1
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Ren Y, Shi W, Tang Y, Guo H. Phosphine-catalyzed (3+3) annulation of cinnamaldehyde-derived Morita-Baylis-Hillman carbonates with dinucleophiles. Chem Commun (Camb) 2024; 60:6897-6900. [PMID: 38881324 DOI: 10.1039/d4cc01989j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
The phosphine-catalyzed (3+3) annulation reaction of cinnamaldehyde-derived Morita-Baylis-Hillman (MBH) carbonates with 1,3-dicarbonyl compounds as dinucleophiles has been developed, giving hexahydrochromenone derivatives in high yields with moderate to good diastereoselectivities. The reaction worked through double conjugate addition of 1,3-dicarbonyl compounds to the phosphonium intermediates generated from the cinnamaldehyde-derived MBH carbonates.
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Affiliation(s)
- Yue Ren
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China.
| | - Wangyu Shi
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China.
| | - Yi Tang
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China.
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China.
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2
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Gao Z, Zhou X, Xie L, Wang X, Wang S, Liu H, Guo H. Phosphine-Catalyzed (4 + 2) Annulation of Allenoates Bearing Acidic Hydrogen with 1,1-Dicyanoalkenes. J Org Chem 2024; 89:7169-7174. [PMID: 38679873 DOI: 10.1021/acs.joc.4c00564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
α-succinimide-substituted allenoates were employed as phosphine acceptors in phosphine-catalyzed (4 + 2) annulation with 1,1-dicyanoalkenes. They served as C4 synthons in the annulation reaction under mild reaction conditions and produced hexahydroisoindole derivatives in moderate to high yields with good to excellent diastereoselectivities.
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Affiliation(s)
- Zhenzhen Gao
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, P. R. China
| | - Xiaoming Zhou
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, P. R. China
| | - Lei Xie
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, P. R. China
| | - Xuekun Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, P. R. China
| | - Shiben Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, P. R. China
| | - Honglei Liu
- College of Materials Science and Engineering, Qingdao University, Qing dao, Shandong 266071, P. R. China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
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3
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Ren Y, Shi W, Tang Y, Piao S, Yu S, Wu Y, Guo H. Phosphine-Catalyzed (3 + 2) Annulation of γ-Substituted Cinnamic Aldehyde-Derived Morita-Baylis-Hillman Carbonates through Remote Activation. Org Lett 2023; 25:7374-7379. [PMID: 37782039 DOI: 10.1021/acs.orglett.3c02887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
A series of γ-substituted Morita-Baylis-Hillman (MBH) carbonates were synthesized and subjected to phosphine-catalyzed annulations with electrophilic exocyclic alkenes, giving various valuable spirocyclopentenes in moderate to excellent yields with moderate to excellent diastereoselectivities. A large scope of MBH carbonates bearing γ-hydrogen, alkenyl, and alkynyl substituents was well tolerated. The annulation unprecedentedly involves β-, γ-, and δ-carbons of MBH carbonates.
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Affiliation(s)
- Yue Ren
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Wangyu Shi
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Yi Tang
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Shixiang Piao
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Songcheng Yu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
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4
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Synthesis of Chromone‐Spiroindolinone‐Cyclopentene Derivatives through Phosphine‐Catalyzed (3+2) Annulation of Morita‐Baylis‐Hillman Carbonates with Oxindole‐Chromones. ChemistrySelect 2022. [DOI: 10.1002/slct.202203340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Xu J, Hu Y, Liao J, Du J, Wang L, Wang W, Wu Y, Guo H. Synthesis of Fluoroalkyl Cyclopentenes: Highly Diastereoselective Phosphine‐Catalyzed [3+2] Annulation of β‐Fluoroalkylvinyl Arylsulfones with Morita‐Baylis‐Hillman Carbonates. ChemistrySelect 2022. [DOI: 10.1002/slct.202203184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jiaqing Xu
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Yimin Hu
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Jianning Liao
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Juan Du
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | | | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
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6
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Bagherinejad A, Alizadeh A. A review of the synthetic strategies toward spirobarbiturate-fused 3- to 7-membered rings. Org Biomol Chem 2022; 20:7188-7215. [PMID: 36070341 DOI: 10.1039/d2ob01326f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spiro-connected hexahydropyrimidine-2,4,6-trione heterocyclic rings have received increasing attention from the viewpoint of biological activity and synthetic methods due to the importance of the rigid heterocyclic system and unique orientation of the functional substituents. Since 1900, numerous studies have exploited the synthesis of various spirobarbiturate-fused carbo- and heterocycles by applying different strategies. Due to the importance of barbiturate-based olefins as activated alkenes, these substrates have been utilized in many reactions. In addition, the nucleophilic addition of 1,3-disubstituted barbituric acid to different electrophiles has been applied to prepare highly functionalized spirobarbiturate scaffolds. This short review highlights various strategies for synthesizing spirobarbiturate-fused 3- to 7-membered carbo- and heterocyclic rings and some catalytic diastereoselective and enantioselective chemical reactions to access chiral compounds. The sections are divided by the incorporation of 3- to 7-membered heterocyclic or carbocyclic rings into a spirobarbiturate scaffold, and are presented in different subsections depending on the mechanistic details.
