1
|
Affiliation(s)
- Nilanjana Majumdar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| |
Collapse
|
2
|
Tang Y, Liu K, Wu Y, Zhou S, Cheng T, Liu G. Single‐Operation Decarboxylative Mannich Reaction/Asymmetric Transfer Hydrogenation Cascade Process Directly Accesses 1,3‐Distereocentered β‐Sulfonamido Alcohols. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yong Tang
- Shanghai Normal University - Xuhui Campus CHINA
| | - Kaihong Liu
- Shanghai Normal University - Xuhui Campus CHINA
| | - Ye Wu
- Shanghai Normal University - Xuhui Campus CHINA
| | - Siyu Zhou
- Shanghai Normal University - Xuhui Campus CHINA
| | | | - Guohua Liu
- Shanghai Normal University - Xuhui Campus CHINA
| |
Collapse
|
3
|
Xavier T, Condon S, Pichon C, Le Gall E, Presset M. Substituted Malonic Acid Half Oxyesters (SMAHOs): Greener Nucleophiles for Organic Synthesis. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101392] [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)
- Tania Xavier
- ICMPE: Institut de Chimie et des Materiaux Paris-Est C3M FRANCE
| | - Sylvie Condon
- ICMPE: Institut de Chimie et des Materiaux Paris-Est C3M FRANCE
| | | | - Erwan Le Gall
- ICMPE: Institut de Chimie et des Materiaux Paris-Est C3M FRANCE
| | - Marc Presset
- Institut de Chimie et des Materiaux Paris-Est C3M 2-8 Rue Henri Dunant94320 94320 Thiais FRANCE
| |
Collapse
|
4
|
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.
Collapse
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.
| |
Collapse
|
5
|
Xiao P, Pannecoucke X, Bouillon JP, Couve-Bonnaire S. Wonderful fusion of organofluorine chemistry and decarboxylation strategy. Chem Soc Rev 2021; 50:6094-6151. [PMID: 34027960 DOI: 10.1039/d1cs00216c] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Decarboxylation strategy has been emerging as a powerful tool for the synthesis of fluorine-containing organic compounds that play important roles in various fields such as pharmaceuticals, agrochemicals, and materials science. Considerable progress in decarboxylation has been made over the past decade towards the construction of diverse valuable fluorinated fine chemicals for which the fluorinated part can be brought in two ways. The first way is described as the reaction of non-fluorinated carboxylic acids (and their derivatives) with fluorinating reagents, as well as fluorine-containing building blocks. The second way is dedicated to the exploration and the use of fluorine-containing carboxylic acids (and their derivatives) in decarboxylative transformations. This review aims to provide a comprehensive summary of the development and applications of decarboxylative radical, nucleophilic and cross-coupling strategies in organofluorine chemistry.
Collapse
Affiliation(s)
- Pan Xiao
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| | - Xavier Pannecoucke
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| | | | | |
Collapse
|
6
|
He L, Ahmed EAMA, Liu H, Hu X, Xiao HP, Li J, Jiang J. Asymmetric Construction of α-Substituted β-Hydroxy Lactones via Ni Catalyzed Decarboxylative Addition Reaction. J Org Chem 2021; 86:4825-4834. [PMID: 33635652 DOI: 10.1021/acs.joc.0c02854] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We described a Ni-bidentate oxazoline catalyzed highly enantio- and diastereoselective decarboxylative aldol reaction of 2-oxotetrahydrofuran-3-carboxylic acid/2-oxochromane-3-carboxylic acid derivatives with different kinds of carbonyls. Under optimal reaction conditions, α-substituted β-hydroxy butyrolactones and dihydrocoumarins with an all-carbon quaternary stereocenter have been generated with high levels of functional-group compatibility. Furthermore, proficient transformations of products were also described, in which an aliphatic tertiary alcohol and a multi-substituted 1,4-diol were smoothly constructed through hydrogenation and ring-opening reaction, respectively.
