1
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Sims HS, Dai M. Palladium-Catalyzed Carbonylations: Application in Complex Natural Product Total Synthesis and Recent Developments. J Org Chem 2023; 88:4925-4941. [PMID: 36705327 PMCID: PMC10127288 DOI: 10.1021/acs.joc.2c02746] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Carbon monoxide is a cheap and abundant C1 building block that can be readily incorporated into organic molecules to rapidly build structural complexity. In this Perspective, we outline several recent (since 2015) examples of palladium-catalyzed carbonylations in streamlining complex natural product total synthesis and highlight the strategic importance of these carbonylation reactions in the corresponding synthesis. The selected examples include spinosyn A, callyspongiolide, perseanol, schizozygane alkaloids, cephanolides, and bisdehydroneostemoninine and related stemona alkaloids. We also provide our perspective about the recent advancements and future developments of palladium-catalyzed carbonylations.
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Affiliation(s)
- Hunter S Sims
- Department of Chemistry, Emory University, Atlanta, Georgia30322, United States.,Department of Chemistry, Purdue University, West Lafayette, Indiana47907, United States
| | - Mingji Dai
- Department of Chemistry, Emory University, Atlanta, Georgia30322, United States
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2
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Biswas S, Bania N, Chandra Pan S. Recent Developments in Intermolecular Cross-Rauhut-Currier Reactions. CHEM REC 2023:e202200257. [PMID: 36703563 DOI: 10.1002/tcr.202200257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/04/2023] [Indexed: 01/28/2023]
Abstract
Intermolecular cross Rauhut-Currier reactions have gained much importance in recent years. It has proved its importance through procedures involving various catalysts and resulting in complex structures with good regio- as well as stereo- selectivity. This review highlights the recent developments of these reactions, published in current years, involving both achiral and chiral catalysts to give products, having various utilities. In addition, the detailed mechanistic studies of the above-mentioned reactions are also presented.
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Affiliation(s)
- Subhankar Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, India, 781039
| | - Nimisha Bania
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, India, 781039
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, India, 781039
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3
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Wang LL, Yu Q, Zhang W, Yang S, Peng L, Zhang L, Li XN, Gagosz F, Kirschning A. Asymmetric Total Synthesis of Antibiotic Elansolid A. J Am Chem Soc 2022; 144:6871-6881. [PMID: 35410472 DOI: 10.1021/jacs.2c01133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Elansolid A is a structurally complex polyketide macrolactone natural product that exhibits promising antibacterial properties. Its challenging asymmetric total synthesis was achieved by a convergent strategy, in which the tetrahydroindane core of the molecule and an eastern vinyl iodide moiety were combined as the main fragments. The central tetrahydroindane motif was constructed with high stereoselectivity by a bioinspired intramolecular Diels-Alder cycloaddition, generating four stereogenic centers in a single step. The stereocontrol of this key step could be achieved by virtue of a 1,3-allylic strain generated by the temporary introduction of a steric-directing iodine substituent on the substrate. The formation of the macrolactone motif that completes the synthesis was achieved via two different retrosynthetic disconnections, namely, a Suzuki-Miyaura cross-coupling or an alternative Mukaiyama esterification reaction.
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Affiliation(s)
- Liang-Liang Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Qi Yu
- School of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, PR China
| | - Wenjing Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, PR China
| | - Shuai Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Lin Peng
- School of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, PR China
| | - Liang Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Fabien Gagosz
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - Andreas Kirschning
- Institute of Organic Chemistry, Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
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4
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Stevanović D, Bugarinović J, Pešić M, Todosijević A, Bogdanović GA, Damljanović I. Chemoselective synthesis of multifunctional ferrocene-containing derivatives by the cross Rauhut-Currier reaction. RSC Adv 2021; 11:36208-36214. [PMID: 35492783 PMCID: PMC9043404 DOI: 10.1039/d1ra07619a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/03/2021] [Indexed: 12/05/2022] Open
Abstract
A simple protocol has been developed for the chemoselective synthesis of ferrocene-containing Rauhut-Currier adducts from 1-ferrocenyl-2-nitroethene and vinyl ketones using 20 mol% of triphenylphosphine. Multifunctional ferrocene derivatives were obtained in moderate to high yields (51-92%) by the coupling between the α-position of vinyl ketones and the β-position of the nitroalkene. The study of the Rauhut-Currier reaction under the described conditions showed that the strong electron-donating group at the β-position of nitroalkenes plays a significant role in the reaction outcome due to prevention of polymerization and stabilization of the zwitterionic intermediate. Additionally, a preparative synthesis of 4-ferrocenyl-3-methylene-5-nitropentan-2-one was carried out and its synthetic transformations showed easy conversion to other useful building blocks.
