1
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Qin W, Subhani M, Jiang C, Lu H. β-Keto acids in asymmetric metal catalysis and organocatalysis. Org Biomol Chem 2021; 19:10030-10046. [PMID: 34747960 DOI: 10.1039/d1ob01481a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
β-Keto acids, ideal surrogates of inactive ketones, play an important role in organic synthesis. The asymmetric decarboxylative reaction using β-keto acids is the one which is being studied the most. Herein we present a comprehensive review on this research topic, which is generally classified according to different catalytic systems and chiral induction modes. Additionally, some extended utilities of these methodologies for synthesizing bioactive compounds were also summarized. This review will facilitate the synthetic community to understand the role of β-keto acids in asymmetric reactions, providing many new opportunities for further exploration in this field.
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Affiliation(s)
- Wei Qin
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China.
| | - Mahboob Subhani
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China.
| | - Chunhui Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China.
| | - Hongfei Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China.
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2
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Bojanowski J, Albrecht A. Doubly Decarboxylative Synthesis of 4-(Pyridylmethyl)chroman-2-ones and 2-(Pyridylmethyl)chroman-4-ones under Mild Reaction Conditions. Molecules 2021; 26:molecules26154689. [PMID: 34361840 PMCID: PMC8347554 DOI: 10.3390/molecules26154689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/25/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022] Open
Abstract
The doubly decarboxylative Michael-type addition of pyridylacetic acid to chromone-3-carboxylic acids or coumarin-3-carboxylic acids has been developed. This protocol has been realized under Brønsted base catalysis, providing biologically interesting 4-(pyridylmethyl)chroman-2-ones and 2-(pyridylmethyl)chroman-4-ones in good or very good yields. The decarboxylative reaction pathway has been confirmed by mechanistic studies. Moreover, attempts to develop an enantioselective variant of the cascade are also described.
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3
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Frankowski S, Kowalska J, Albrecht A. Pyridylacetic acids and related systems as alkylheteroarene surrogates in asymmetric decarboxylative Michael addition. Chem Commun (Camb) 2021; 57:3387-3390. [PMID: 33683224 DOI: 10.1039/d0cc08182e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this manuscript, a novel method for the preparation of enantiomerically enriched pyridine derivatives has been described. It is based on the utilization of readily available 2-pyridylacetic acids as valuable synthons for the introduction of a pyridine ring in an asymmetric fashion. They have been used as pronucleophiles in asymmetric decarboxylative Michael addition to α,β-unsaturated aldehydes. The synthesis based on iminium activation using a chiral aminocatalyst that controlled the stereochemical outcome of the transformation has been successfully accomplished.
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Affiliation(s)
- Sebastian Frankowski
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland.
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4
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Guan R, Hsu C, Han J. Trifluoroethanol‐mediated Decarboxylative Addition Reactions of β‐Ketoacids with Diverse Electrophiles. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000553] [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)
- Ren‐You Guan
- Department of Chemistry National Chung Hsing University 145 Xingda Rd., South Dist. Taichung City 402 Taiwan R.O.C
| | - Chan‐Wei Hsu
- Department of Chemistry Chung Yuan Christian University 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan R.O.C
| | - Jeng‐Liang Han
- Department of Chemistry National Chung Hsing University 145 Xingda Rd., South Dist. Taichung City 402 Taiwan R.O.C
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5
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Niu JP, Nie J, Li S, Ma JA. Organocatalytic asymmetric synthesis of β,β-diaryl ketones via one-pot tandem dehydration/1,6-addition/decarboxylation transformation of β-keto acids and 4-hydroxybenzyl alcohols. Chem Commun (Camb) 2020; 56:8687-8690. [PMID: 32613956 DOI: 10.1039/d0cc02213f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we describe an organocatalytic protocol for the asymmetric synthesis of β,β-diaryl ketones. Under the catalysis of a chiral phosphoric acid, 4-hydroxybenzyl alcohols underwent dehydration to form para-quinone methides, which reacted with β-keto acids in 1,6-addition reactions. Upon treatment with Et3N in one-pot, decarboxylation proceeded to provide the desired chiral ketones in nearly quantitative yields with high enantioselectivities.
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Affiliation(s)
- Jia-Pan Niu
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P. R. China.