Collapse
Affiliation(s)
- Lingchen He
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | | | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xingen Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hong-Ping Xiao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Juan Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jun Jiang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| |
Collapse
|
7
|
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
| |
Collapse
|
8
|
Thomson CJ, Barber DM, Dixon DJ. Catalytic Enantioselective Direct Aldol Addition of Aryl Ketones to α‐Fluorinated Ketones. Angew Chem Int Ed Engl 2020; 59:5359-5364. [DOI: 10.1002/anie.201916129] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Indexed: 01/17/2023]
Affiliation(s)
- Connor J. Thomson
- Department of ChemistryChemistry Research LaboratoryUniversity of Oxford Mansfield Road Oxford OX1 3TA UK
| | - David M. Barber
- Research & DevelopmentWeed Control ChemistryBayer AG, Crop Science Division Industriepark Höchst 65926 Frankfurt am Main Germany
| | - Darren J. Dixon
- Department of ChemistryChemistry Research LaboratoryUniversity of Oxford Mansfield Road Oxford OX1 3TA UK
| |
Collapse
|
9
|
Thomson CJ, Barber DM, Dixon DJ. Catalytic Enantioselective Direct Aldol Addition of Aryl Ketones to α‐Fluorinated Ketones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916129] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Connor J. Thomson
- Department of ChemistryChemistry Research LaboratoryUniversity of Oxford Mansfield Road Oxford OX1 3TA UK
| | - David M. Barber
- Research & DevelopmentWeed Control ChemistryBayer AG, Crop Science Division Industriepark Höchst 65926 Frankfurt am Main Germany
| | - Darren J. Dixon
- Department of ChemistryChemistry Research LaboratoryUniversity of Oxford Mansfield Road Oxford OX1 3TA UK
| |
Collapse
|
10
|
Wang N, Liu H, Gao H, Zhou J, Zheng L, Li J, Xiao HP, Li X, Jiang J. Ni(II)-Catalyzed Enantioselective Synthesis of β-Hydroxy Esters with Carboxylate Assistance. Org Lett 2019; 21:6684-6689. [PMID: 31393737 DOI: 10.1021/acs.orglett.9b02297] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Ni-oxazoline complex-catalyzed asymmetric decarboxylative aldol reaction between malonic acid half-oxyesters and various carbonyls with carboxylate assistance was developed, affording structurally diverse β-hydroxy esters with good yields and enantioselectivities under mild conditions. Importantly, the broad substrate scope of this methodology enabled rapid accesses to several natural products and their analogues as exemplified by phenylpropanoid, phaitanthrin B, and phthalide.
Collapse
Affiliation(s)
- Na Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hang Gao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jiafeng Zhou
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Longzhangdi Zheng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Juan Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hong-Ping Xiao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xinhua Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jun Jiang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| |
Collapse
|
11
|
Khopade TM, Warghude PK, Sonawane AD, Bhat RG. Multicomponent synthesis of pyroglutamic acid derivatives via Knoevenagel-Michael-hydrolysis-lactamization-decarboxylation (KMHL-D) sequence. Org Biomol Chem 2019; 17:561-566. [PMID: 30574984 DOI: 10.1039/c8ob02473a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel and practical method for the synthesis of 3-substituted pyroglutamic acid derivatives is described. One pot multicomponent reaction of Meldrum's acid, aldehyde and Schiff's base followed an unprecedented chemoselective Knoevenagel-Michael-hydrolysis-lactamization domino sequence to afford 4-carboxy 3-substituted pyroglutamic acid derivatives under mild conditions. A carboxy intermediate formed appears to accelerate its own formation. The generality of the synthesis is exemplified by the use of a wide variety of aldehydes including enolizable aliphatic aldehydes, while substrates are stable under reaction conditions.
Collapse
Affiliation(s)
- Tushar M Khopade
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr Homi Bhabha Road, Pashan, 411008, Pune, Maharashtra, India.
| | | | | | | |
Collapse
|
12
|
Pluta R, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of α‐Alkoxyamides to α‐Fluorinated Ketones. Angew Chem Int Ed Engl 2019; 58:2459-2463. [PMID: 30652398 DOI: 10.1002/anie.201814607] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Roman Pluta
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| |
Collapse
|
13
|
Pluta R, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of α‐Alkoxyamides to α‐Fluorinated Ketones. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814607] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Roman Pluta
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| |
Collapse
|
14
|
Zhang H, Lu Z. Nickel/Copper Dual Catalysis for Sequential Nazarov Cyclization/Decarboxylative Aldol Reaction. Org Lett 2018; 20:5709-5713. [PMID: 30160123 DOI: 10.1021/acs.orglett.8b02426] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A nickel/copper cocatalyzed sequential Nazarov cyclization/decarboxylative aldol reaction is reported. Various β-hydroxycyclopentenones containing three contiguous stereocenters were prepared in good yields with high diastereoselectivities. A gram-scale reaction and further derivatizations were easily achieved to highlight the synthetic utility of this transformation. Preliminary attempts for sequential asymmetric transformation were also conducted.