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Affiliation(s)
| | | | - Marko Pešić
- Faculty of Science, University of Kragujevac 34000 Kragujevac Serbia
| | | | - Goran A Bogdanović
- VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade 11001 Belgrade Serbia
| | - Ivan Damljanović
- Faculty of Science, University of Kragujevac 34000 Kragujevac Serbia
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5
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Blank BR, Andrews IP, Kwon O. Phosphine-Catalyzed (4+1) Annulation: Rearrangement of Allenylic Carbamates to 3-Pyrrolines through Phosphonium Diene Intermediates. ChemCatChem 2020; 12:4352-4372. [PMID: 34447481 PMCID: PMC8386297 DOI: 10.1002/cctc.202000626] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Indexed: 01/02/2023]
Abstract
We have developed a phosphine-catalyzed (4+1) annulative rearrangement for the preparation of 3-pyrrolines from allenylic carbamates via phosphonium diene intermediates. We employed this methodology to synthesize an array of 1,3-disubstituted- and 1,2,3-trisubstituted-3-pyrrolines, including the often difficult to prepare 2-alkyl variants. A mechanistic investigation employing allenylic acetates and mononucleophiles unexpectedly unveiled that a phosphine-catalyzed (4+1) reaction for the construction of cyclopentene products, previously reported by Tong, might not occur through a phosphonium diene, as had been proposed, but rather through multiple mechanisms working in concert. Consequently, our phosphine-catalyzed rearrangement is most likely the first transformation to involve the unequivocal formation of a phosphonium diene intermediate along the reaction pathway. To demonstrate the synthetic utility of this newly developed reaction, we have completed concise formal syntheses of the pyrrolizidine alkaloids (±)-trachelanthamidine and (±)-supinidine.
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Affiliation(s)
- Brian R Blank
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California, 90095-1569 (USA)
| | - Ian P Andrews
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California, 90095-1569 (USA)
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California, 90095-1569 (USA)
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6
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Jiang Y, Yang Y, He Q, Du W, Chen YC. Asymmetric Intramolecular Rauhut-Currier Reaction and Its Desymmetric Version via Double Thiol/Phase-Transfer Catalysis. J Org Chem 2020; 85:10760-10771. [PMID: 32806086 DOI: 10.1021/acs.joc.0c01293] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An asymmetric intramolecular Rauhut-Currier reaction of linear bis(enones) has been achieved via double activation catalysis of thiols and phase transfer substances, furnishing both enantioenriched cyclohexene and cyclopentene derivatives (up to 95% ee). Furthermore, the desymmetric version of prochiral substrates was developed under similar catalysis, producing the frameworks bearing an additional tertiary or even quaternary stereogenic center with moderate to excellent diastereo- and enantioselectivity (up to 95% ee, >19:1 dr).
