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Kravljanac P, Anderson EA. Synthetic Study toward Triterpenes from the Schisandraceae Family of Natural Products. Molecules 2023; 28:molecules28114468. [PMID: 37298943 DOI: 10.3390/molecules28114468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Triterpenoid natural products from the Schisandraceae family have long presented a significant synthetic challenge. Lancifodilactone I, a member of the family not previously synthesized, was identified as a key natural product target, from which many other members could be synthesized. We envisaged that the core ring system of lancifodilactone I could be accessed by a strategy involving palladium-catalysed cascade cyclisation of a bromoenynamide, via carbopalladation, Suzuki coupling and 8π-electrocyclisation, to synthesize the core 7,8-fused ring system. Exploration of this strategy on model systems resulted in efficient syntheses of 5,6- and 5,8-fused systems in high yields, which represent the first such cyclisation where the ynamide nitrogen atom is 'external' to the forming ring system. The enamide functionality resident in the cascade cyclisation product was found to be less nucleophilic than the accompanying tri-/tetrasubstituted alkene(s), enabling regioselective oxidations. Application of this strategy to 7,6-, and 7,8-fused systems, and ultimately the 'real' substrate, was ultimately thwarted by the difficulty of 7-membered ring closure, leading to side product formation. Nevertheless, a tandem bromoenynamide carbopalladation, Suzuki coupling and 6/8π-electrocyclisation was shown to be a highly efficient tactic for the formation of bicyclic enamides, which may find applications in other synthetic contexts.
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Affiliation(s)
- Pavle Kravljanac
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Edward A Anderson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
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2
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Liu L, Du L, Li B. Recent advances in 8π electrocyclization reactions. Chem Commun (Camb) 2023; 59:670-687. [PMID: 36597987 DOI: 10.1039/d2cc04805a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Medium-ring systems, which constitute a class of structurally intriguing and biologically important molecules, are present in many natural products and pharmaceuticals. However, the construction of these skeletons tends to be difficult because of the torsional strain of the medium-sized ring, and control of the selectivity is also challenging in these flexible skeletons. Electrocyclization is one of the most straightforward methods to construct medium-sized rings and this process typically proceeds in a stereospecific manner, resulting in the stereo-controlled formation of two neighboring stereocenters. At present, there are few studies on 8π electrocyclization, mainly focusing on the synthesis of small molecules, while the applications in the synthesis of functional materials and biological contexts are rare. This feature article highlights recent advances, from 2000 to 2022, in the 8π electrocyclization reaction. This study is organized into four sections based on the size/composition of the target ring, including the synthesis of aza-seven-membered, cycloheptene, cyclooctene and bicyclo[4,2,0]octane frameworks. We expect that this feature article will provide beneficial guidance for the selective construction of medium-ring skeletons.
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Affiliation(s)
- Lei Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
| | - Luan Du
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
| | - Baosheng Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
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Ghosh T, Biswas D, Bhakta S. Palladium-Catalyzed Synthesis of Fused Carbo- and Heterocycles: Recent Advances. Chem Asian J 2022; 17:e202200725. [PMID: 36065137 DOI: 10.1002/asia.202200725] [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: 07/10/2022] [Revised: 09/03/2022] [Indexed: 11/10/2022]
Abstract
The use of palladium catalysts in fused ring synthesis has been increasingly noteworthy in recent years in organic synthesis. It has a lot of potential compared to other transition metal catalysts, because of its one-of-a-kind feature that makes them more widely applicable in a variety of disciplines application. Palladium is important in a variety of Heck processes, including intramolecular, intermolecular, and reductive Heck reactions, which produce diverse carbocycles and heterocycles of biological importance. Under optimal reaction conditions, carbocyclization or heterocyclization occurs, resulting in the production of numerous structural building blocks of naturally occurring compounds. Beside intramolecular Heck-type reactions, cycloaddition, cycloalkylation, oxidative coupling, C-H functionalization, cross-coupling reactions, and carboamidation reactions have also been employed extensively to access fused carbo- and heterocycles of immense biological importance. This review article provides a well-summarized discussion (since 2001) on fused carbo- and heterocycle ring synthesis using palladium catalysts, overviewing their applications, and mechanistic insights.