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6
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Park JW, Jang S, Choo MH, Kim DY. Enantioselective Organocatalytic Michael Addition and Ring Closure Cascade Reaction of
o
‐Quinone
Methides with Nitriles. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jin Wha Park
- Department of ChemistrySoonchunhyang University Soonchunhyang‐Ro 22, Asan, Chungnam 31538 South Korea
| | - Subin Jang
- Department of ChemistrySoonchunhyang University Soonchunhyang‐Ro 22, Asan, Chungnam 31538 South Korea
| | - Mi Hyeon Choo
- Department of ChemistrySoonchunhyang University Soonchunhyang‐Ro 22, Asan, Chungnam 31538 South Korea
| | - Dae Young Kim
- Department of ChemistrySoonchunhyang University Soonchunhyang‐Ro 22, Asan, Chungnam 31538 South Korea
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7
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Bojanowski J, Sieroń L, Albrecht A. Enantioselective Synthesis of Chromanones Bearing an α,α-Disubstituted α-Amino Acid Moiety via Decarboxylative Michael Reaction. Molecules 2019; 24:E2565. [PMID: 31311096 PMCID: PMC6681191 DOI: 10.3390/molecules24142565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/08/2019] [Accepted: 07/11/2019] [Indexed: 11/30/2022] Open
Abstract
In this manuscript, a novel, decarboxylative Michael reaction between α-substituted azlactones and chromone-3-carboxylic acids is described. The reaction proceeds in a sequence Michael addition followed by decarboxylative deprotonation, and it results in the formation of chromanones bearing an azlactone structural unit. The possibility of transforming an azlactone moiety into a protected α,α-disubstituted α-amino acid derivative is also demonstrated.
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Affiliation(s)
- Jan Bojanowski
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Lesław Sieroń
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Anna Albrecht
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland.
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8
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Zhou Y, You Y, Wang ZH, Zhang XM, Xu XY, Yuan WC. Organocatalyzed Enantioselective Decarboxylative Mannich Reaction of β-Ketoacids with Pyrazolinone Ketimines for the Construction of Chiral β-Amino Ketone-Pyrazolinone Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900346] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yang Zhou
- National Engineering Research Center of Chiral Drugs; Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; 610041 Chengdu China
- Chengdu Institute of Organic Chemistry; University of Chinese Academy of Sciences; 100049 Beijing China
| | - Yong You
- Institute for Advanced Study; Chengdu Institute of Organic Chemistry; Chengdu University; 610106 Chengdu China
| | - Zhen-Hua Wang
- Institute for Advanced Study; Chengdu Institute of Organic Chemistry; Chengdu University; 610106 Chengdu China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs; Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; 610041 Chengdu China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs; Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; 610041 Chengdu China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs; Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; 610041 Chengdu China
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9
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Bojanowski J, Albrecht A. Carboxylic‐Acid‐Activated Olefins in Decarboxylative Reactions. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900166] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jan Bojanowski
- Institute of Organic Chemistry Faculty of ChemistryLodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Anna Albrecht
- Institute of Organic Chemistry Faculty of ChemistryLodz University of Technology Żeromskiego 116 90-924 Łódź Poland
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10
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Bojanowski J, Albrecht A. The First Vinylogous, Decarboxylative Michael Reaction with 3‐Cyano‐4‐methylcoumarins as Pronucleophiles. ChemistrySelect 2019. [DOI: 10.1002/slct.201900579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jan Bojanowski
- Institute of Organic ChemistryFaculty of ChemistryLodz University of Technology, Żeromskiego 116 90-924 Łódź Poland
| | - Anna Albrecht
- Institute of Organic ChemistryFaculty of ChemistryLodz University of Technology, Żeromskiego 116 90-924 Łódź Poland
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11
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Albrecht A. Utilization of Chromone-3-Carboxylic Acids as Acceptors in the Michael-Type Decarboxylative Addition. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801110] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anna Albrecht
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
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12
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Kim YH, Jang S, Kim DY. Highly Diastereo- and Enantioselective Organocatalyzed Michael/Oxa-Michael Sequence: Asymmetric Synthesis of Pyranonaphthoquinone Derivatives. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11566] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yong Hwan Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 31538 South Korea
| | - Subin Jang
- Department of Chemistry; Soonchunhyang University; Chungnam 31538 South Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 31538 South Korea