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Affiliation(s)
- Akram Bagherinejad
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
| | - Abdolali Alizadeh
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
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7
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Liao J, Han Q, Liu M, Shi W, Xu J, Wang W, Wu Y, GUO H. Phosphine‐Catalyzed (4+2) Annulation of Alkenes with Acidic Hydrogen‐Tethered Allylic Carbonates. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Min Liu
- China Agricultural University CHINA
| | | | | | - Wei Wang
- China Agricultural University CHINA
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8
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Liu M, Liao J, Dong Y, Shi W, Hu Y, Xu J, Wang W, Xu Y, Guo H. Acidic Hydrogen‐Tethered Allylic Carbonates for Phosphine‐Catalyzed (4+2) Annulation of Sulfamate‐Derived Cyclic Imines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Min Liu
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Jianning Liao
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Yujie Dong
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Wangyu Shi
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Yimin Hu
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Jiaqing Xu
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yong Xu
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
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9
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Boitsov VM, Stepakov AV, Filatov AS, Selivanov SI, Shmakov SV, Larina AG. An Experimental and Theoretical Study of the 1,3-Dipolar Cycloaddition of Alloxan-Derived Azomethine Ylides to Cyclopropenes. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1700-3115] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
AbstractA diastereoselective synthesis of biologically interesting spirobarbiturates has been achieved via [3+2] cycloaddition of alloxan-derived azomethine ylides to 3-R-1,2-diphenylcyclopropenes. With this approach, a range of spirobarbiturate-3-azabicyclo[3.1.0]hexanes and spirobarbiturate-cyclopropa[a]pyrrolizines were obtained in moderate to good yields with excellent diastereoselectivities. DFT calculations (M11 density functional theory) were carried out to shed light on the molecular mechanism of 1,3-dipolar cycloaddition of alloxan-derived azomethine ylides to cyclopropenes. The cytotoxic activity of some obtained compounds against human erythroleukemia (K562) cell line was evaluated in vitro by MTS-assay.
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Affiliation(s)
- Vitali M. Boitsov
- Saint Petersburg National Research Academic University of the Russian Academy of Sciences
| | | | | | | | - Stanislav V. Shmakov
- Saint Petersburg National Research Academic University of the Russian Academy of Sciences
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10
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Liao J, Xu J, Wu Y, Hou Y, GUO H. 4‐(Dimethylamino)pyridine‐Catalyzed (3+2) Annulation of Pyrazoledione‐Derived Morita–Baylis–Hillman Carbonates with 2‐Arylideneindane‐1,3‐diones: An Access to Dispirocyclic Compounds. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Li Y, Du Y, Liu Y, Liu R, Zhou R. Phosphine-catalyzed divergent reactivity of alkynoates with acid anhydrides: chemo- and stereoselective synthesis of polysubstituted olefins and dienes. Org Chem Front 2022. [DOI: 10.1039/d2qo00820c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unprecedented phosphine-catalyzed chemoselective acylesterification, tandem addition and Michael type reaction between alkynoates and acid anhydrides have been developed, enabling efficient synthesis of either the polysubstituted olefins or the multifunctional dienes.