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Affiliation(s)
- Tapas Ghosh
- Maulana Abul Kalam Azad University of Technology, Applied Sciences, Simhat, Haringhata, 741249, Haringhata, INDIA
| | - Diptam Biswas
- Maulana Abul Kalam Azad University of Technology, Applied Chemistry, INDIA
| | - Sayantika Bhakta
- Maulana Abul Kalam Azad University of Technology, Applied Chemistry, INDIA
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4
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Qing Z, Mao P, Wang T, Zhai H. Asymmetric Total Syntheses of Cephalotane-Type Diterpenoids Cephanolides A-D. J Am Chem Soc 2022; 144:10640-10646. [PMID: 35653731 DOI: 10.1021/jacs.2c03978] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cephanolides A-D are cephalotane-type diterpenoids featuring a novel 6/6/6/5 tetracyclic core embedded with a bridged δ-lactone. The asymmetric and divergent total syntheses of cephanolides A-D have been accomplished, proceeding in 11-14 steps from a known alcohol. The salient features of the present work include (i) a substrate-controlled diastereoselective intermolecular Diels-Alder reaction to form the 6-6 cis-fused rings, (ii) a palladium-catalyzed formal bimolecular [2 + 2 + 2] cycloaddition reaction via a partially intermolecular cascade reaction sequence involving multiple carbometalations to rapidly install the key tetracyclic skeleton, and (iii) lactonization and late-stage oxidative diversification to complete total syntheses of the four benzenoid cephanolides.
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Affiliation(s)
- Zhineng Qing
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Peng Mao
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Tie Wang
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.,Shenzhen Bay Laboratory, Shenzhen 518055, China.,Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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5
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Nori V, Arcadi A, Carlone A, Marinelli F, Chiarini M. Palladium-catalyzed regio- and stereoselective synthesis of aryl and 3-indolyl-substituted 4-methylene-3,4-dihydroisoquinolin-1( 2H)-ones. Beilstein J Org Chem 2020; 16:1084-1091. [PMID: 32550923 PMCID: PMC7277796 DOI: 10.3762/bjoc.16.95] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 05/05/2020] [Indexed: 11/23/2022] Open
Abstract
Cascade cyclocarbopalladation of the readily available aryl/alkyl-substituted propargylic amides containing an aryl iodide moiety, followed by Suzuki–Miyaura coupling with arylboronic acids, allowed an efficient regio- and stereoselective synthesis of tetrasubstituted 4-methylene-3,4-dihydroisoquinolin-1(2H)-ones. Moreover, cascade cyclocarbopalladation, followed by the reaction with 2-alkynyltrifluoroacetanilides, accomplished a double cyclization to afford challenging 4-methylene-3,4-dihydroisoquinolin-1(2H)-ones bearing a 3-indolyl substituent through aminopalladation/reductive elimination.
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Affiliation(s)
- Valeria Nori
- Dipartimento di Scienze Fisiche e Chimiche, Università di L'Aquila, Via Vetoio, 67010 Coppito (AQ), Italy
| | - Antonio Arcadi
- Dipartimento di Scienze Fisiche e Chimiche, Università di L'Aquila, Via Vetoio, 67010 Coppito (AQ), Italy
| | - Armando Carlone
- Dipartimento di Scienze Fisiche e Chimiche, Università di L'Aquila, Via Vetoio, 67010 Coppito (AQ), Italy
| | - Fabio Marinelli
- Dipartimento di Scienze Fisiche e Chimiche, Università di L'Aquila, Via Vetoio, 67010 Coppito (AQ), Italy
| | - Marco Chiarini
- Facoltà di Bioscienze e Tecnologie Agro-alimentari e Ambientali, Università di Teramo, Via Balzarini 1, 64100 Teramo (Te), Italy
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6
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Yang P, Li J, Sun L, Yao M, Zhang X, Xiao WL, Wang JH, Tian P, Sun HD, Puno PT, Li A. Elucidation of the Structure of Pseudorubriflordilactone B by Chemical Synthesis. J Am Chem Soc 2019; 142:13701-13708. [PMID: 31707779 DOI: 10.1021/jacs.9b09699] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Peng Yang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Li Sun
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ming Yao
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiang Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Wei-Lie Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jian-Hua Wang
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ping Tian
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Pema-Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, China
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7
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Castanheiro T, Schoenfelder A, Suffert J, Donnard M, Gulea M. Comparative study on the reactivity of propargyl and alkynyl sulfides in palladium-catalyzed domino reactions. CR CHIM 2017. [DOI: 10.1016/j.crci.2016.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Hu Y, Hu Y, Hu Q, Ma J, Lv S, Liu B, Wang S. Direct Access to Fused Salicylaldehydes and Salicylketones from Tetraynes. Chemistry 2017; 23:4065-4072. [PMID: 27992086 DOI: 10.1002/chem.201605785] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Indexed: 11/11/2022]
