1
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Diastereodivergent formal [4 + 1] cycloaddition of azoalkenes as one-carbon synthons. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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2
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Hussain Y, Tamanna, Sharma M, Kumar A, Chauhan P. Recent development in asymmetric organocatalytic domino reactions involving 1,6-addition as a key step. Org Chem Front 2022. [DOI: 10.1039/d1qo01561c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This article highlights the significant development in stereoselective domino reactions involving 1,6-addition as a crucial step.
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Affiliation(s)
- Yaseen Hussain
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221, J&K, India
| | - Tamanna
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221, J&K, India
| | - Manisha Sharma
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221, J&K, India
| | - Akshay Kumar
- Department of Chemistry, DAV University, Pathankot – Jalandhar Road, Jalandhar 144001, Punjab, India
| | - Pankaj Chauhan
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221, J&K, India
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3
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Enantioselective 1,6‐Conjugate Addition of Dialkyl α‐Diazo Methylphosphonate to
para
‐Quinone Methides. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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4
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Parida C, Pan SC. Organocatalytic asymmetric Michael/acyl transfer reaction between α-nitroketones and 4-arylidenepyrrolidine-2,3-diones. Beilstein J Org Chem 2021; 17:1447-1452. [PMID: 34221173 PMCID: PMC8218544 DOI: 10.3762/bjoc.17.100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/31/2021] [Indexed: 01/04/2023] Open
Abstract
An organocatalytic asymmetric Michael/acyl transfer reaction between α-nitroketones and 4-arylidenepyrrolidine-2,3-diones is reported. A bifunctional thiourea catalyst was found to be effective for this reaction. With 10 mol % of the catalyst, good results were attained for a variety of 1,5-dihydro-2H-pyrrol-2-ones under mild reaction conditions.
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Affiliation(s)
- Chandrakanta Parida
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam, 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam, 781039, India
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5
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Cheng S, Liu H, Jing Y, Cao L, Zhang X. Tandem Conjugate Addition/Aromatization/Acyl Transfer Reaction between 3‐Aryl‐2‐nitropropanoates and Quinone Monoimines. ChemistrySelect 2021. [DOI: 10.1002/slct.202100557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shao‐Bing Cheng
- Key Laboratory of Asymmetric Synthesis and Chiraltechnology of Sichuan Province Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hui Liu
- Key Laboratory of Asymmetric Synthesis and Chiraltechnology of Sichuan Province Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yi Jing
- Key Laboratory of Asymmetric Synthesis and Chiraltechnology of Sichuan Province Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lian‐Yi Cao
- Key Laboratory of Asymmetric Synthesis and Chiraltechnology of Sichuan Province Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiao‐Mei Zhang
- Key Laboratory of Asymmetric Synthesis and Chiraltechnology of Sichuan Province Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 China
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6
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Qiu ZW, Xu XT, Pan HP, Jia ZS, Ma AJ, Peng JB, Du JY, Feng N, Li BQ, Zhang XZ. Brønsted Acid-Catalyzed Formal (3+3)-Annulation of Propargylic (Aza)- para-Quinone Methides with 4-Hydroxycoumarins and 1,3-Dicarbonyl Compounds. J Org Chem 2021; 86:6075-6089. [PMID: 33820419 DOI: 10.1021/acs.joc.0c02844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Herein, we describe a highly effective 1,8-conjugate-addition-mediated formal (3+3)-annulation of (aza)-para-quinone methides in situ generated from propargylic alcohols with 4-hydroxycoumarins and 1,3-dicarbonyl compounds under the catalysis of a Brønsted acid. This methodology affords efficient and practical access to synthetically important and highly functionalized pyranocoumarins and pyrans in excellent yields under mild conditions. Importantly, these products exhibit impressive inhibitory activity toward α-glucosidase.
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Affiliation(s)
- Zong-Wang Qiu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Han-Peng Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Zhen-Sheng Jia
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Bao Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
| | - Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China
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7
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Zhu C, Han MY, Liang XX, Guan B, Li P, Wang L. Hydrogen-Bond-Assisted Sequential Reaction of Silyl Glyoxylates: Stereoselective Synthesis of Silyl Enol Ethers. Org Lett 2021; 23:54-59. [PMID: 33320686 DOI: 10.1021/acs.orglett.0c03683] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel hydrogen-bond-assisted sequential reaction of silyl glyoxylates is described. This method provides an efficient strategy for the synthesis of silyl enol ethers with high selectivity. In these transformations, hydrogen bonds from 2-nitroethanol and its derivatives are critical to the stereochemical outcome. Both E- and Z-isomers are achieved via Henry reaction/Brook rearrangement/elimination and Henry reaction/Brook rearrangement/retro-Henry reaction/elimination processes, respectively (up to 99:1 Z-selectivity, and 9.2:1 E-selectivity).