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Affiliation(s)
- Ying Jiang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yang Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Qing He
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.,College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
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7
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Mato R, Manzano R, Reyes E, Carrillo L, Uria U, Vicario JL. Catalytic Enantioselective Transannular Morita–Baylis–Hillman Reaction. J Am Chem Soc 2019; 141:9495-9499. [DOI: 10.1021/jacs.9b03679] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Raquel Mato
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Rubén Manzano
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Efraim Reyes
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Luisa Carrillo
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Uxue Uria
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Jose L. Vicario
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
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8
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Remeur C, Desrat S, Gandon V, Roussi F. Selectivity in the Intermolecular Diels-Alder Reaction of Conjugated Trienes: Experimental and Theoretical Approaches. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800472] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Camille Remeur
- Institut de Chimie des Substances Naturelles; CNRS-ICSN UPR 2301; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Sandy Desrat
- Institut de Chimie des Substances Naturelles; CNRS-ICSN UPR 2301; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Vincent Gandon
- Institut de Chimie des Substances Naturelles; CNRS-ICSN UPR 2301; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
- ICMMO; CNRS UMR 8182; Univ Paris-Sud; Université Paris-Saclay; Bât. 420 91405 Orsay cedex France
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles; CNRS-ICSN UPR 2301; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
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9
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Li K, Jin Z, Chan WL, Lu Y. Enantioselective Construction of Bicyclic Pyran and Hydrindane Scaffolds via Intramolecular Rauhut–Currier Reactions Catalyzed by Thiourea-Phosphines. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02706] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kaizhi Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Zhichao Jin
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Wai-Lun Chan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Yixin Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu P. R. China, 215123
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10
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Goswami P, Sharma S, Singh G, Vijaya Anand R. Bis(amino)cyclopropenylidene Catalyzed Rauhut–Currier Reaction between α,β-Unsaturated Carbonyl Compounds and para-Quinone Methides. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00225] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Prithwish Goswami
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
| | - Sonam Sharma
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
| | - Gurdeep Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
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11
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He XH, Yang L, Ji YL, Zhao Q, Yang MC, Huang W, Peng C, Han B. Chemo- and Stereoselective Cross Rauhut-Currier-Type Reaction of Tri-substituted Alkenes Containing Trifluoromethyl Groups. Chemistry 2018; 24:1947-1955. [DOI: 10.1002/chem.201705010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 11/15/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Xiang-Hong He
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Lei Yang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Yan-Ling Ji
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Qian Zhao
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Ming-Cheng Yang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Wei Huang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
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12
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Zhang K, Liu S, Liu A, Chai H, Li J, A L. A semisynthesis of 3'- O-ethyl-5,6-dihydrospinosyn J based on the spinosyn A aglycone. Beilstein J Org Chem 2017; 13:2603-2609. [PMID: 29259670 PMCID: PMC5727846 DOI: 10.3762/bjoc.13.257] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 11/16/2017] [Indexed: 11/23/2022] Open
Abstract
Spinetoram, a mixture of 3'-O-ethyl-5,6-dihydrospinosyn J (XDE-175-J, major component) and 3'-O-ethylspinosyn L (XDE-175-L, minor component), is a novel kind of green and efficient insecticide with a broad range of action against various insects. Nowadays, spinetoram is widely used in agriculture and food storage. This work reports a 7-step semisynthesis of 3'-O-ethyl-5,6-dihydrospinosyn J from spinosyn A aglycone. The C9-OH and C17-OH of the aglycone are successively connected to 3-O-ethyl-2,4-di-O-methylrhamnose and D-forosamine after selective protection and deprotection steps. Then, with 10% Pd/C as catalyst, the 5,6-double bond of the macrolide was selectively reduced to afford 3'-O-ethyl-5,6-dihydrospinosyn J. In addition, the 3-O-ethyl-2,4-di-O-methylrhamnose is synthesized from rhamnose which is available commercially, while the D-forosamine and aglycone are obtained via the hydrolysis of spinosyn A. High yields were obtained in each step, and all intermediates in the synthesis were characterized by 1H NMR, 13C NMR and MS techniques. This study can be helpful for developing an efficient chemical synthesis of spinetoram, and it also offers opportunities to synthesize spinosyn analogues and rhamnose derivatives.