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13
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Kim JH, Kim DY. Synthesis of 2,4-Diaryl-4 H-Chromenes via Decarboxylative Alkylation of β-Keto Acids to ortho-Quinone Methides as Reactive Intermediates. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11534] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Joo Hee Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 31538 South Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 31538 South Korea
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14
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Liu YJ, Li JS, Nie J, Ma JA. Organocatalytic Asymmetric Decarboxylative Mannich Reaction of β-Keto Acids with Cyclic α-Ketiminophosphonates: Access to Quaternary α-Aminophosphonates. Org Lett 2018; 20:3643-3646. [PMID: 29847943 DOI: 10.1021/acs.orglett.8b01422] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An organocatalytic asymmetric decarboxylative Mannich reaction of β-keto acids with cyclic α-ketiminophosphonates has been developed. By using saccharide-derived bifunctional amine-thiourea catalysts bearing an axial chiral binaphthyl scaffold, a wide range of quaternary α-amino-γ-oxophosphonates were obtained in up to 93% yield and >99% ee. Furthermore, two interesting α-aminophosphonate derivatives were synthesized from the corresponding decarboxylative Mannich product via simple transformations.
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Affiliation(s)
- Yong-Jie Liu
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering , Tianjin University , Tianjin 300072 , P. R. China
| | - Jin-Shan Li
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering , Tianjin University , Tianjin 300072 , P. R. China
| | - Jing Nie
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering , Tianjin University , Tianjin 300072 , P. R. China
| | - Jun-An Ma
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering , Tianjin University , Tianjin 300072 , P. R. China
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15
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Jeong HJ, Kim DY. Enantioselective Decarboxylative Alkylation of β-Keto Acids to ortho-Quinone Methides as Reactive Intermediates: Asymmetric Synthesis of 2,4-Diaryl-1-benzopyrans. Org Lett 2018; 20:2944-2947. [DOI: 10.1021/acs.orglett.8b00993] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hyun Jung Jeong
- Department of Chemistry, Soonchunhyang University, Asan, Chungnam 31538, Republic of Korea
| | - Dae Young Kim
- Department of Chemistry, Soonchunhyang University, Asan, Chungnam 31538, Republic of Korea
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16
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Lee J, Wang S, Callahan M, Nagorny P. Copper(II)-Catalyzed Tandem Decarboxylative Michael/Aldol Reactions Leading to the Formation of Functionalized Cyclohexenones. Org Lett 2018; 20:2067-2070. [PMID: 29560721 DOI: 10.1021/acs.orglett.8b00607] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This work describes the development of a new single-pot copper(II)-catalyzed decarboxylative Michael reaction between β-keto acids and enones, followed by in situ aldolization, which results in highly functionalized chiral and achiral cyclohexenones. The achiral version of this Robinson annulation features a hitherto unprecedented Michael reaction of β-keto acids with sterically hindered β,β'-substituted enones and provides access to all carbon quaternary stereocenter-containing cyclohexenones (11 examples, 43-83% yield). In addition, an asymmetric chiral bis(oxazoline) copper(II)-catalyzed single-pot Robinson annulation has been devised for preparing chiral cyclohexenones, including some products that contain vicinal stereocenters (5 examples, 65-85% yield, 84-94% ee). This latter protocol has been successfully applied to the enantioselective formation of the oxygenated 10-nor-steroid core from readily available starting materials.
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Affiliation(s)
- Jeonghyo Lee
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Sibin Wang
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Miranda Callahan
- Department of Chemistry , Sewanee: The University of the South , Sewanee , Tennessee 37383 , United States
| | - Pavel Nagorny
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
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17
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Kim YS, Lee MH, Kim DY. Asymmetric Michael Addition of Pyrazolones to β,γ-Unsaturated α-Keto Esters Catalyzed by Binaphthyl-modified Thiourea. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11425] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- You Sun Kim
- Department of Chemistry; Soonchunhyang University; Soonchunhyang-Ro 22, Chungnam 31538 South Korea
| | - Min Hee Lee
- Department of Chemistry; Soonchunhyang University; Soonchunhyang-Ro 22, Chungnam 31538 South Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Soonchunhyang-Ro 22, Chungnam 31538 South Korea
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18
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Han MY, Pan H, Lin J, Li W, Li P, Wang L. A catalyst-controlled switchable reaction of β-keto acids to silyl glyoxylates. Org Biomol Chem 2018; 16:4117-4126. [DOI: 10.1039/c8ob00740c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A catalyst-controlled switchable reaction of β-keto acids to silyl glyoxylates was developed and the decarboxylative-addition products were generated by using a thiourea catalyst.