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Affiliation(s)
- Yunxia Li
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yunfeng Du
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yiming Liu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Rongfang Liu
- College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Rong Zhou
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
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12
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Hao Q, He N, Wang Y, Yang X, Wang Y, Zhu Y, Qu L. Theoretical insights into phosphine‐catalyzed [4 + 2] annulation of allenoates with thiazolone‐derived alkenes. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qiqi Hao
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou China
| | - Nan He
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou China
| | - Yi Wang
- International Education College Zhengzhou University of Light Industry Zhengzhou China
| | - Xiaoyan Yang
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou China
| | - Yonghuan Wang
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou China
| | - Yanyan Zhu
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou China
| | - Lingbo Qu
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou China
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13
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Abstract
Organocatalysts are abundantly used for various transformations, particularly to obtain highly enantio- and diastereomeric pure products by controlling the stereochemistry. These applications of organocatalysts have been the topic of several reviews. Organocatalysts have emerged as one of the very essential areas of research due to their mild reaction conditions, cost-effective nature, non-toxicity, and environmentally benign approach that obviates the need for transition metal catalysts and other toxic reagents. Various types of organocatalysts including amine catalysts, Brønsted acids, and Lewis bases such as N-heterocyclic carbene (NHC) catalysts, cinchona alkaloids, 4-dimethylaminopyridine (DMAP), and hydrogen bond-donating catalysts, have gained renewed interest because of their regioselectivity. In this review, we present recent advances in regiodivergent reactions that are governed by organocatalysts. Additionally, we briefly discuss the reaction pathways of achieving regiodivergent products by changes in conditions such as solvents, additives, or the temperature.
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14
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Xu H, Huang RL, Shu Z, Hong R, Zhang Z. Chemoselective synthesis of 5,4'-imidazolinyl spirobarbiturates via NBS-promoted cyclization of unsaturated barbiturates and amidines. Org Biomol Chem 2021; 19:4978-4985. [PMID: 34008679 DOI: 10.1039/d1ob00508a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A selective cyclization of unsaturated barbiturates and amidines promoted by N-bromosuccinimide has been successfully developed to afford a vast variety of 5,4'-imidazolinyl spirobarbiturates in moderate to good yields. The present protocol features broad substrate scope, facile work-up procedure and mild reaction conditions, providing a novel strategy for the highly selective and efficient construction of structurally diverse spiroimidazolines.
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Affiliation(s)
- Hui Xu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application, and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
| | - Rong-Lu Huang
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application, and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
| | - Zhu Shu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application, and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
| | - Ran Hong
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application, and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
| | - Ze Zhang
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application, and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
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15
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Wang L, Zhu H, Peng T, Yang D. Conjugated ynones in catalytic enantioselective reactions. Org Biomol Chem 2021; 19:2110-2145. [PMID: 33625439 DOI: 10.1039/d0ob02521f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Conjugated ynones are easily accessible feedstock and the existence of an alkyne bond endows ynones with different attractive reactivities, thus making them unique substrates for catalytic asymmetric reactions. Their compatibility under organocatalytic, metal-catalyzed as well as cooperative catalytic conditions has resulted in numerous enantioselective transformations. Importantly, conjugated ynones can act as nucleophiles or electrophiles, and serve as easily accessed synthons for different cyclization pathways. This review summarizes the recent literature examples of the catalytic reactions of conjugated ynones and related compounds such as alkyne conjugated α-ketoesters, and classifies these reaction types alongside mechanistic insights whenever possible. We aim to trigger more intensive research in the future to render the asymmetric transformation of ynones as a common and reliable tool for asymmetric synthesis.
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Affiliation(s)
- Linqing Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Haiyong Zhu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Tianyu Peng
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Dongxu Yang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Drug Design & Synthesis, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
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16
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Fu J, Tsapy Takia IR, Chen P, Liu W, Jiang C, Yao W, Zeng X, Wang Y, Han X. Synthesis of 2-chromanone-fused [3.2.0] bicycles through a phosphine-mediated tandem [3 + 2] cyclization/intramolecular Wittig reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo01013a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A phosphine-mediated tandem [3 + 2] cyclization/intramolecular Wittig reaction of alkynone is described. 2-Chromanone-fused bicyclo[3.2.0]heptenones were synthesized in moderate to high yields with remarkably high regio- and diastereoselectivities.