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Affiliation(s)
- Kai Zhang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, China
| | - Shenglan Liu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, China
| | - Anjun Liu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, China
| | - Hongxin Chai
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, China
| | - Jiarong Li
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, China
| | - Lamusi A
- Institute of Grassland Research of CAAS, No. 120 Wulanchabu East Street, Saihan District, Hohhot, China
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13
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DeAmicis C, Yang Q, Bright C, Edwards NA, Harris GH, Kaur S, Wood PL, Hewitson P, Ignatova S. Development of a Scalable and Sustainable High Performance CounterCurrent Chromatography (HPCCC) Purification for Spinosyn A and Spinosyn D from Spinosad. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carl DeAmicis
- Process
Chemistry, Dow AgroSciences, 9330 Zionsville Rd., Indianapolis, Indiana 46268, United States
| | - Qiang Yang
- Process
Chemistry, Dow AgroSciences, 9330 Zionsville Rd., Indianapolis, Indiana 46268, United States
| | - Colin Bright
- Dynamic Extractions, Ltd., Unit
30, Tafarnaubach Industrial Estate, Tredegar, Blaenau Gwent, Wales NP22 3AA, U.K
| | - Neil A. Edwards
- Dynamic Extractions, Ltd., Unit
30, Tafarnaubach Industrial Estate, Tredegar, Blaenau Gwent, Wales NP22 3AA, U.K
| | - Guy H. Harris
- Dynamic Extractions, Ltd., Unit
30, Tafarnaubach Industrial Estate, Tredegar, Blaenau Gwent, Wales NP22 3AA, U.K
| | - Sandeep Kaur
- Dynamic Extractions, Ltd., Unit
30, Tafarnaubach Industrial Estate, Tredegar, Blaenau Gwent, Wales NP22 3AA, U.K
| | - Philip L. Wood
- Dynamic Extractions, Ltd., Unit
30, Tafarnaubach Industrial Estate, Tredegar, Blaenau Gwent, Wales NP22 3AA, U.K
| | - Peter Hewitson
- Advanced
Bioprocessing Centre, Brunel University London, Uxbridge, Middlesex, UB8 3PH, U.K
| | - Svetlana Ignatova
- Advanced
Bioprocessing Centre, Brunel University London, Uxbridge, Middlesex, UB8 3PH, U.K
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14
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Acrylamide in Rauhut-Currier reaction; intramolecular isomerization of activated alkenes for quinolone synthesis. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Kang TC, Wu LP, Yu QW, Wu XY. Enantioselective Rauhut-Currier-Type 1,6-Conjugate Addition of Methyl Vinyl Ketone to para
-Quinone Methides. Chemistry 2017; 23:6509-6513. [DOI: 10.1002/chem.201700520] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Tian-Chen Kang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; Shanghai 200237 P. R. China
| | - Lu-Ping Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; Shanghai 200237 P. R. China
| | - Qi-Wen Yu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; Shanghai 200237 P. R. China
| | - Xin-Yan Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; Shanghai 200237 P. R. China
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16
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Jin H, Zhang Q, Li E, Jia P, Li N, Huang Y. Phosphine-catalyzed intramolecular Rauhut–Currier reaction: enantioselective synthesis of hydro-2H-indole derivatives. Org Biomol Chem 2017; 15:7097-7101. [DOI: 10.1039/c7ob01820g] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A highly enantioselective intramolecular Rauhut–Currier reaction catalyzed by a multifunctional chiral aminophosphine catalyst was reported.
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Affiliation(s)
- Hongxing Jin
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Qinglong Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Erqing Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Penghao Jia
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Ning Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
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17
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Han JC, Li CC. Ruthenium-Catalyzed Metathesis Cascade Reactions in Natural Products Synthesis. CHEM REC 2016; 17:499-517. [PMID: 27775863 DOI: 10.1002/tcr.201600110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/12/2016] [Indexed: 12/20/2022]
Abstract
In this account, we provide a brief summary of recent developments in ruthenium-catalyzed metathesis cascade reactions towards the total synthesis of natural products. We also highlight recent progress from our own laboratory regarding the synthesis of securinega alkaloids and humulanolides, which has resulted in the development of novel ruthenium-catalyzed metathesis cascade reactions. Inspired and guided by the pioneering and elegant research conducted in this area, we developed a regio-controlled relay dienyne metathesis cascade reaction and a cyclobutene-promoted RCM/ROM/RCM cascade reaction for the synthesis of securinega alkaloids and humulanolides, respectively.