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Affiliation(s)
- Man-Yi Han
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Hong Pan
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Jing Lin
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Wei Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
- State Key Laboratory of Organometallic Chemistry
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19
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Jeong HJ, Kim YH, Kim DY. Thiourea-catalyzed Oxidative Coupling Reaction of N
-Phenyl Tetrahydroisoquinoline with β-Keto Acids. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11354] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hyun Jung Jeong
- Department of Chemistry; Soonchunhyang University; Asan 31538 Korea
| | - Yong Hwan Kim
- Department of Chemistry; Soonchunhyang University; Asan 31538 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Asan 31538 Korea
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20
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Tkachuk VM, Mel’nikov SV, Sukach VA, Vovk MV. The addition of β-ketoacids to 4-(trifluoromethyl)pyrimidin- 2(1Н)-ones with decarboxylation: an effective method for the synthesis of 4-(2-oxoalkyl)-6-(trifluoromethyl)-3,4-dihydropyrimidin-2-ones. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2182-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Kim YH, Gil MG, Kim DY. Diethyl Azodicarboxylate-promoted Oxidative Coupling Reaction of N
-Phenyl Tetrahydroisoquinoline with β-Keto Acids. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11307] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yong Hwan Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 31538 Korea
| | - Min Gyun Gil
- Department of Chemistry; Soonchunhyang University; Chungnam 31538 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 31538 Korea
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22
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Kim YH, Yoon JH, Lee MY, Kim DY. Enantioselective Conjugate Addition of Pyrazolones to Nitroalkenes Catalyzed by Binaphthyl-modified Squaramide Organocatalyst. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11241] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yong Hwan Kim
- Department of Chemistry; Soonchunhyang University; Asan Chungnam 31538 Korea
| | - Ji Hee Yoon
- Department of Chemistry; Soonchunhyang University; Asan Chungnam 31538 Korea
| | - Min Young Lee
- Department of Chemistry; Soonchunhyang University; Asan Chungnam 31538 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Asan Chungnam 31538 Korea
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23
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Albrecht A, Bojanowski J. Decarboxylative Aminocatalytic Cascade for the Synthesis of Dihydroxanthones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700400] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Anna Albrecht
- Institute of Organic Chemistry, Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
| | - Jan Bojanowski
- Institute of Organic Chemistry, Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
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24
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Xu X, Chen H, He J, Xu H. Copper-Catalysed Decarboxylative Trifluoromethylation of β
-Ketoacids. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700271] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaolan Xu
- School of Chemistry and Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
- School of Medical Science; Anhui Medical University; Hefei Anhui 230009 China
| | - Huanhuan Chen
- School of Chemistry and Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
| | - Jianbo He
- School of Chemistry and Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
| | - Huajian Xu
- School of Chemistry and Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 China
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25
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Kim YJ, Kim Y, Kim DY. Synthesis of Ring-fused Tetrahydroquinoline Derivatives via [1,5]-Hydride Transfer/Cyclization Sequences. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11126] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yeon Joo Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
| | - Yubin Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
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26
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Wei Y, Zhang HX, Zeng JL, Nie J, Ma JA. Organocatalytic Asymmetric Decarboxylative Amination of β-Keto Acids: Access to Optically Active α-Amino Ketones and 1,2-Amino Alcohols. Org Lett 2017; 19:2162-2165. [PMID: 28406311 DOI: 10.1021/acs.orglett.7b00797] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An organocatalytic asymmetric decarboxylative amination reaction of β-keto acids is described. Under mild reaction conditions, a series of chiral α-amino ketones were obtained in good to high yields (up to 99%) and enantioselectivities (up to 95% ee). A chiral 1,2-amino alcohol was synthesized from the corresponding decarboxylative amination product in several steps without loss of enantioselectivity.