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Affiliation(s)
- Junfeng Fu
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Liuhe Road 318, Hangzhou, 310023, P. R. China
| | - Ingrid Rakielle Tsapy Takia
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Liuhe Road 318, Hangzhou, 310023, P. R. China
| | - Peng Chen
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Liuhe Road 318, Hangzhou, 310023, P. R. China
| | - Wei Liu
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Liuhe Road 318, Hangzhou, 310023, P. R. China
| | - Chengjun Jiang
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Liuhe Road 318, Hangzhou, 310023, P. R. China
| | - Weijun Yao
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Xiaofei Zeng
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P. R. China
| | - Yongjiang Wang
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Liuhe Road 318, Hangzhou, 310023, P. R. China
| | - Xiaoyu Han
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Liuhe Road 318, Hangzhou, 310023, P. R. China
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17
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Liu X, Wang C, Wang X, Ma Z, Meng L, Ding D, Liu J, Chen Y. Synthesis of Spirobarbiturate Piperidin-2-one Derivatives via Cascade Aza-Michael/Michael Cyclization Reaction. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Nagaraju P, Reddy PN, Padmaja P, Ugale VG. Microwave-Assisted Synthesis of Thiazole/Benzothiazole Fused Pyranopyrimidine Derivatives and Evaluation of their Biological Activity. LETT ORG CHEM 2021. [DOI: 10.2174/1570178617999200517130138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new class of phenylbenzo[4,5]thiazolo[3,2-a]pyrano[2,3-d]pyrimidin-5-one and pyrano[
2,3-d]thiazolo[3,2-a]pyrimidine-5-one derivatives have been synthesized via one-pot threecomponent
reaction of 2-hydroxy-4H-benzo[4,5]thiazolo[3,2-a]pyrimidin-4-one and 7-hydroxy-5Hthiazolo[
3,2-a]pyrimidin-5-one with various aromatic aldehydes and (E)-N-methyl-1-(methylthio)-2-
nitroethenamine under microwave irradiation. This transformation involves the formation of thiazole or
benzothiazole fused pyranopyrimidinone ring by the formation of two C-C bonds and one C-O bond in
a single synthetic operation. This rapid one-pot reaction does not require a catalyst, it is solvent-free,
avoids chromatographic purification, and provides good yields. The synthesized compounds were
evaluated for their antiproliferative activity against four cancer cell lines, namely DU 145 (prostate
cancer), MDA-MB-231 (breast cancer), Hela (Human cervical cancer), HT-29 (Human colon cancer)
and HEK293 (human embryonic kidney cells). The results demonstrated that synthesized compounds
were selective in its cytotoxicity to cancer cells compared to normal HEK293 cells. Compound 12h
exhibited the most potent antiproliferative activity against the tested cell lines, while other test compounds
showed weak or moderate antiproliferative activity, among them 12d, 12e and 14d displayed
showed IC50 values in the low micromolar range. Molecular docking studies revealed that these active
heterocyclic molecules bind selectively in the colchicine binding site of tubulin polymer.