Abstract
A facile method for the synthesis of fused, multifunctionalized salicylaldehydes and salicylketones by a one-pot, three-step cascade hexadehydro-Diels-Alder (HDDA) reaction of tetraynes followed by an intermolecular aldehyde/ketone reaction and hydroxylation is reported. Target compounds were prepared by the condensation of malonates with 3-bromo-1-propyne, and the resulting 2,2-di(1-propyn-3-yl)malonates underwent cross-coupling with phenylethynyl bromides to afford 2,2-di(5-phenyl-2,4-pentadiynyl)malonates, which underwent intramolecular cyclization to produce bicyclic salicylaldehydes. The overall transformation involves the formation of four new C-C bonds and one new Caryl -O bond through both intramolecular and intermolecular reactions. The reaction is easy to perform, proceeds under mild conditions, and exhibits excellent regioselectivity. Water, a simple and readily available reagent, was employed as the OH source. A plausible reaction mechanism is proposed for this new annulation based on isotopic substitution experiments.
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Affiliation(s)
- Yimin Hu
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Functional Molecular-Based Materials, Institute of Organic Chemistry, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
| | - Yadong Hu
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Functional Molecular-Based Materials, Institute of Organic Chemistry, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
| | - Qiong Hu
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Functional Molecular-Based Materials, Institute of Organic Chemistry, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
| | - Jie Ma
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Functional Molecular-Based Materials, Institute of Organic Chemistry, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
| | - Shuang Lv
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Functional Molecular-Based Materials, Institute of Organic Chemistry, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
| | - Baohua Liu
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Functional Molecular-Based Materials, Institute of Organic Chemistry, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
| | - Shaowu Wang
- Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Functional Molecular-Based Materials, Institute of Organic Chemistry, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
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9
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Li X, Cheong PHY, Carter RG. Schinortriterpenoids: A Case Study in Synthetic Design. Angew Chem Int Ed Engl 2017; 56:1704-1718. [DOI: 10.1002/anie.201609372] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 01/13/2023]
Affiliation(s)
- Xin Li
- Chemistry Department; Oregon State University; Gilbert Hall Room 153 Corvallis OR 9733I USA
| | - Paul Ha-Yeon Cheong
- Chemistry Department; Oregon State University; Gilbert Hall Room 153 Corvallis OR 9733I USA
| | - Rich G. Carter
- Chemistry Department; Oregon State University; Gilbert Hall Room 153 Corvallis OR 9733I USA
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10
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Li X, Cheong PHY, Carter RG. Schinortriterpenoide: eine Fallstudie in Synthesedesign. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201609372] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xin Li
- Chemistry Department; Oregon State University; Gilbert Hall Room 153 Corvallis OR 9733I USA
| | - Paul Ha-Yeon Cheong
- Chemistry Department; Oregon State University; Gilbert Hall Room 153 Corvallis OR 9733I USA
| | - Rich G. Carter
- Chemistry Department; Oregon State University; Gilbert Hall Room 153 Corvallis OR 9733I USA
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11
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Yang P, Yao M, Li J, Li Y, Li A. Total Synthesis of Rubriflordilactone B. Angew Chem Int Ed Engl 2016; 55:6964-8. [DOI: 10.1002/anie.201601915] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Peng Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Ming Yao
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yong Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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12
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Affiliation(s)
- Peng Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Ming Yao
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yong Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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13
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Shi L, Yang Z. Exploring the Complexity-Generating Features of the Pauson-Khand Reaction from a Synthetic Perspective. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600123] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Yang M, Yang X, Sun H, Li A. Total Synthesis of Ileabethoxazole, Pseudopteroxazole, andseco-Pseudopteroxazole. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510568] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ming Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xiaowen Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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15
