Reduction/Lactonization/Pauson–Khand Reaction for the Enantioselective Synthesis of Highly Functionalized Hydropentalenes. Org Lett 2012; 14:5346-9. [DOI: 10.1021/ol302527z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Nitin S. Dange
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Po-Jen Yen
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Ju-Hsiou Liao
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| |
Collapse
|
102
|
Wang C, Yang X, Raabe G, Enders D. A Short Asymmetric Synthesis of the Benzopyrano[3,4-c]pyrrolidine Coreviaan Organocatalytic Domino Oxa-Michael/Michael Reaction. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200472] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
103
|
Fridén-Saxin M, Seifert T, Hansen LK, Grøtli M, Erdelyi M, Luthman K. Proline-mediated formation of novel chroman-4-one tetrahydropyrimidines. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
104
|
de Graaff C, Ruijter E, Orru RVA. Recent developments in asymmetric multicomponent reactions. Chem Soc Rev 2012; 41:3969-4009. [PMID: 22546840 DOI: 10.1039/c2cs15361k] [Citation(s) in RCA: 640] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Multicomponent reactions (MCRs) receive increasing attention because they address both diversity and complexity in organic synthesis. Thus, in principle diverse sets of relatively complex structures can be generated from simple starting materials in a single reaction step. The ever increasing need for optically pure compounds for pharmaceutical and agricultural applications as well as for catalysis promotes the development of asymmetric multicomponent reactions. In recent years, asymmetric multicomponent reactions have been applied to the total synthesis of various enantiopure natural products and commercial drugs, reducing the number of required reaction steps significantly. Although many developments in diastereoselective MCRs have been reported, the field of catalytic enantioselective MCRs has just started to blossom. This critical review describes developments in both diastereoselective and catalytic enantioselective multicomponent reactions since 2004. Significantly broadened scopes, new techniques, more environmentally benign methods and entirely novel MCRs reflect the increasingly inventive paths that synthetic chemist follow in this field. Until recently, enantioselective transition metal-catalyzed MCRs represented the majority of catalytic enantioselective MCRs. However, metal contamination is highly undesirable for drug synthesis. The emergence of organocatalysis greatly influences the quest for new asymmetric MCRs.
Collapse
Affiliation(s)
- Corien de Graaff
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines and Systems, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | | | | |
Collapse
|
105
|
Enders D, Greb A, Deckers K, Selig P, Merkens C. Quadruple Domino Organocatalysis: An Asymmetric Aza-Michael/Michael/Michael/Aldol Reaction Sequence Leading to Tetracyclic Indole Structures with Six Stereocenters. Chemistry 2012; 18:10226-9. [DOI: 10.1002/chem.201201493] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Indexed: 01/03/2023]
|
106
|
Singh S, Chimni SS. Chiral amine catalyzed enantio- and diastereoselective Michael reaction in brine. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.06.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
107
|
Magar DR, Chen K. Synthesis of substituted chiral chromans via organocatalytic kinetic resolution of racemic 3-nitro-2-aryl-2H-chromenes with ketones catalyzed by pyrrolidinyl-camphor-derived organocatalysts. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.05.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
108
|
Ramachary DB, Madhavachary R, Prasad MS. Observation of neighboring ortho-hydroxyl group participation in organocatalytic asymmetric sequential Michael-lactonization reactions: synthesis of highly substituted chiral spirodihydrocoumarins. Org Biomol Chem 2012; 10:5825-9. [PMID: 22391626 DOI: 10.1039/c2ob07122c] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A general approach to asymmetric synthesis of highly substituted spirodihydrocoumarins with a quaternary stereocenter was achieved through neighboring ortho-hydroxyl group induced sequential Michael-lactonization reactions on 2-(2-nitrovinyl)phenols with alkyl cyclopentanone-2-carboxylates in the presence of a catalytic amount of quinine-NH-thiourea followed by p-TSA.