Collapse
Affiliation(s)
- Heyi Zhang
- Department of Chemistry , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
| | - Zhan Lu
- Department of Chemistry , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
| |
Collapse
|
15
|
Chaumont P, Baudoux J, Maddaluno J, Rouden J, Harrison-Marchand A. Access to Anti or Syn 2-Amino-1,3-diol Scaffolds from a Common Decarboxylative Aldol Adduct. J Org Chem 2018; 83:8081-8091. [PMID: 29953234 DOI: 10.1021/acs.joc.8b00901] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A straightforward synthetic pathway allowing the access to anti or syn 2-amino-1,3-diol scaffolds is presented. The strategy relies on a diastereoselective organocatalyzed decarboxylative aldol reaction of a N-Boc-hemimalonate that is easily formed from commercial N-Boc-diethyl malonate. Although this method has been optimized previously with the N-Bz-hemimalonate analogue, this key step was reinvestigated with the N-Boc derivative to improve the required reaction time, the yield, and the diastereoselectivity. The new conditions enhance this transformation, and quantitative yields and anti/syn ratios up to 96:4 can be obtained. The anti aldol product was easily isolated in pure form and then taken forward as the key precursor in the preparation of both a set of ten N-/O-alkylated anti 2-amino-1,3-diol derivatives and the syn congeners.
Collapse
Affiliation(s)
- Pauline Chaumont
- Laboratoire COBRA (UMR 6014 & FR 3038) , Normandie Université, UNIROUEN, INSA Rouen, CNRS , 76000 Rouen , France
| | - Jérome Baudoux
- Laboratoire LCMT (UMR 6507 & FR 3038) , Normandie Université, ENSICAEN, UNICAEN, CNRS , 14000 Caen , France
| | - Jacques Maddaluno
- Laboratoire COBRA (UMR 6014 & FR 3038) , Normandie Université, UNIROUEN, INSA Rouen, CNRS , 76000 Rouen , France
| | - Jacques Rouden
- Laboratoire LCMT (UMR 6507 & FR 3038) , Normandie Université, ENSICAEN, UNICAEN, CNRS , 14000 Caen , France
| | - Anne Harrison-Marchand
- Laboratoire COBRA (UMR 6014 & FR 3038) , Normandie Université, UNIROUEN, INSA Rouen, CNRS , 76000 Rouen , France
| |
Collapse
|
16
|
Zheng ZJ, Yu TY, Xu PF, Wei H. (Diacetoxyiodo)benzene-mediated Selective Synthesis of α-Azido Ketones or Acyl Azides from β-Keto Acids. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800319] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhao-Jing Zheng
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 China
| | - Tian-Yang Yu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education; College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education; College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
| |
Collapse
|
17
|
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.