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Yang M, Yang X, Sun H, Li A. Total Synthesis of Ileabethoxazole, Pseudopteroxazole, and seco
-Pseudopteroxazole. Angew Chem Int Ed Engl 2016; 55:2851-5. [DOI: 10.1002/anie.201510568] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Ming Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xiaowen Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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16
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Campbell CD, Greenaway RL, Holton OT, Walker PR, Chapman HA, Russell CA, Carr G, Thomson AL, Anderson EA. Ynamide carbopalladation: a flexible route to mono-, bi- and tricyclic azacycles. Chemistry 2015; 21:12627-39. [PMID: 26189754 PMCID: PMC4557052 DOI: 10.1002/chem.201501710] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Indexed: 11/09/2022]
Abstract
Bromoenynamides represent precursors to a diversity of azacycles by a cascade sequence of carbopalladation followed by cross-coupling/electrocyclization, or reduction processes. Full details of our investigations into intramolecular ynamide carbopalladation are disclosed, which include the first examples of carbopalladation/cross-coupling reactions using potassium organotrifluoroborate salts; and an understanding of factors influencing the success of these processes, including ring size, and the nature of the coupling partner. Additional mechanistic observations are reported, such as the isolation of triene intermediates for electrocyclization. A variety of hetero-Diels-Alder reactions using the product heterocycles are also described, which provide insight into Diels-Alder regioselectivity.
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Affiliation(s)
- Craig D Campbell
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA (U.K.) edward E-mail:
| | - Rebecca L Greenaway
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA (U.K.) edward E-mail:
| | - Oliver T Holton
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA (U.K.) edward E-mail:
| | - P Ross Walker
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA (U.K.) edward E-mail:
| | - Helen A Chapman
- Syngenta Ltd. Jealott's Hill International Research CentreBracknell, Berkshire, RG42 6EY (U.K.)
| | - C Adam Russell
- Syngenta Ltd. Jealott's Hill International Research CentreBracknell, Berkshire, RG42 6EY (U.K.)
| | - Greg Carr
- AstraZenecaAlderley Park, Macclesfield, SK10 4TF (U.K.)
| | - Amber L Thomson
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA (U.K.) edward E-mail:
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA (U.K.) edward E-mail:
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17
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Li J, Yang P, Yao M, Deng J, Li A. Total Synthesis of Rubriflordilactone A. J Am Chem Soc 2014; 136:16477-80. [DOI: 10.1021/ja5092563] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jian Li
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Peng Yang
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ming Yao
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jun Deng
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ang Li
- State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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18
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Castanheiro T, Donnard M, Gulea M, Suffert J. Cyclocarbopalladation/Cross-Coupling Cascade Reactions in Sulfide Series: Access to Sulfur Heterocycles. Org Lett 2014; 16:3060-3. [DOI: 10.1021/ol501165h] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Thomas Castanheiro
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS-Unistra, Faculté de Pharmacie, Université de Strasbourg, 74 Route du Rhin, Illkirch, France
| | - Morgan Donnard
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS-Unistra, Faculté de Pharmacie, Université de Strasbourg, 74 Route du Rhin, Illkirch, France
| | - Mihaela Gulea
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS-Unistra, Faculté de Pharmacie, Université de Strasbourg, 74 Route du Rhin, Illkirch, France
| | - Jean Suffert
- Laboratoire d’Innovation
Thérapeutique, UMR 7200 CNRS-Unistra, Faculté de Pharmacie, Université de Strasbourg, 74 Route du Rhin, Illkirch, France
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19
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Naveen K, Muralidharan D, Perumal PT. Synthesis of Tetrasubstituted Olefins by Palladium-Catalyzed Double Heck Cyclization of Bromoenynes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301806] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Cordonnier MCA, Kan SBJ, Gockel B, Goh SS, Anderson EA. Carbopalladation of bromoene-alkynylsilanes: mechanistic insights and synthesis of fused-ring bicyclic silanes and phenols. Org Chem Front 2014. [DOI: 10.1039/c4qo00123k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Palladium-catalyzed cyclizations of silylated bromoenynes lead to bicyclic cyclohexadienes that are precursors to enones and phenols. Novel cyclization pathways and mechanistic insights are also disclosed.