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Affiliation(s)
- Pallava Nagaraju
- Department of Chemistry, School of Science, Gitam University, Hyderabad (T.S), 502 329,India
| | | | - Pannala Padmaja
- Centre for Semio Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad,India
| | - Vinod G. Ugale
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Maharashtra,India
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19
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Regioselective synthesis of spirobarbiturate-dihydrofurans and dihydrofuro[2,3-d]pyrimidines via one-pot cascade reaction of barbiturate-based olefins and ethyl acetoacetate. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Reddy TP, Gujral J, Roy P, Ramachary DB. Catalytic Ynone–Amidine Formal [4 + 2]-Cycloaddition for the Regioselective Synthesis of Tricyclic Azepines. Org Lett 2020; 22:9653-9657. [DOI: 10.1021/acs.orglett.0c03711] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T. Prabhakar Reddy
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad,500 046, India
| | - Jagjeet Gujral
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad,500 046, India
| | - Pritam Roy
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad,500 046, India
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21
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Chaudhary B, Kulkarni N, Saiyed N, Chaurasia M, Desai S, Potkule S, Sharma S. β
‐Trifluoromethyl
α
,
β
‐unsaturated Ketones: Efficient Building Blocks for Diverse Trifluoromethylated Molecules. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bharatkumar Chaudhary
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Neeraj Kulkarni
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Nehanaz Saiyed
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Meenakshi Chaurasia
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Surbhi Desai
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Sagar Potkule
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
| | - Satyasheel Sharma
- Department of Natural Products National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER−A) Gandhinagar Gujarat 382355 INDIA
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22
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Gao X, Zhu D, Chen Y, Deng H, Jiang F, Wang W, Wu Y, Guo H. Palladium-Catalyzed [5 + 2] Annulation of Vinylethylene Carbonates with Barbiturate-Derived Alkenes. Org Lett 2020; 22:7158-7163. [DOI: 10.1021/acs.orglett.0c02508] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xing Gao
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P.R. China
| | - Dongyu Zhu
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P.R. China
| | - Yuehua Chen
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P.R. China
| | - Hao Deng
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P.R. China
| | - Feng Jiang
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P.R. China
| | - Wei Wang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P.R. China
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23
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Ni H, Wong YL, Wu M, Han Z, Ding K, Lu Y. Highly Enantioselective [3 + 2] Annulation of 3-Butynoates with β-Trifluoromethyl Enones Promoted by an Amine-Phosphine Binary Catalytic System. Org Lett 2020; 22:2460-2463. [PMID: 32155074 DOI: 10.1021/acs.orglett.0c00681] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report a highly enantioselective [3 + 2] annulation between 3-butynoates and β-trifluoromethyl enones, furnishing trifluoromethylated cyclopentenes with three contiguous stereogenic centers in good yields, high diastereoselectivities, and excellent enantioselectivities. A unique catalytic system consisting of a simple amine and a chiral phosphine was devised, and the synergistic play of Lewis basic amine and phosphine was crucial for alkyne isomerization and subsequent cyclization. The protocol disclosed herein allows facile activation of 3-butynoates in phosphine-mediated asymmetric transformations.
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Affiliation(s)
- Huanzhen Ni
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Yee Lin Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Mingyue Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Zhaobin Han
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Kuiling Ding
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yixin Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, Fujian 359297, PR China.,National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu, PR China, 215123
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24
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Wang CC, Zhou J, Ma ZW, Chen XP, Chen YJ. Synthesis of spirobarbiturate-pyrrolidinones via a domino aza-Michael/S N2 cyclization of barbiturate-derived alkenes with N-alkoxy α-haloamides. Org Biomol Chem 2019; 17:9200-9208. [PMID: 31596301 DOI: 10.1039/c9ob01992h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient domino aza-MIRC (Michael Induced Ring Closure) reaction between barbiturate-derived alkenes and N-alkoxy α-haloamides has been achieved in moderate to excellent yields. This reaction proceeds smoothly under mild conditions via a domino aza-Michael addition/intramolecular SN2 sequence, providing a practical tool in the synthesis of bioactive molecules spirobarbiturate-3-pyrrolidinones.