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Affiliation(s)
- Yi Wei
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, P. R. China
| | - Heng-Xia Zhang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, P. R. China
| | - Jun-Liang Zeng
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, P. R. China
| | - Jing Nie
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, P. R. China
| | - Jun-An Ma
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, P. R. China
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27
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Kwon SJ, Gil MG, Kim DY. Visible light mediated photocatalytic oxidative coupling reaction of N -phenyl tetrahydroisoquinoline with β-keto acids. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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28
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Jeong HI, Youn TH, Kim DY. Thiourea-catalyzed 1,5-Hydride Transfer and Cyclization Sequences: Synthesis of Tetrahydroquinoline Derivatives. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11114] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hye Im Jeong
- Department of Chemistry; Soonchunhyang University; Asan 31538 Korea
| | - Tae Ho Youn
- Department of Chemistry; Soonchunhyang University; Asan 31538 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Asan 31538 Korea
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29
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Suh CW, Kwon SJ, Kim DY. Synthesis of Ring-Fused 1-Benzazepines via [1,5]-Hydride Shift/7-Endo Cyclization Sequences. Org Lett 2017; 19:1334-1337. [DOI: 10.1021/acs.orglett.7b00184] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chang Won Suh
- Department of Chemistry, Soonchunhyang University, Asan, Chungnam 31538, Korea
| | - Su Jin Kwon
- Department of Chemistry, Soonchunhyang University, Asan, Chungnam 31538, Korea
| | - Dae Young Kim
- Department of Chemistry, Soonchunhyang University, Asan, Chungnam 31538, Korea
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30
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Vamisetti GB, Chowdhury R, Ghosh SK. Organocatalytic decarboxylative aldol reaction of β-ketoacids with α-ketophosphonates en route to the enantioselective synthesis of tertiary α-hydroxyphosphonates. Org Biomol Chem 2017; 15:3869-3873. [DOI: 10.1039/c7ob00796e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
γ-Aroyl tertiary α-hydroxyphosphonates with a chiral quaternary centre were synthesized via a facile organocatalyzed decarboxylative aldol reaction between β-ketoacids and α-ketophosphonates.
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Affiliation(s)
- Ganga B. Vamisetti
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
- Homi Bhabha National Institute
| | | | - Sunil K. Ghosh
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
- Homi Bhabha National Institute
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31
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Koppolu SR, Balamurugan R. In situ formed acetals facilitated direct Michael addition of unactivated ketones. NEW J CHEM 2017. [DOI: 10.1039/c6nj02954j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A facile Michael addition of unactivated ketones under Brønsted acid conditions for the synthesis of 1,5-diketones.
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32
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Asymmetric Michael addition of malonates to unsaturated ketones catalyzed by rare earth metal complexes bearing phenoxy functionalized chiral diphenylprolinolate ligands. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.07.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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Wei Y, Guo R, Dang Y, Nie J, Ma JA. Organocatalytic Enantioselective Decarboxylative Michael Addition of β-Keto Acids to Dicyanoolefins and Disulfonylolefins. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600485] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yi Wei
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences; Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
| | - Ran Guo
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences; Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
| | - Yanfeng Dang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences; Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
| | - Jing Nie
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences; Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
| | - Jun-An Ma
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences; Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin 300072 People's Republic of China
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34
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Jang HS, Kim Y, Kim DY. Enantioselective addition of diphenyl phosphonate to ketimines derived from isatins catalyzed by binaphthyl-modified organocatalysts. Beilstein J Org Chem 2016; 12:1551-6. [PMID: 27559405 PMCID: PMC4979900 DOI: 10.3762/bjoc.12.149] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 07/06/2016] [Indexed: 01/14/2023] Open
Abstract
Chiral binaphthyl-modified squaramide-catalyzed enantioselective addition of diphenyl phosphonate to ketimines derived from isatins has been achieved. This method affords practical and efficient access to chiral 3-amino-3-phosphonyl-substituted oxindole derivatives in high yields with excellent enantioselectivities (up to 99% ee).