Collapse
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
| |
Collapse
|
18
|
Ishizawa K, Nagai H, Shimizu Y, Kanai M. Boron-Catalyzed Carboxylic Acid-Selective Aldol Reaction with Trifluoromethyl Ketones. Chem Pharm Bull (Tokyo) 2018; 66:231-234. [DOI: 10.1248/cpb.c17-00545] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kouhei Ishizawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
- Sohyaku Innovative Research Division, Mitsubishi Tanabe Pharma Corporation
| | - Hideoki Nagai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Yohei Shimizu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| |
Collapse
|
19
|
Melnykov SV, Pataman AS, Dmytriv YV, Shishkina SV, Vovk MV, Sukach VA. Regioselective decarboxylative addition of malonic acid and its mono(thio)esters to 4-trifluoromethylpyrimidin-2(1 H)-ones. Beilstein J Org Chem 2017; 13:2617-2625. [PMID: 29259672 PMCID: PMC5727768 DOI: 10.3762/bjoc.13.259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/20/2017] [Indexed: 01/07/2023] Open
Abstract
Background: Due to the high reactivity towards various C-nucleophiles, trifluoromethylketimines are known to be useful reagents for the synthesis of α-trifluoromethylated amine derivatives. However, decarboxylative reactions with malonic acid and its mono(thio)esters have been poorly investigated so far despite the potential to become a convenient route to β-trifluoromethyl-β-amino acid derivatives and to their partially saturated heterocyclic analogues. Results: In this paper we show that 4-trifluoromethylpyrimidin-2(1H)-ones, unique heterocyclic ketimines, react with malonic acid under organic base catalysis to regioselectively provide either Michael- or Mannich-type decarboxylative addition products depending on solvent polarity. Malonic mono(thio)esters give exclusively Michael-type products. The two regioisomeric products can be converted into saturated (2-oxohexahydropyrimidin-4-yl)acetic acid derivatives by mild hydrogenation of the endocyclic C=C double bond in the presence of Pd/C as catalyst. The cis-stereoisomers selectively formed upon reduction of the Michael-type products were structurally determined by X-ray diffraction. As a result of this study, a number of novel acetic acid derivatives containing trifluoromethylated, partially or fully saturated 2-oxopyrimidine cores were prepared and characterized as promising building blocks. Conclusions: Regio- and stereoselective protocols have been developed for the synthesis of novel isomeric 4(6)-trifluoromethylated 1,2,3,4-tetrahydro- and perhydro-(2-oxopyrimidin-4-yl)acetic acid derivatives.
Collapse
Affiliation(s)
- Sergii V Melnykov
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., Kyiv 02660, Ukraine
| | | | - Yurii V Dmytriv
- Enamine LTD, 78 Chervonotkats'ka str., Kyiv 02094, Ukraine.,National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", 37 Peremohy ave., Kyiv 03056, Ukraine
| | - Svitlana V Shishkina
- STC ''Institute for Single Crystals'', National Academy of Sciences of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine.,Department of Inorganic Chemisrtry, V.M. Karasin Kharkiv National University, 4 Svobody sq, Kharkiv 61122, Ukraine
| | - Mykhailo V Vovk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., Kyiv 02660, Ukraine
| | - Volodymyr A Sukach
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., Kyiv 02660, Ukraine
| |
Collapse
|
20
|
Gupta E, Kant R, Mohanan K. Decarbethoxylative Arylation Employing Arynes: A Metal-Free Pathway to Arylfluoroamides. Org Lett 2017; 19:6016-6019. [PMID: 29034681 DOI: 10.1021/acs.orglett.7b03072] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An efficient, metal-free decarbethoxylative arylation protocol for the synthesis of α-aryl-α-fluoroamides from fluoromalonamates, under ambient reaction conditions using aryne as an electrophilic arylating agent, is reported. This decarbethoxylative arylation proceeds under mild conditions and provides a practical and effective entry to a wide range of α-aryl-α-fluoroacetamides. Interestingly, the use of the tert-butyl ester of fluoromalonamate prevented the otherwise rapid decarboxylation step, affording the arylated fluoromalonamate in moderate yield.