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Affiliation(s)
- Chuan-Chuan Wang
- Faculty of Science, Henan University of Animal Husbandry and Economy, No. 2 Yingcai Street, Huiji District, Zhengzhou 450044, Henan, PR China
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25
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Facile catalyst-free synthesis of perfluoroalkylated cis-spiropyrimidine-5,1′-quinolizines and pyrano[2,3-d]pyrimidines. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.109411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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26
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Liu H, Lin Y, Zhao Y, Xiao M, Zhou L, Wang Q, Zhang C, Wang D, Kwon O, Guo H. Phosphine-Promoted [4 + 3] Annulation of Allenoate with Aziridines for Synthesis of Tetrahydroazepines: Phosphine-Dependent [3 + 3] and [4 + 3] Pathways. RSC Adv 2019; 9:1214-1221. [PMID: 31565218 PMCID: PMC6764531 DOI: 10.1039/c8ra09852b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this manuscript, phosphine-dependent [3 + 3] and [4 + 3] annulation reactions of allenoate with aziridines were disclosed. The alkyldiphenylphosphine-promoted [4 + 3] annulation of allenoate with aziridines has been achieved under mild conditions, providing biologically interesting functionalized tetrahydroazepines in moderate to excellent yield with moderate to excellent regioselectivity and diastereoselectivity. Phosphine-dependent [3 + 3] and [4 + 3] annulation reactions of allenoate with aziridines were disclosed. The alkyldiphenylphosphine-promoted [4 + 3] annulation produced tetrahydroazepines.![]()
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Affiliation(s)
- Honglei Liu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
| | - Yan Lin
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
| | - Yan Zhao
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
| | - Miaoren Xiao
- Institute of High Energy Physics, Chinese Academy of Science, 19B Yuquan Lu, Shijingshan District, Beijing 100049, P. R. China
| | - Leijie Zhou
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
| | - Qijun Wang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
| | - Cheng Zhang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
| | - Dongqi Wang
- Institute of High Energy Physics, Chinese Academy of Science, 19B Yuquan Lu, Shijingshan District, Beijing 100049, P. R. China
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569.
| | - Hongchao Guo
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China.
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27
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
| | - Leiv K. Sydnes
- Department of Chemistry, University of Bergen, Allégt. 41, Bergen NO-5007, Norway
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
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28
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Li Y, Yu J, Bi Y, Yan G, Huang D. Tandem Reactions of Ynones:viaConjugate Addition of Nitrogen‐, Carbon‐, Oxygen‐, Boron‐, Silicon‐, Phosphorus‐, and Sulfur‐Containing Nucleophiles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900611] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yang Li
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Jian Yu
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Yicheng Bi
- Department of ChemistryQingdao University of Science & Technology Qingdao Shandong People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
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29
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Zhang K, Cai L, Hong S, Kwon O. Phosphine-Catalyzed α-Umpolung-Aldol Reaction for the Synthesis of Benzo[ b]azapin-3-ones. Org Lett 2019; 21:5143-5146. [PMID: 31247774 PMCID: PMC7338222 DOI: 10.1021/acs.orglett.9b01749] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A novel phosphine-catalyzed intermolecular cyclization between 2-sulfonamidobenzaldehyes and ynones is reported. This methodology serves as a conduit for the construction of benzo[ b]azepin-3-ones in good to excellent yields under mild conditions. The resulting 2-benzylidene moieties are formed exclusively in the E-configuration. Mechanistically, this unusual annulation occurs through a phosphine-catalyzed α-umpolung addition, followed by an aldol reaction. One of the benzo[ b]azepin-3-one products was converted to the core structure of 3-amino-[ a]benzazepin-2-one-1-alkanoic acids, many of which function as angiotensin-converting enzyme inhibitors.
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Affiliation(s)
- Kui Zhang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Lingchao Cai
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Sooji Hong
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
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30
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Yan X, Shao P, Song X, Zhang C, Lu C, Liu S, Li Y. Chemoselective syntheses of spirodihydrofuryl and spirocyclopropyl barbiturates via cascade reactions of barbiturate-based olefins and acetylacetone. Org Biomol Chem 2019; 17:2684-2690. [PMID: 30768085 DOI: 10.1039/c9ob00004f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Michael addition initiated ring closure reaction of barbiturate-based olefins and acetylacetone with NBS has been explored. The efficient and chemoselective approach for the synthesis of barbiturate-fused spirocycles was established. Spirodihydrofuryl barbiturates and spirocyclopropyl barbiturates were synthesized selectively via cascade reactions under different basic conditions in moderate to excellent yields. The structure of 2-(4-chlorophenyl)-1,1-diacetyl-5,7-dimethyl-5,7-diazaspiro[2,5]octane-4,6,8-trione was confirmed by single crystal X-ray diffraction analysis.
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Affiliation(s)
- Xuebin Yan
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China.