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Affiliation(s)
| | | | - Birgit Gockel
- Chemistry Research Laboratory
- University of Oxford
- Oxford, UK
| | - Shermin S. Goh
- Chemistry Research Laboratory
- University of Oxford
- Oxford, UK
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21
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Muzart J. Three to seven C–C or C–heteroatom bonds from domino reactions involving a Heck process. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.061] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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22
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Arcadi A, Blesi F, Cacchi S, Fabrizi G, Goggiamani A, Marinelli F. Palladium-Catalyzed Cascade Reactions of 1-(3-Arylprop-2-ynyloxy)-2-bromo Benzene Derivatives with Organoboron Compounds. J Org Chem 2013; 78:4490-8. [DOI: 10.1021/jo400503f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Antonio Arcadi
- Dipartimento di Scienze Fisiche
e Chimiche, Università di L’Aquila, Via Vetoio, 67010, Coppito (AQ), Italy
| | - Federico Blesi
- Dipartimento di Scienze Fisiche
e Chimiche, Università di L’Aquila, Via Vetoio, 67010, Coppito (AQ), Italy
| | - Sandro Cacchi
- Dipartimento di Chimica e Tecnologie del Farmaco,
Sapienza, Università di Roma, P.le
A. Moro 5, 00185, Rome, Italy
| | - Giancarlo Fabrizi
- Dipartimento di Chimica e Tecnologie del Farmaco,
Sapienza, Università di Roma, P.le
A. Moro 5, 00185, Rome, Italy
| | - Antonella Goggiamani
- Dipartimento di Chimica e Tecnologie del Farmaco,
Sapienza, Università di Roma, P.le
A. Moro 5, 00185, Rome, Italy
| | - Fabio Marinelli
- Dipartimento di Scienze Fisiche
e Chimiche, Università di L’Aquila, Via Vetoio, 67010, Coppito (AQ), Italy
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23
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Greenaway RL, Campbell CD, Chapman HA, Anderson EA. Reductive Cyclization of Bromoenynamides with Alcohols as Hydride Source: Synthesis and Reactions of 2-Amidodienes. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200703] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Abe T, Ikeda T, Choshi T, Hibino S, Hatae N, Toyata E, Yanada R, Ishikura M. Total Synthesis of Calothrixins A and B by Palladium-Catalyzed Tandem Cyclization/Cross-Coupling Reaction of Indolylborate. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200657] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Simonetti SO, Larghi EL, Bracca ABJ, Kaufman TS. Synthesis of the unique angular tricyclic chromone structure proposed for aspergillitine, and its relationship with alkaloid TMC-120B. Org Biomol Chem 2012; 10:4124-34. [DOI: 10.1039/c2ob25067e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Greenaway RL, Campbell CD, Holton OT, Russell CA, Anderson EA. Palladium-Catalyzed Cascade Cyclization of Ynamides to Azabicycles. Chemistry 2011; 17:14366-70. [DOI: 10.1002/chem.201102880] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Indexed: 11/12/2022]
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27
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Construction of 3-allylidene-4-vinyltetrahydrofurans and 3-allylidene-4-vinylpyrrolidines via sequential domino allylation/olefination of C–C triple bonds. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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28
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Abe T, Ikeda T, Yanada R, Ishikura M. Concise Total Synthesis of Calothrixins A and B. Org Lett 2011; 13:3356-9. [DOI: 10.1021/ol201107a] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan, and Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Toshiaki Ikeda
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan, and Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan, and Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Minoru Ishikura
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan, and Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
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29
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Vlaar T, Ruijter E, Orru RVA. Recent Advances in Palladium-Catalyzed Cascade Cyclizations. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000979] [Citation(s) in RCA: 225] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Hayashi R, Feltenberger JB, Lohse AG, Walton MC, Hsung RP. An efficient and practical entry to 2-amido-dienes and 3-amido-trienes from allenamides through stereoselective 1,3-hydrogen shifts. Beilstein J Org Chem 2011; 7:410-20. [PMID: 21512601 PMCID: PMC3079123 DOI: 10.3762/bjoc.7.53] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2011] [Accepted: 03/16/2011] [Indexed: 12/16/2022] Open
Abstract
Preparations of de novo acyclic 2-amido-dienes and 3-amido-trienes through 1,3-hydrogen shifts from allenamides are described. These 1,3-hydrogen shifts could be achieved thermally or they could be promoted by the use of Brønsted acids. Under either condition, these processes are highly regioselective in favour of the α-position, and highly stereoselective in favour of the E-configuration. In addition, 6π-electron electrocyclic ring-closure could be carried out with 3-amido-trienes to afford cyclic 2-amido-dienes, and such electrocyclic ring-closure could be rendered in tandem with the 1,3-hydrogen shift.