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Affiliation(s)
- Chen Zhu
- Department of Chemistry, Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Man-Yi Han
- Department of Chemistry, Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Xiu-Xia Liang
- Department of Chemistry, Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Bin Guan
- Department of Chemistry, Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Pinhua Li
- Department of Chemistry, Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P.R. China
| | - Lei Wang
- Department of Chemistry, Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P.R. China.,Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P.R. China
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8
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Maurya JP, Ramasastry SSV. Divergent Michael/Aldol Cascades Under Semi-Aqueous Conditions: Synthesis of Cyclopenta- and Cycloheptannulated (Hetero)arenes. J Org Chem 2021; 86:525-537. [PMID: 33395742 DOI: 10.1021/acs.joc.0c02195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of 3-acetoxyindanones and (hetero)arene-fused dihydrotropones was achieved via divergent annulation cascades. Under mild aqueous and basic conditions, α-substituted enone-aldehydes and 1,3-carbonyls undergo a Michael/aldol/hemiketalization/retro-aldol cascade for the formation of 3-acetoxyindanones possessing two contiguous stereogenic centers, one of which is an all-carbon quaternary center. On the other hand, the same enone-aldehydes generate new classes of fused-dihydrotropones upon reaction with 2,4-dioxobutanoates under merely the same reaction conditions via a Michael/aldol/lactonization/decarboxylation cascade.
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Affiliation(s)
- Jay Prakash Maurya
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - S S V Ramasastry
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
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9
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Zhang XZ, Li BQ, Qiu ZW, Ma AJ, Peng JB, Du JY, Feng N, Xu XT, Pan HP. Synthesis of Naphthopyrans via Formal (3+3)-Annulation of Propargylic (Aza)-para-Quinone Methides with Naphthols. J Org Chem 2020; 85:13306-13316. [DOI: 10.1021/acs.joc.0c01791] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Bao Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Zong-Wang Qiu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, People’s Republic of China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
| | - Han-Peng Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People’s Republic of China
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10
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Jia ZL, An XT, Deng YH, Wang HB, Gan KJ, Zhang J, Zhao XH, Fan CA. Palladium-Catalyzed Asymmetric (2+3) Annulation of p-Quinone Methides with Trimethylenemethanes: Enantioselective Synthesis of Functionalized Chiral Spirocyclopentyl p-Dienones. Org Lett 2020; 22:4171-4175. [DOI: 10.1021/acs.orglett.0c01252] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi-Long Jia
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Xian-Tao An
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Yu-Hua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Hui-Bin Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Kang-Ji Gan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Jing Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Xian-He Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Chun-An Fan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
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11
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Wu SF, Tu MS, Hang QQ, Zhang S, Ding H, Zhang YC, Shi F. Construction of chiral chroman scaffolds via catalytic asymmetric (4 + 2) cyclizations of para-quinone methide derivatives with 3-vinylindoles. Org Biomol Chem 2020; 18:5388-5399. [DOI: 10.1039/d0ob01049a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The title reaction has been established in the presence of chiral phosphoric acid, affording chiral chroman derivatives bearing an indole moiety in high yields and with moderate to good stereoselectivities.
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Affiliation(s)
- Shu-Fang Wu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Man-Su Tu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Qing-Qing Hang
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Shu Zhang
- Department of Geriatrics
- the First Affiliated Hospital of Nanjing Medical University
- Nanjing
- 210029
- China
| | - Haixia Ding
- Department of Geriatrics
- the First Affiliated Hospital of Nanjing Medical University
- Nanjing
- 210029
- China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
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12
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Xiang M, Li CY, Song XJ, Zou Y, Huang ZC, Li X, Tian F, Wang LX. Organocatalytic and enantioselective [4+2] cyclization between hydroxymaleimides and ortho-hydroxyphenyl para-quinone methide-selective preparation of chiral hemiketals. Chem Commun (Camb) 2020; 56:14825-14828. [DOI: 10.1039/d0cc06777f] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A highly effective and enantioselective organocatalytic [4+2] cyclization has been disclosed, and a series of new chiral hemiketals containing chromane and succinimide frameworks have been firstly prepared in excellent results with 100% atom efficacy.
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Affiliation(s)
- Min Xiang
- Key Laboratory of Asymmetric Synthesis and Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Chen-Yi Li
- Key Laboratory of Asymmetric Synthesis and Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Xiang-Jia Song
- Key Laboratory of Asymmetric Synthesis and Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Ying Zou
- Key Laboratory of Asymmetric Synthesis and Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Zhi-Cheng Huang
- Key Laboratory of Asymmetric Synthesis and Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Xia Li
- Key Laboratory of Asymmetric Synthesis and Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Fang Tian
- Key Laboratory of Asymmetric Synthesis and Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Li-Xin Wang
- Key Laboratory of Asymmetric Synthesis and Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
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