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31
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Abstract
Since the beginning of the 20th century, numerous research efforts made elegant use of barbituric acid derivatives as building blocks for the elaboration of more complex and useful molecules in the field of pharmaceutical chemistry and material sciences. However, the construction of chiral scaffolds by the catalytic enantioselective transformation of barbituric acid and derivatives has only emerged recently. The specific properties of these rather planar scaffolds, which also encompass either a high Brønsted acidity concerning the native barbituric acid or the marked electrophilic character of alkylidene barbituric acids, required specific developments to achieve efficient asymmetric processes. This review covers the enantioselective catalytic reactions developed for barbituric acid platforms using an organocatalytic and metal-based enantioselective sequences. These achievements currently allow several unique addition and annulation reactions towards the construction of high valued chiral heterocycles from barbituric acid derivatives along with innovative enantioselective developments.
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32
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Huang G, Ren X, Jiang C, Wu JH, Gao G, Wang T. Efficient synthesis of (E)-2-nitromethylcinnamatesviaphosphine-catalyzed tandem α-addition and 1,3-rearrangement. Org Chem Front 2019. [DOI: 10.1039/c9qo00478e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthetic approach for accessing (E)-2-nitromethylcinnamatesviaa phosphine-promoted tandem reaction between substituted nitromethanes and alkynes has been developed.
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Affiliation(s)
- Guofei Huang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Chunhui Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Jia-Hong Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Guowei Gao
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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33
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Cong T, Wang H, Li X, Wu HH, Zhang J. Chiral bifunctional bisphosphine enabled enantioselective tandem Michael addition of tryptamine-derived oxindoles to ynones. Chem Commun (Camb) 2019; 55:9176-9179. [DOI: 10.1039/c9cc04357h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A chiral phosphine-catalyzed tandem Michael addition of tryptamine-derived oxindoles to ynones was developed to synthesize spiro[pyrrolidine-3,3′-oxindole] in good yields, good to excellent enantio- and diastereoselectivities.
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Affiliation(s)
- Tiantian Cong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Huamin Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Xiuzheng Li
- School of Pharmacy
- Anhui Medical University
- Hefei 230032
- P. R. China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Junliang Zhang
- 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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34
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First diastereoselective synthesis of perfluoroalkylated cis-spiropyrido[2,1-a]isoquinoline-1,5’-pyrimidines. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.09.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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35
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Abstract
The hallmark of nucleophilic phosphine catalysis is the initial nucleophilic addition of a phosphine to an electrophilic starting material, producing a reactive zwitterionic intermediate, generally under mild conditions. In this Review, we classify nucleophilic phosphine catalysis reactions in terms of their electrophilic components. In the majority of cases, these electrophiles possess carbon-carbon multiple bonds: alkenes (section 2), allenes (section 3), alkynes (section 4), and Morita-Baylis-Hillman (MBH) alcohol derivatives (MBHADs; section 5). Within each of these sections, the reactions are compiled based on the nature of the second starting material-nucleophiles, dinucleophiles, electrophiles, and electrophile-nucleophiles. Nucleophilic phosphine catalysis reactions that occur via the initial addition to starting materials that do not possess carbon-carbon multiple bonds are collated in section 6. Although not catalytic in the phosphine, the formation of ylides through the nucleophilic addition of phosphines to carbon-carbon multiple bond-containing compounds is intimately related to the catalysis and is discussed in section 7. Finally, section 8 compiles miscellaneous topics, including annulations of the Hüisgen zwitterion, phosphine-mediated reductions, iminophosphorane organocatalysis, and catalytic variants of classical phosphine oxide-generating reactions.