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Affiliation(s)
- Jing-Chun Han
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, China
| | - Chuang-Chuang Li
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, China
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18
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Bai Y, Shen X, Li Y, Dai M. Total Synthesis of (-)-Spinosyn A via Carbonylative Macrolactonization. J Am Chem Soc 2016; 138:10838-41. [PMID: 27510806 DOI: 10.1021/jacs.6b07585] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Spinosyn A (1), a complex natural product featuring a unique 5,6,5,12-fused tetracyclic core structure, is the major component of spinosad, an organic insecticide and an FDA-approved agent used worldwide. Herein, we report an efficient total synthesis of (-)-spinosyn A with 15 steps in the longest linear sequence and 23 steps total from readily available compounds 14 and 23. The synthetic approach features several important catalytic transformations including a chiral amine-catalyzed intramolecular Diels-Alder reaction to afford 22 in excellent diastereoselectivity, a one-step gold-catalyzed propargylic acetate rearrangement to convert 28 to α-iodoenone 31, an unprecedented palladium-catalyzed carbonylative Heck macrolactonization to form the 5,12-fused macrolactone in one step, and a gold-catalyzed Yu glycosylation to install the challenging β-forosamine. This total synthesis is highly convergent and modular, thus offering opportunities to synthesize spinosyn analogues in order to address the emerging cross-resistance problems.
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Affiliation(s)
- Yu Bai
- Department of Chemistry and Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Xingyu Shen
- Department of Chemistry and Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Yong Li
- Department of Chemistry and Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Mingji Dai
- Department of Chemistry and Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
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19
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Zhou W, Chen P, Tao M, Su X, Zhao Q, Zhang J. Enantioselective intermolecular cross Rauhut-Currier reactions of activated alkenes with acrolein. Chem Commun (Camb) 2016; 52:7612-5. [PMID: 27225510 DOI: 10.1039/c6cc02742c] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enantioselective intermolecular cross Rauhut-Currier reaction of acrolein with active olefins has been a long-standing challenge because of the competitive MBH reaction and polymerization. Herein a highly enantioselective intermolecular cross Rauhut-Currier reaction of acrolein with 3-acyl acrylates and 2-ene-1,4-diones, which is enabled by newly designed Peng-Phos catalysts. This method is scalable and highly enantioselective (up to 96% ee). Several transformations of the R-C products are carried out to showcase the synthetic utility.
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Affiliation(s)
- Wei Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China.
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20
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Karabiyikoglu S, Merlic CA. Transannular [4 + 2] Cycloaddition Reactions of Cobalt-Complexed Macrocyclic Dienynes. Org Lett 2015; 17:4086-9. [DOI: 10.1021/acs.orglett.5b01984] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sedef Karabiyikoglu
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Craig A. Merlic
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095-1569, United States
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21
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Zhang YY, Gurubrahamam R, Chen K. Rauhut-Currier-Initiated Organocascade Reaction: Synthesis of Substituted Dispirocyclohexanes through a [2+2+2] Strategy Between 2-Arylideneindan-1,3-diones and Activated Alkenes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500091] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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Chandra Bharadwaj K. Intramolecular Morita–Baylis–Hillman and Rauhut–Currier reactions. A catalytic and atom economic route for carbocycles and heterocycles. RSC Adv 2015. [DOI: 10.1039/c5ra13611c] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Intramolecular MBH and RC reactions: glorious past and future opportunities.