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Affiliation(s)
- Ryuji Hayashi
- Department of Chemistry and Division of Pharmaceutical Sciences, University of Wisconsin, Madison, WI 53705
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31
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32
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Hayashi R, Walton MC, Hsung RP, Schwab JH, Yu X. Stereoselective 6π-electron electrocyclic ring closures of 2-halo-amidotrienes via a remote 1,6-asymmetric induction. Org Lett 2010; 12:5768-71. [PMID: 21090590 DOI: 10.1021/ol102693e] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A diastereoselective 6π-electrocyclic ring closure employing halogen-substituted 3-amidotrienes via a 1,6-remote asymmetric induction is described. This new asymmetric manifold for pericyclic ring closure further underscores the significance of the allenamide chemistry.
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Affiliation(s)
- Ryuji Hayashi
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53705, USA
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33
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Meng TJ, Hu YM, Sun YJ, Zhu T, Wang S. Coupling/cyclization of 1,6-enynes with aryl halides: an efficient and general route for the synthesis of functionalized hexahydroindole and hexahydrobenzofuran derivatives. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.09.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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34
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Hayashi R, Feltenberger JB, Hsung RP. Torquoselective ring closures of chiral amido trienes derived from allenamides. A tandem allene isomerization-pericyclic ring-closure-intramolecular Diels-Alder cycloaddition. Org Lett 2010; 12:1152-5. [PMID: 20170149 PMCID: PMC2862010 DOI: 10.1021/ol902821w] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A new torquoselective ring-closure of chiral amide-substituted 1,3,5-hexatrienes and its application in tandem with [4 + 2] cycloaddition are described. The trienes were derived via either a 1,3-H or 1,3-H-1,7-H shift of alpha-substituted allenamides, and the entire sequence through the [4 + 2] cycloaddition could be in tandem from allenamides.
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Affiliation(s)
- Ryuji Hayashi
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, WI 53705
| | - John B. Feltenberger
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, WI 53705
| | - Richard P. Hsung
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, WI 53705
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35
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García-Rubín S, Varela JA, Castedo L, Saá C. 6πe− versus 8πe− Electrocyclization of 1-Aryl- and Heteroaryl-Substituted (1Z,3Z)-1,3,5-Hexatrienes: A Matter of Aromaticity. Org Lett 2009; 11:983-6. [DOI: 10.1021/ol802925q] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Silvia García-Rubín
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Jesús A. Varela
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Luis Castedo
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carlos Saá
- Departamento de Química Orgánica, Facultad de Química, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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36
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Jana R, Chatterjee I, Samanta S, Ray JK. Novel and Rapid Palladium-Assisted 6π Electrocyclic Reaction Affording 9,10-Dihydrophenanthrene and Its Analogues. Org Lett 2008; 10:4795-7. [DOI: 10.1021/ol801882t] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rathin Jana
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Indranil Chatterjee
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Shubhankar Samanta
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Jayanta K. Ray
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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37
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Cordonnier MCA, Jennifer Kan SB, Anderson EA. A palladium-mediated cascade cyclisation approach to the CDE cores of rubriflordilactone A and lancifodilactone G. Chem Commun (Camb) 2008:5818-20. [DOI: 10.1039/b814360a] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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