Collapse
Affiliation(s)
| | | | - Kishor Mohanan
- Academy of Scientific and Innovative Research , New Delhi 110001, India
| |
Collapse
|
21
|
Huang DK, Lei ZL, Zhu YJ, Liu ZJ, Hu XJ, Mao HF. An expedient synthesis of α,α-difluoro-β-hydroxy ketones via decarboxylative aldol reaction of α,α-difluoro-β-keto acids with aldehydes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
22
|
Li SW, Gong J, Kang Q. Chiral-at-Metal Rh(III) Complex-Catalyzed Decarboxylative Michael Addition of β-Keto Acids with α,β-Unsaturated 2-Acyl Imidazoles or Pyridine. Org Lett 2017; 19:1350-1353. [PMID: 28245128 DOI: 10.1021/acs.orglett.7b00220] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shi-Wu Li
- Key Laboratory of Coal to
Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002, China
| | - Jun Gong
- Key Laboratory of Coal to
Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002, China
| | - Qiang Kang
- Key Laboratory of Coal to
Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002, China
| |
Collapse
|
23
|
Bew SP, Stephenson GR, Rouden J, Godemert J, Seylani H, Martinez-Lozano LA. Gaining Insight Into Reactivity Differences Between Malonic Acid Half Thioesters (MAHT) and Malonic Acid Half Oxyesters (MAHO). Chemistry 2017; 23:4557-4569. [DOI: 10.1002/chem.201605148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Sean P. Bew
- School of Chemistry; Norwich Research Park; University of East Anglia; NR4 7TJ UK
| | | | - Jacques Rouden
- Laboratoire de Chimie Moleculaire et thio-organique (LCMT); UMR CNRS 6507, Ensicaen; 6 Boulevard du Marechal Juin 14050 Caen France
| | - Jeremy Godemert
- School of Chemistry; Norwich Research Park; University of East Anglia; NR4 7TJ UK
| | - Haseena Seylani
- School of Chemistry; Norwich Research Park; University of East Anglia; NR4 7TJ UK
| | | |
Collapse
|
24
|
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
| |
Collapse
|
25
|
Singjunla Y, Colombano S, Baudoux J, Rouden J. Stereoselective synthesis of dehydroamino acids using malonic acid half oxyester and aromatic aldehydes. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
26
|
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
| |
Collapse
|
27
|
Liu P, Zhang G, Sun P. Transition metal-free decarboxylative alkylation reactions. Org Biomol Chem 2016; 14:10763-10777. [DOI: 10.1039/c6ob02101h] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
This review summarizes recent advances in the transition metal-free decarboxylative alkylation of carboxylic acids and their derivatives.
Collapse
Affiliation(s)
- Ping Liu
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
| | - Guanghui Zhang
- School of Chemical Engineering
- Purdue University
- West Lafayette
- USA
| | - Peipei Sun
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
| |
Collapse
|
28
|
Li F, Wang J, Xu M, Zhao X, Zhou X, Zhao WX, Liu L. Catalytic stereoselective cascade reactions of quinols with trifluoromethyl ketones: direct access to CF3-containing 1,3-dioxolanes. Org Biomol Chem 2016; 14:3981-8. [DOI: 10.1039/c6ob00281a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A general and efficient synthesis of CF3-containing 1,3-dioxolanes using Et3N-catalyzed ketalization/oxa-Michael cascade of quinols with trifluoromethyl ketones is described. The desired products were obtained in 68%–95% yields with acceptable diastereoselectivities.
Collapse
Affiliation(s)
- Feng Li
- College of Chemistry and Chemical Engineering
- Shangqiu Normal University
- Shangqiu
- China
| | - Jingjing Wang
- College of Chemistry and Chemical Engineering
- Shangqiu Normal University
- Shangqiu
- China
| | - Mengmeng Xu
- College of Chemistry and Chemical Engineering
- Shangqiu Normal University
- Shangqiu
- China
| | - Xiaobo Zhao
- College of Chemistry and Chemical Engineering
- Shangqiu Normal University
- Shangqiu
- China
| | - Xiaohong Zhou
- College of Chemistry and Chemical Engineering
- Shangqiu Normal University
- Shangqiu
- China
| | - Wen-Xian Zhao
- College of Chemistry and Chemical Engineering
- Shangqiu Normal University
- Shangqiu
- China
| | - Lantao Liu
- College of Chemistry and Chemical Engineering
- Shangqiu Normal University
- Shangqiu
- China
| |
Collapse
|
29
|
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
| |
Collapse
|
30
|
Ren Q, Gao T, Li W, Wan L, Hu Y, Peng Y, Sun S, Hu L, Wu M, Guo H, Wang J. A highly enantioselective Michael reaction between α,β-unsaturated ketones and malonic acid half-thioesters. NEW J CHEM 2015. [DOI: 10.1039/c5nj00719d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An organocatalytic Michael reaction of enones and malonic acid half thioesters catalyzed by a chiral amine has been developed.