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Affiliation(s)
- Hongchao Guo
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yi Chiao Fan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
| | - Zhanhu Sun
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yang Wu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
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36
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Affiliation(s)
- Huanzhen Ni
- 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
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37
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Alcaide B, Almendros P, Lázaro-Milla C, Delgado-Martínez P. Divergence in Ynone Reactivity: Atypical Cyclization by 3,4-Difunctionalization versus Rare Bis(cyclization). Chemistry 2018; 24:8186-8194. [DOI: 10.1002/chem.201800630] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de, Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General; Consejo Superior de Investigaciones Científicas, IQOG-CSIC; Juan de la Cierva 3 28006 Madrid Spain
| | - Carlos Lázaro-Milla
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de, Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
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38
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Ramachary DB, Prabhakar Reddy T, Suresh Kumar A. Organocatalytic umpolung annulative dimerization of ynones for the synthesis of 5-alkylidene-2-cyclopentenones. Org Biomol Chem 2018; 15:9785-9789. [PMID: 29143846 DOI: 10.1039/c7ob02424j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A novel phosphine-catalyzed umpolung [3 + 2]-annulative dimerization of ynones was developed to furnish functionally rich 5-alkylidene-2-cyclopentenones. In this protocol, ynone acts as both C2 and C3 synthons, which undergo [3 + 2]-annulative dimerization.
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39
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Zhu Y, Wang Z, Zhang J, Yu J, Yan L, Li Y, Chen L, Yan X. An Organocatalytic Synthesis of Chiral Pyrano[2,3-d
]pyrimidines through [3+3] Annulation of 1,3-Dimethyl-barbituric Acid with 2-(1-Alkynyl)-2-alken-1-ones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701581] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yali Zhu
- School of Chemical Engineering and Technology; Tianjin University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin P. R. China
| | - Zhonghe Wang
- School of Chemical Engineering and Technology; Tianjin University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin P. R. China
| | - Jing Zhang
- School of Chemical Engineering and Technology; Tianjin University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin P. R. China
| | - Jia Yu
- School of Chemical Engineering and Technology; Tianjin University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin P. R. China
| | - Lijuan Yan
- School of Chemical Engineering and Technology; Tianjin University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin P. R. China
| | - Yang Li
- School of Chemical Engineering and Technology; Tianjin University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin P. R. China
- Tianjin Engineering Research Center of Functional Fine Chemicals; 300350 Tianjin P. R. China
| | - Ligong Chen
- School of Chemical Engineering and Technology; Tianjin University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin P. R. China
- Tianjin Engineering Research Center of Functional Fine Chemicals; 300350 Tianjin P. R. China
| | - Xilong Yan
- School of Chemical Engineering and Technology; Tianjin University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin P. R. China
- Tianjin Engineering Research Center of Functional Fine Chemicals; 300350 Tianjin P. R. China
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40
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Ni H, Tang X, Zheng W, Yao W, Ullah N, Lu Y. Enantioselective Phosphine-Catalyzed Formal [4+4] Annulation of α,β-Unsaturated Imines and Allene Ketones: Construction of Eight-Membered Rings. Angew Chem Int Ed Engl 2017; 56:14222-14226. [DOI: 10.1002/anie.201707183] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/12/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Huanzhen Ni
- Graduate School for Integrative Sciences & Engineering (NGS); National University of Singapore; 28 Medical Drive 117456 Singapore Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Xiaodong Tang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Wenrui Zheng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Weijun Yao
- Department of chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 P. R. China
| | - Nisar Ullah
- Chemistry Department; King Fahd University of Petroleum and Materials; Dhahran 31261 Saudi Arabia
| | - Yixin Lu
- Graduate School for Integrative Sciences & Engineering (NGS); National University of Singapore; 28 Medical Drive 117456 Singapore Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
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41
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Ni H, Tang X, Zheng W, Yao W, Ullah N, Lu Y. Enantioselective Phosphine-Catalyzed Formal [4+4] Annulation of α,β-Unsaturated Imines and Allene Ketones: Construction of Eight-Membered Rings. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707183] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Huanzhen Ni
- Graduate School for Integrative Sciences & Engineering (NGS); National University of Singapore; 28 Medical Drive 117456 Singapore Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Xiaodong Tang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Wenrui Zheng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Weijun Yao
- Department of chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 P. R. China
| | - Nisar Ullah
- Chemistry Department; King Fahd University of Petroleum and Materials; Dhahran 31261 Saudi Arabia
| | - Yixin Lu
- Graduate School for Integrative Sciences & Engineering (NGS); National University of Singapore; 28 Medical Drive 117456 Singapore Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
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