Collapse
|
109
|
Yokosaka T, Hamajima A, Nemoto T, Hamada Y. Asymmetric synthesis of highly functionalized γ-lactams through an organocatalytic aza-Michael–Michael reaction cascade using fumaric acid amide esters as multi-reactive substrates. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.12.114] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
110
|
|
111
|
Asymmetric Organocatalytic Michael Addition-Cyclization Cascade Reaction of Nitroalkanes with o-Hydroxycinnamaldehydes. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101794] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
112
|
Marson CM. Multicomponent and sequential organocatalytic reactions: diversity with atom-economy and enantiocontrol. Chem Soc Rev 2012; 41:7712-22. [DOI: 10.1039/c2cs35183h] [Citation(s) in RCA: 205] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
113
|
Fuwa H. Total Synthesis of Tetrahydropyran-Containing Natural Products Exploiting Intramolecular Oxa-Conjugate Cyclization. HETEROCYCLES 2012. [DOI: 10.3987/rev-12-730] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
114
|
Affiliation(s)
- Carl F Nising
- Bayer Pharma AG, Aprather Weg 18a, D-42113 Wuppertal, Germany.
| | | |
Collapse
|
115
|
Kumar S, Narayanan A, Rao MN, Shaikh MM, Ghosh P. Bifunctional nickel precatalysts of amido-functionalized N-heterocyclic carbenes for base-free Michael reaction under ambient conditions. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2011.09.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
116
|
Waser M. Combined Iminium-Enamine Catalyzed Approaches. ASYMMETRIC ORGANOCATALYSIS IN NATURAL PRODUCT SYNTHESES 2012:69-75. [DOI: 10.1007/978-3-7091-1163-5_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|
117
|
Rueping M, Dufour J, Maji MS. Relay catalysis: combined metal catalyzed oxidation and asymmetric iminium catalysis for the synthesis of Bi- and tricyclic chromenes. Chem Commun (Camb) 2012; 48:3406-8. [DOI: 10.1039/c2cc00129b] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
118
|
Pansare SV, Dyapa R. Enantioselective approach to functionalized quinolizidines: synthesis of (+)-julandine and (+)-cryptopleurine. Org Biomol Chem 2012; 10:6776-84. [DOI: 10.1039/c2ob25689d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
119
|
Fuwa H, Ichinokawa N, Noto K, Sasaki M. Stereoselective Synthesis of 2,6-Cis-Substituted Tetrahydropyrans: Brønsted Acid-Catalyzed Intramolecular Oxa-Conjugate Cyclization of α,β-Unsaturated Ester Surrogates. J Org Chem 2011; 77:2588-607. [DOI: 10.1021/jo202179s] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Haruhiko Fuwa
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Naoki Ichinokawa
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Kenkichi Noto
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Makoto Sasaki
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| |
Collapse
|
120
|
Hong BC, Dange NS, Ding CF, Liao JH. Organocatalytic Michael–Knoevenagel–Hetero-Diels–Alder Reactions: An Efficient Asymmetric One-Pot Strategy to Isochromene Pyrimidinedione Derivatives. Org Lett 2011; 14:448-51. [DOI: 10.1021/ol202877m] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Nitin S. Dange
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Chun-Feng Ding
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Ju-Hsiou Liao
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| |
Collapse
|
121
|
Abstract
Covering: 2010. Previous review: Nat. Prod. Rep., 2011, 28, 196. This review covers the literature published in 2010 for marine natural products, with 895 citations (590 for the period January to December 2010) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1003 for 2010), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
Collapse
Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
| | | | | | | | | |
Collapse
|
122
|
Hong BC, Hsu CS, Lee GH. Enantioselective total synthesis of (+)-galbulin via organocatalytic domino Michael-Michael-aldol condensation. Chem Commun (Camb) 2011; 48:2385-7. [PMID: 22179766 DOI: 10.1039/c2cc16682h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A concise and practical enantioselective synthesis of (+)-galbulin has been achieved using organocatalytic domino Michael-Michael-aldol condensation and organocatalytic kinetic resolution as the key steps.
Collapse
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan, ROC.
| | | | | |
Collapse
|
123
|
Abstract
Products of a novel iminium-catalyzed oxa-Michael addition undergo a kinetic resolution by a subsequent enamine-catalyzed intermolecular reaction. This is a rare example of kinetic resolution by enamine catalysis and the first organocascade kinetic resolution. This resolution produces enantioenriched 2,6-cis-tetrahydropyrans and, notably, cascade products with absolute and relative configurations normally not observed using this diphenyl prolinol silyl ether. This resolution thus provides new insight into asymmetric induction in reactions employing this catalyst.