Collapse
Affiliation(s)
- Qiao Ren
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Tao Gao
- Hubei Collaborative Innovation Centre for Non-power Nuclear Technology
- College of Chemistry and Biological Sciences
- Hubei University of Science and Technology
- People's Republic of China
| | - Wenjun Li
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Li Wan
- Hubei Collaborative Innovation Centre for Non-power Nuclear Technology
- College of Chemistry and Biological Sciences
- Hubei University of Science and Technology
- People's Republic of China
| | - Yimin Hu
- Hubei Collaborative Innovation Centre for Non-power Nuclear Technology
- College of Chemistry and Biological Sciences
- Hubei University of Science and Technology
- People's Republic of China
| | - Yanhong Peng
- Hubei Collaborative Innovation Centre for Non-power Nuclear Technology
- College of Chemistry and Biological Sciences
- Hubei University of Science and Technology
- People's Republic of China
| | - Shaofa Sun
- Hubei Collaborative Innovation Centre for Non-power Nuclear Technology
- College of Chemistry and Biological Sciences
- Hubei University of Science and Technology
- People's Republic of China
| | - Liqiang Hu
- Hubei Collaborative Innovation Centre for Non-power Nuclear Technology
- College of Chemistry and Biological Sciences
- Hubei University of Science and Technology
- People's Republic of China
| | - Minghu Wu
- Hubei Collaborative Innovation Centre for Non-power Nuclear Technology
- College of Chemistry and Biological Sciences
- Hubei University of Science and Technology
- People's Republic of China
| | - Haibing Guo
- Hubei Collaborative Innovation Centre for Non-power Nuclear Technology
- College of Chemistry and Biological Sciences
- Hubei University of Science and Technology
- People's Republic of China
| | - Jian Wang
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| |
Collapse
|
31
|
Liu X, Xu C, Wang M, Liu Q. Trifluoromethyltrimethylsilane: nucleophilic trifluoromethylation and beyond. Chem Rev 2014; 115:683-730. [PMID: 24754488 DOI: 10.1021/cr400473a] [Citation(s) in RCA: 839] [Impact Index Per Article: 83.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xiao Liu
- Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | | | | | | |
Collapse
|
32
|
Song A, Zhang X, Song X, Chen X, Yu C, Huang H, Li H, Wang W. Construction of Chiral Bridged Tricyclic Benzopyrans: Enantioselective Catalytic Diels-Alder Reaction and a One-Pot Reduction/Acid-Catalyzed Stereoselective Cyclization. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402170] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
33
|
Song A, Zhang X, Song X, Chen X, Yu C, Huang H, Li H, Wang W. Construction of chiral bridged tricyclic benzopyrans: enantioselective catalytic Diels-Alder reaction and a one-pot reduction/acid-catalyzed stereoselective cyclization. Angew Chem Int Ed Engl 2014; 53:4940-4. [PMID: 24664928 DOI: 10.1002/anie.201402170] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Indexed: 11/08/2022]
Abstract
An asymmetric two-step approach to chiral bridged tricyclic benzopyrans, core structures featured in various natural products, is described. In the synthesis, an unprecedented enantioselective catalytic decarboxylative Diels-Alder reaction is developed using readily available coumarin-3-carboxylic acids and aldehydes as reactants under mild reaction conditions. Notably, the decarboxylation-assisted release of the catalyst enables the process to proceed efficiently with high enantio- and diastereoselectivity. Furthermore, a one-pot procedure for either a LiAlH4 - or NaBH4 -mediated reduction with subsequent acid-catalyzed intramolecular cyclization of the Diels-Alder adducts was identified for the efficient formation of the chiral bridged tricyclic benzopyrans.
Collapse
Affiliation(s)
- Aiguo Song
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, NM 87131 (USA) http://chemistry.unm.edu/faculty_bio/wwang.html
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Nakamura S. Catalytic enantioselective decarboxylative reactions using organocatalysts. Org Biomol Chem 2013; 12:394-405. [PMID: 24270735 DOI: 10.1039/c3ob42161a] [Citation(s) in RCA: 134] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Catalytic decarboxylative reactions are attractive as biomimetic reactions and environmentally friendly reaction processes. In this review, the origin and recent development of organocatalytic enantioselective decarboxylative reactions of malonic acid half oxy- or thioesters, or β-ketoacids are summarized.