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23
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Dong X, Liang L, Li E, Huang Y. Highly Enantioselective Intermolecular Cross Rauhut-Currier Reaction Catalyzed by a Multifunctional Lewis Base Catalyst. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409744] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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Dong X, Liang L, Li E, Huang Y. Highly Enantioselective Intermolecular Cross Rauhut-Currier Reaction Catalyzed by a Multifunctional Lewis Base Catalyst. Angew Chem Int Ed Engl 2014; 54:1621-4. [DOI: 10.1002/anie.201409744] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Indexed: 01/17/2023]
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25
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26
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Han JC, Li F, Li CC. Collective synthesis of humulanolides using a metathesis cascade reaction. J Am Chem Soc 2014; 136:13610-3. [PMID: 25228021 DOI: 10.1021/ja5084927] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new method has been developed for the concise and asymmetric synthesis of seven humulanolides in 5-7 steps without the need for protecting groups. Notably, the challenging 11-membered ring and bridged butenolide moieties in asteriscunolide D and 6,7,9,10-tetrahydroasteriscunolide were introduced in one step using a ring-opening/ring-closing metathesis cascade reaction. Asteriscunolide D was used as a versatile synthetic precursor to prepare asteriscunolides A-C via a photoinduced isomerization reaction, asteriscanolide via a unique transannular Michael reaction, and 6,7,9,10-tetradehydroasteriscanolide via a transannular Morita-Baylis-Hillman-type reaction. The unique bicyclo[6.3.0]undecane core was introduced diastereoselectively.
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Affiliation(s)
- Jing-chun Han
- Department of Chemistry, South University of Science and Technology of China , Shenzhen 518055, China
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27
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28
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Kumar R, Kumar T, Mobin SM, Nambothiri INN. Rauhut–Currier Reaction of Nitroalkenes with Vinyl Sulfones. J Org Chem 2013; 78:5073-7. [DOI: 10.1021/jo400528j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rahul Kumar
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076,
India
| | - Tarun Kumar
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076,
India
| | - Shaikh M. Mobin
- Discipline of Chemistry,
School
of Basic Sciences, Indian Institute of Technology Indore, Indore 452 017, India
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29
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30
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Lisboa MP, Jones DM, Dudley GB. Formal Synthesis of Palmerolide A, Featuring Alkynogenic Fragmentation and syn-Selective Vinylogous Aldol Chemistry. Org Lett 2013; 15:886-9. [DOI: 10.1021/ol400014e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Marilda P. Lisboa
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - David M. Jones
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Gregory B. Dudley
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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31
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Iafe RG, Kuo JL, Hochstatter DG, Saga T, Turner JW, Merlic CA. Increasing the efficiency of the transannular Diels-Alder strategy via palladium(II)-catalyzed macrocyclizations. Org Lett 2013; 15:582-5. [PMID: 23343225 DOI: 10.1021/ol303394t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Palladium(II)-catalyzed macrocyclizations of bis(vinylboronate ester) compounds are demonstrated to provide a strategically efficient approach to transannular Diels-Alder reaction substrates. In several systems reported, the macrocycle is preorganized such that cycloaddition at room temperature occurs concomitantly with cyclization. Numerous advantages over palladium(0)-catalyzed cross-coupling approaches are demonstrated.