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Affiliation(s)
- Hee Seung Jang
- Department of Chemistry, Soonchunhyang University, Soonchunhyang-Ro 22, Asan, Chungnam 31538, Korea
| | - Yubin Kim
- Department of Chemistry, Soonchunhyang University, Soonchunhyang-Ro 22, Asan, Chungnam 31538, Korea
| | - Dae Young Kim
- Department of Chemistry, Soonchunhyang University, Soonchunhyang-Ro 22, Asan, Chungnam 31538, Korea
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35
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Nakamura S, Toda A, Sano M, Hatanaka T, Funahashi Y. Organocatalytic Enantioselective Conjugate Addition of Malonic Acid Half Thioesters to Coumarin-3-carboxylic Acids UsingN-HeteroarenesulfonylCinchonaAlkaloid Amides. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600040] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Lai BN, Qiu JF, Zhang HX, Nie J, Ma JA. Stereoselective Synthesis of Fused Aziridines via One-Pot Sequential Decarboxylative Mannich Reaction and Oxidative C–H Amination of Cyclic Imines with β-Ketoacids. Org Lett 2016; 18:520-3. [DOI: 10.1021/acs.orglett.5b03551] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bo-Nan Lai
- Department
of Chemistry, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jian-Feng Qiu
- Department
of Chemistry, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Heng-Xia Zhang
- Department
of Chemistry, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jing Nie
- Department
of Chemistry, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jun-An Ma
- Department
of Chemistry, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
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37
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Jeong HJ, Kim DY. Organocatalytic Asymmetric Michael Addition of α-Fluoro β-Ketophosphonate to Nitroalkenes. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10580] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hyun Jung Jeong
- Department of Chemistry; Soonchunhyang University; Asan 336-745 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Asan 336-745 Korea
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38
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Catalytic asymmetric conjugate addition of α-fluoro β-ketophosphonates to nitroalkenes in the presence of nickel complexes. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.04.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Kang SH, Kim DY. Diastereo- and Enantioselective Conjugate Addition of α-Substituted Cyanoacetates to Maleimides Catalyzed by Binaphthyl-based Thiourea. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Seong Hye Kang
- Department of Chemistry; Soonchunhyang University; Asan 336-745 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Asan 336-745 Korea
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40
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Kwon SJ, Suh CW, Kim SM, Kim DY. Catalytic Asymmetric Michael Addition of α-Fluoro β-Ketoester to Nitroalkenes in the Presence of Nickel Complexes. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10378] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Su Jin Kwon
- Department of Chemistry; Soonchunhyang University; Asan 336-745 Korea
| | - Chang Won Suh
- Department of Chemistry; Soonchunhyang University; Asan 336-745 Korea
| | - Sun Mi Kim
- Department of Chemistry; Soonchunhyang University; Asan 336-745 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Asan 336-745 Korea
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41
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Jeong HJ, Kwon SJ, Kim DY. Diastereo- and Enantioselective Conjugate Addition of 3-Chlorooxindoles to Nitroalkenes Catalyzed by Binaphthyl-modified Organocatalyst. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10264] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Hyun Jung Jeong
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
| | - Su Jin Kwon
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
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42
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Kim YS, Kwon SJ, Kim DY. Organocatalytic Enantioselective Conjugate Addition of 3-Fluorooxindoles to Vinyl Sulfone. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10263] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yi Seul Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
| | - Su Jin Kwon
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
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43
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Wei AJ, Nie J, Zheng Y, Ma JA. Ni-Catalyzed Highly Chemo-, Regio-, and Enantioselective Decarboxylative Aldol Reaction of β,γ-Unsaturated α-Ketoesters with β-Ketoacids. J Org Chem 2015; 80:3766-76. [DOI: 10.1021/jo502741z] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ai-Jia Wei
- Department of Chemistry,
Key Laboratory of Systems Bioengineering (The Ministry of Education), Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jing Nie
- Department of Chemistry,
Key Laboratory of Systems Bioengineering (The Ministry of Education), Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Yan Zheng
- Department of Chemistry,
Key Laboratory of Systems Bioengineering (The Ministry of Education), Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jun-An Ma
- Department of Chemistry,
Key Laboratory of Systems Bioengineering (The Ministry of Education), Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