Collapse
Affiliation(s)
- Patrick G McGarraugh
- Department of Chemistry, Brooklyn College and the City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210, USA
| | | |
Collapse
|
124
|
Hong BC, Kotame P, Lee GH. Asymmetric Synthesis of 3,4-Dihydrocoumarin Motif with an All-Carbon Quaternary Stereocenter via a Michael–Acetalization Sequence with Bifunctional Amine-thiourea Organocatalysts. Org Lett 2011; 13:5758-61. [DOI: 10.1021/ol202331j] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Prakash Kotame
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| |
Collapse
|
125
|
Varga S, Jakab G, Drahos L, Holczbauer T, Czugler M, Soós T. Double Diastereocontrol in Bifunctional Thiourea Organocatalysis: Iterative Michael–Michael–Henry Sequence Regulated by the Configuration of Chiral Catalysts. Org Lett 2011; 13:5416-9. [DOI: 10.1021/ol201559j] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Szilárd Varga
- Institute of Biomolecular Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, and Institute of Structural Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary
| | - Gergely Jakab
- Institute of Biomolecular Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, and Institute of Structural Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary
| | - László Drahos
- Institute of Biomolecular Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, and Institute of Structural Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary
| | - Tamás Holczbauer
- Institute of Biomolecular Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, and Institute of Structural Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary
| | - Mátyás Czugler
- Institute of Biomolecular Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, and Institute of Structural Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary
| | - Tibor Soós
- Institute of Biomolecular Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, and Institute of Structural Chemistry, Chemical Research Center of Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary
| |
Collapse
|
126
|
Dienamine Activation in the Organocatalytic Asymmetric Synthesis of cis-3,4-Difunctionalized Chromans and Dihydrocoumarins. Chem Asian J 2011; 6:2255-9. [DOI: 10.1002/asia.201100320] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Indexed: 11/07/2022]
|
127
|
Rueping M, Haack K, Ieawsuwan W, Sundén H, Blanco M, Schoepke FR. Nature-inspired cascade catalysis: reaction control through substrate concentration--double vs. quadruple domino reactions. Chem Commun (Camb) 2011; 47:3828-30. [PMID: 21359352 DOI: 10.1039/c1cc10245a] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design of biologically inspired, multi-component cascade reactions enables the targeted synthesis of assorted structurally complex products. Similar to regulation in cells the reaction path is controlled by the substrate concentration and complex enantiopure products with high structural diversity are provided.
Collapse
Affiliation(s)
- Magnus Rueping
- RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | | | | | | | | | | |
Collapse
|
128
|
Hong BC, Nimje RY, Lin CW, Liao JH. Enantioselective Organocatalytic Michael−Wittig−Michael−Michael Reaction: Dichotomous Construction of Pentasubstituted Cyclopentanecarbaldehydes and Pentasubstituted Cyclohexanecarbaldehydes. Org Lett 2011; 13:1278-81. [DOI: 10.1021/ol1030487] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Roshan Y. Nimje
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Cheng-Wei Lin
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Ju-Hsiou Liao
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| |
Collapse
|
129
|
Hong BC, Dange NS, Hsu CS, Liao JH, Lee GH. Dynamic kinetic asymmetric synthesis of five contiguous stereogenic centers by sequential organocatalytic stetter and Michael-aldol reaction: enantioselective synthesis of fully substituted cyclopentanols bearing a quaternary stereocenter. Org Lett 2011; 13:1338-41. [PMID: 21348455 DOI: 10.1021/ol200006e] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A synthesis of fully substituted cyclopentanes bearing a quaternary carbon center and five contiguous stereogenic centers has been achieved by sequential organocatalyzed Stetter and Michael-Aldol reactions of heteroaromatic aldehydes, nitroalkenes, and α,β-unsaturated aldehydes via the [1 + 2 + 2] annulation strategy with dynamic kinetic asymmetric transformation and excellent enantioselectivities (up to >99% ee).