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Affiliation(s)
- Robert G Iafe
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, USA
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32
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Facile synthesis of α-methylidene-γ-butyrolactones: intramolecular Rauhut–Currier reaction promoted by chiral acid–base organocatalysts. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.046] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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Gomez C, Betzer JF, Voituriez A, Marinetti A. Phosphine Organocatalysis in the Synthesis of Natural Products and Bioactive Compounds. ChemCatChem 2012. [DOI: 10.1002/cctc.201200442] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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MacKay JA, Landis ZC, Motika SE, Kench MH. The Intramolecular Allenolate Rauhut–Currier Reaction. J Org Chem 2012; 77:7768-74. [DOI: 10.1021/jo3015769] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James A. MacKay
- Department of Chemistry and Biochemistry, Elizabethtown College, 1 Alpha Drive, Elizabethtown, Pennsylvania
17022, United States
| | - Zachary C. Landis
- Department of Chemistry and Biochemistry, Elizabethtown College, 1 Alpha Drive, Elizabethtown, Pennsylvania
17022, United States
| | - Stephen E. Motika
- Department of Chemistry and Biochemistry, Elizabethtown College, 1 Alpha Drive, Elizabethtown, Pennsylvania
17022, United States
| | - Margaret H. Kench
- Department of Chemistry and Biochemistry, Elizabethtown College, 1 Alpha Drive, Elizabethtown, Pennsylvania
17022, United States
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35
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Takizawa S, Nguyen TMN, Grossmann A, Enders D, Sasai H. Enantioselective Synthesis of α-Alkylidene-γ-Butyrolactones: Intramolecular Rauhut-Currier Reaction Promoted by Acid/Base Organocatalysts. Angew Chem Int Ed Engl 2012; 51:5423-6. [DOI: 10.1002/anie.201201542] [Citation(s) in RCA: 165] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Indexed: 12/18/2022]
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36
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Takizawa S, Nguyen TMN, Grossmann A, Enders D, Sasai H. Enantioselective Synthesis of α-Alkylidene-γ-Butyrolactones: Intramolecular Rauhut-Currier Reaction Promoted by Acid/Base Organocatalysts. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201542] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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37
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Wang T, Liang Y, Yu ZX. Density functional theory study of the mechanism and origins of stereoselectivity in the asymmetric Simmons-Smith cyclopropanation with Charette chiral dioxaborolane ligand. J Am Chem Soc 2011; 133:9343-53. [PMID: 21627114 DOI: 10.1021/ja111330z] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Asymmetric Simmons-Smith reaction using Charette chiral dioxaborolane ligand is a widely applied method for the construction of enantiomerically enriched cyclopropanes. The detailed mechanism and the origins of stereoselectivity of this important reaction were investigated using density functional theory (DFT) calculations. Our computational studies suggest that, in the traditional Simmons-Smith reaction conditions, the monomeric iodomethylzinc allyloxide generated in situ from the allylic alcohol and the zinc reagent has a strong tendency to form a dimer or a tetramer. The tetramer can easily undergo an intramolecular cyclopropanation to give the racemic cyclopropane product. However, when a stoichiometric amount of Charette chiral dioxaborolane ligand is employed, monomeric iodomethylzinc allyloxide is converted into an energetically more stable four-coordinated chiral zinc/ligand complex. The chiral complex has the zinc bonded to the CH(2)I group and coordinated by three oxygen atoms (one from the allylic alcohol and the other two oxygen atoms from the carbonyl oxygen and the ether oxygen in the dioxaborolane ligand), and it can undergo the cyclopropanation reaction easily. Three key factors influencing the enantioselectivity have been identified through examining the cyclopropanation transition states: (1) the torsional strain along the forming C-C bond, (2) the 1,3-allylic strain caused by the chain conformation, and (3) the ring strain generated in the transition states. In addition, the origin of the high anti diastereoselectivity for the substituent on the zinc reagent and the hydroxymethyl group of the allylic alcohol has been rationalized through analyzing the steric repulsion and the ring strain in the cyclopropanation transition states.
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Affiliation(s)
- Tao Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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38
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Rai A, Singh AK, Singh P, Yadav LDS. Stereoselective cascade reactions for construction of polyfunctionalised octahydroquinolines via [2C+2C+1C,1N] cyclisation. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.01.079] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Dermenci A, Selig PS, Domaoal RA, Spasov KA, Anderson KS, Miller SJ. Quasi-Biomimetic Ring Contraction Catalyzed by a Cysteine-Based Nucleophile: Total Synthesis of Sch-642305, Some Analogs and their Putative anti-HIV Activities. Chem Sci 2011; 2. [PMID: 24179673 DOI: 10.1039/c1sc00221j] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cysteine plays a number of important functional and structural roles in Nature, often in the realm of catalysis. Herein, we present an example of a cysteine-catalyzed Rauhut-Currier reaction for a potentially biomimetic synthesis of Sch-642305 and related analogs. In this key step of the synthesis we discuss interesting new discoveries and the importance of substrate-catalyst recognition, as well as cysteine's structural features. Also, we investigate the activity of Sch-642305 and four analogs in HIV-infected T-cells.