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44
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Tang XD, Li S, Guo R, Nie J, Ma JA. Chiral Phosphoric Acid Catalyzed Enantioselective Decarboxylative Alkylation of β-Keto Acids with 3-Hydroxy-3-indolyloxindoles. Org Lett 2015; 17:1389-92. [DOI: 10.1021/acs.orglett.5b00159] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiao-Dong Tang
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Shen Li
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Ran Guo
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jing Nie
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jun-An Ma
- Department
of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
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45
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Suh CW, Jeong HJ, Kim DY. Synthesis of Tetrahydroquinoline Derivatives via Oxidation and 1,5-Hydride Transfer/Cyclization Cascade. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Chang Won Suh
- Department of Chemistry; Soonchunhyang University; Asan Chungnam 336-745 Korea
| | - Hyun Jung Jeong
- Department of Chemistry; Soonchunhyang University; Asan Chungnam 336-745 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Asan Chungnam 336-745 Korea
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46
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Lee HJ, Lee DE, Kim DY. Thiourea-catalyzed Intramolecular Allylic Amination: Synthesis of Dihydroquinoline Derivatives. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hyun Joo Lee
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
| | - Da Eun Lee
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
| | - Dae Young Kim
- Department of Chemistry; Soonchunhyang University; Chungnam 336-745 Korea
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47
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Xiao X, Mei H, Chen Q, Zhao X, Lin L, Liu X, Feng X. Direct asymmetric vinylogous Michael addition of 3-alkylidene oxindoles to chalcones catalyzed by a chiral N,N′-dioxide ytterbium(iii) complex. Chem Commun (Camb) 2015; 51:580-3. [DOI: 10.1039/c4cc07204a] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chiral ytterbium(iii)–N,N′-dioxide complex was applied in the catalytic direct asymmetric vinylogous Michael addition of 3-alkylidene oxindoles to chalcones, giving the corresponding γ-addition products with high yields, enantioselectivities andZ/Eselectivities.
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Affiliation(s)
- Xiao Xiao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Hongjiang Mei
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Quangang Chen
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Xiaohu Zhao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
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48
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Quintard A, Rodriguez J. Synergistic Cu–amine catalysis for the enantioselective synthesis of chiral cyclohexenones. Chem Commun (Camb) 2015; 51:9523-6. [DOI: 10.1039/c5cc02987b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented utilization of 1,3-acetonedicarboxylic acid as a 1,3-bis-pro-nucleophile and a reactive acetone surrogate in enantioselective catalysis has been reported.
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Affiliation(s)
- A. Quintard
- Aix Marseille Université
- Centrale Marseille
- CNRS
- Marseille
- France
| | - J. Rodriguez
- Aix Marseille Université
- Centrale Marseille
- CNRS
- Marseille
- France
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49
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Abstract
The Pictet-Spengler (PS) reaction constructs plant alkaloids such as morphine and camptothecin, but it has not yet been noticed in the fungal kingdom. Here, a silent fungal Pictet-Spenglerase (FPS) gene of Chaetomium globosum 1C51 residing in Epinephelus drummondhayi guts is described and ascertained to be activable by 1-methyl-L-tryptophan (1-MT). The activated FPS expression enables the PS reaction between 1-MT and flavipin (fungal aldehyde) to form "unnatural" natural products with unprecedented skeletons, of which chaetoglines B and F are potently antibacterial with the latter inhibiting acetylcholinesterase. A gene-implied enzyme inhibition (GIEI) strategy has been introduced to address the key steps for PS product diversifications. In aggregation, the work designs and validates an innovative approach that can activate the PS reaction-based fungal biosynthetic machinery to produce unpredictable compounds of unusual and novel structure valuable for new biology and biomedicine.
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50
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Zhang HX, Nie J, Cai H, Ma JA. Cyclic Aldimines as Superior Electrophiles for Cu-Catalyzed Decarboxylative Mannich Reaction of β-Ketoacids with a Broad Scope and High Enantioselectivity. Org Lett 2014; 16:2542-5. [DOI: 10.1021/ol500929d] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Heng-Xia Zhang
- Department of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jing Nie
- Department of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Hua Cai
- Department of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
| | - Jun-An Ma
- Department of Chemistry,
Key Laboratory of Systems Bioengineering (the Ministry of Education), Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. of China
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