Collapse
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, ROC.
| | | | | | | | | |
Collapse
|
130
|
Pansare SV, Lingampally R, Dyapa R. A Simple Enantioselective Route to Functionalized Indolizidines: Synthesis of (+)-Ipalbidine and (+)-Antofine. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100125] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
131
|
Hong BC, Kotame P, Liao JH. Enantioselective organocatalytic domino Michael–acetalization–Henry reactions of 2-hydroxynitrostyrene and aldehyde for the synthesis of tetrahydro-6H-benzo[c]chromenones. Org Biomol Chem 2011; 9:382-6. [DOI: 10.1039/c0ob00834f] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
132
|
|
133
|
Zhang F, Wei M, Dong J, Zhou Y, Lu D, Gong Y, Yang X. A Recyclable Organocascade Reaction System: Stereoselective Precipitation of Optically Active cis-δ-Lactols with Quaternary Stereocenters during the Michael-Hemiacetalization Reaction. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000553] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
134
|
Enders D, Wang C, Yang X, Raabe G. Asymmetric Synthesis of cis-3,4-Disubstituted Chromans and Dihydrocoumarins via an Organocatalytic Michael Addition/ Hemiacetalization Reaction. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000659] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
135
|
Roca-Lopez D, Sadaba D, Delso I, Herrera RP, Tejero T, Merino P. Asymmetric organocatalytic synthesis of γ-nitrocarbonyl compounds through Michael and Domino reactions. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.11.001] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
136
|
Hong BC, Dange NS, Hsu CS, Liao JH. Sequential Organocatalytic Stetter and Michael-Aldol Condensation Reaction: Asymmetric Synthesis of Fully Substituted Cyclopentenes via a [1 + 2 + 2] Annulation Strategy. Org Lett 2010; 12:4812-5. [DOI: 10.1021/ol101969t] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Nitin S. Dange
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Che-Sheng Hsu
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Ju-Hsiou Liao
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| |
Collapse
|
137
|
Neumann M, Füldner S, König B, Zeitler K. Metal-Free, Cooperative Asymmetric Organophotoredox Catalysis with Visible Light. Angew Chem Int Ed Engl 2010; 50:951-4. [DOI: 10.1002/anie.201002992] [Citation(s) in RCA: 580] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 06/10/2010] [Indexed: 11/12/2022]
|
138
|
Neumann M, Füldner S, König B, Zeitler K. Metallfreie kooperative asymmetrische Organophotoredoxkatalyse mit sichtbarem Licht. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002992] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
139
|
Jiang K, Jia ZJ, Yin X, Wu L, Chen YC. Asymmetric quadruple aminocatalytic domino reactions to fused carbocycles incorporating a spirooxindole motif. Org Lett 2010; 12:2766-9. [PMID: 20481511 DOI: 10.1021/ol100857s] [Citation(s) in RCA: 182] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The efficient assembly of hydroindane derivatives incorporating a spirooxindole motif was realized via a new three-component domino reaction of (E)-4-(1-methyl-2-oxoindolin-3-ylidene)-3-oxobutanoates and two molecules of alpha,beta-unsaturated aldehydes under quadruple iminium-enamine-iminium-enamine catalysis. The complex products bearing six contiguous stereogenic centers were obtained in excellent stereoselectivities (96->99% ee, >99% de).
Collapse
Affiliation(s)
- Kun Jiang
- Key Laboratory of Drug-Targeting and Drug Delivery System of Education Ministry, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | | | | | | | | |
Collapse
|
140
|
Marqués-López E, Herrera RP, Christmann M. Asymmetric organocatalysis in total synthesis--a trial by fire. Nat Prod Rep 2010; 27:1138-67. [PMID: 20445939 DOI: 10.1039/b924964h] [Citation(s) in RCA: 269] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Eugenia Marqués-López
- Technische Universität Dortmund, Organische Chemie, Otto-Hahn-Str. 6, 44227, Dortmund, Germany.
| | | | | |
Collapse
|
141
|
Mager I, Zeitler K. Efficient, Enantioselective Iminium Catalysis with an Immobilized, Recyclable Diarylprolinol Silyl Ether Catalyst. Org Lett 2010; 12:1480-3. [DOI: 10.1021/ol100166z] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ina Mager
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, D-93053 Regensburg, Germany
| | - Kirsten Zeitler
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, D-93053 Regensburg, Germany
| |
Collapse
|