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Affiliation(s)
- Alpay Dermenci
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT 06520 -8107 (USA)
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40
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Xie P, Huang Y, Lai W, Meng X, Chen R. Bifunctional phosphine-catalyzed cross-Rauhut–Currier/Michael/aldol condensation triple domino reaction: synthesis of functionalized cyclohexenes. Org Biomol Chem 2011; 9:6707-14. [DOI: 10.1039/c1ob05693j] [Citation(s) in RCA: 39] [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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41
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Basavaiah D, Reddy BS, Badsara SS. Recent contributions from the Baylis-Hillman reaction to organic chemistry. Chem Rev 2010; 110:5447-674. [PMID: 20735052 DOI: 10.1021/cr900291g] [Citation(s) in RCA: 743] [Impact Index Per Article: 53.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Deevi Basavaiah
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India.
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42
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Jung ME, Zhang TH, Lui RM, Gutierrez O, Houk KN. Synthesis of a trans,syn,trans-Dodecahydrophenanthrene via a Bicyclic Transannular Diels−Alder Reaction: Intermediate for the Synthesis of Fusidic Acid. J Org Chem 2010; 75:6933-40. [DOI: 10.1021/jo101533h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael E. Jung
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| | - Ting-Hu Zhang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| | - Rebecca M. Lui
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| | - Osvaldo Gutierrez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
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43
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Basavaiah D, Lenin DV. A Facile Synthesis of Substituted Indenones and Piperidine-2,6-diones from the Baylis-Hillman Acetates. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000739] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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44
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45
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Kirst HA. The spinosyn family of insecticides: realizing the potential of natural products research. J Antibiot (Tokyo) 2010; 63:101-11. [DOI: 10.1038/ja.2010.5] [Citation(s) in RCA: 209] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Fearnley SP, Thongsornkleeb C. Oxazolone cycloadducts as heterocyclic scaffolds for alkaloid construction: synthesis of (+/-)-2-epi-pumiliotoxin C. J Org Chem 2010; 75:933-6. [PMID: 20039614 PMCID: PMC2872181 DOI: 10.1021/jo902172r] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Intramolecular Diels-Alder cycloaddition of N-substituted oxazolone triene I allows direct entry to the functionalized octahydroquinoline II. Further manipulation of this framework by stereo- and regioselective introduction of the 5-methyl substituent, followed by excision of the carbamate, yields (+/-)-2-epi-pumiliotoxin C.
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Affiliation(s)
- Stephen Philip Fearnley
- Department of Chemistry, The City University of New York - The Graduate Center & York College, 94-20 Guy R. Brewer Boulevard, Jamaica, New York, 11451, USA.
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47
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Basavaiah D, Reddy KR. Simple and one-pot synthesis of tri and tetracyclic frameworks containing [1,8]naphthyridin-2-one moiety from the Baylis–Hillman adducts. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.12.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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48
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Shanbhag P, Nareddy PR, Dadwal M, Mobin SM, Namboothiri INN. Rauhut–Currier type homo- and heterocouplings involving nitroalkenes and nitrodienes. Org Biomol Chem 2010; 8:4867-73. [DOI: 10.1039/c0ob00062k] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Abstract
A convergent and highly stereocontrolled total synthesis of the cytotoxic macrolide (+)-superstolide A is described. Key features of this synthesis include the use of bimetallic linchpin 36b for uniting the C(1)-C(15) (43) and the C(20)-C(27) (38) fragments of the natural product, a late-stage Suzuki macrocyclization of 49, and a highly diastereoselective transannular Diels-Alder reaction of macrocyclic octaene 4. In contrast, the intramolecular Diels-Alder reaction of pentaenal 5 provided the desired cycloadduct with lower stereoselectivity (6:1:1).
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Affiliation(s)
- Mariola Tortosa
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458, USA
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50
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Basavaiah D, Lenin DV, Devendar B. A simple protocol for the synthesis of a piperidine-2,6-dione framework from Baylis–Hillman adducts. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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