Collapse
Affiliation(s)
- Shuichi Nakamura
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| |
Collapse
|
35
|
Singjunla Y, Baudoux J, Rouden J. Direct synthesis of β-hydroxy-α-amino acids via diastereoselective decarboxylative aldol reaction. Org Lett 2013; 15:5770-3. [PMID: 24188057 DOI: 10.1021/ol402805f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A straightforward metal-free synthesis of anti-β-hydroxy-α-amino acids is described. The organic base-mediated decarboxylative aldol reaction of cheap, readily available α-amidohemimalonates with various aldehydes afforded under very mild conditions anti-β-hydroxy-α-amido esters in high yields and complete diastereoselectivity. Simple one-pot subsequent transformations enabled the corresponding anti-β-hydroxy-α-amino acids or in a few examples their syn diastereomers to be obtained directly using epimerization conditions.
Collapse
Affiliation(s)
- Yuttapong Singjunla
- Laboratoire de Chimie Moléculaire et Thioorganique, ENSICAEN-Université de Caen, CNRS, Institut Normand de Chimie Moléculaire, Médicinal et Macromoléculaire (INC3M) , 6, Boulevard du Maréchal Juin, 14050 Caen, France
| | | | | |
Collapse
|
36
|
Bae HY, Sim JH, Lee JW, List B, Song CE. Organocatalytic Enantioselective Decarboxylative Aldol Reaction of Malonic Acid Half Thioesters with Aldehydes. Angew Chem Int Ed Engl 2013; 52:12143-7. [DOI: 10.1002/anie.201306297] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Indexed: 11/07/2022]
|
37
|
Bae HY, Sim JH, Lee JW, List B, Song CE. Organocatalytic Enantioselective Decarboxylative Aldol Reaction of Malonic Acid Half Thioesters with Aldehydes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306297] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
38
|
Bew SP, Stephenson GR, Rouden J, Martinez-Lozano LA, Seylani H. Malonic Acid Half Oxyesters and Thioesters: Solvent-Free Synthesis and DFT Analysis of Their Enols. Org Lett 2013; 15:3805-7. [DOI: 10.1021/ol400804b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sean P. Bew
- School of Chemistry, University of East Anglia, Norwich Research Park, NR4 7TJ, U.K., and Laboratoire de Chime Moleculaire et Thio-organique (LCMT), UMR CNRS 6507, ENSICAEN, 6 Boulevard du Marechal Juin, 14050 Caen, France
| | - G. Richard Stephenson
- School of Chemistry, University of East Anglia, Norwich Research Park, NR4 7TJ, U.K., and Laboratoire de Chime Moleculaire et Thio-organique (LCMT), UMR CNRS 6507, ENSICAEN, 6 Boulevard du Marechal Juin, 14050 Caen, France
| | - Jacques Rouden
- School of Chemistry, University of East Anglia, Norwich Research Park, NR4 7TJ, U.K., and Laboratoire de Chime Moleculaire et Thio-organique (LCMT), UMR CNRS 6507, ENSICAEN, 6 Boulevard du Marechal Juin, 14050 Caen, France
| | - Luis A. Martinez-Lozano
- School of Chemistry, University of East Anglia, Norwich Research Park, NR4 7TJ, U.K., and Laboratoire de Chime Moleculaire et Thio-organique (LCMT), UMR CNRS 6507, ENSICAEN, 6 Boulevard du Marechal Juin, 14050 Caen, France
| | - Haseena Seylani
- School of Chemistry, University of East Anglia, Norwich Research Park, NR4 7TJ, U.K., and Laboratoire de Chime Moleculaire et Thio-organique (LCMT), UMR CNRS 6507, ENSICAEN, 6 Boulevard du Marechal Juin, 14050 Caen, France
| |
Collapse
|
39
|
Suh CW, Chang CW, Choi KW, Lim YJ, Kim DY. Enantioselective decarboxylative aldol addition of β-ketoacids to isatins catalyzed by binaphthyl-modified organocatalyst. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.132] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
40
|
Zheng Y, Xiong HY, Nie J, Hua MQ, Ma JA. Biomimetic catalytic enantioselective decarboxylative aldol reaction of β-ketoacids with trifluoromethyl ketones. Chem Commun (Camb) 2012; 48:4308-10. [DOI: 10.1039/c2cc30949a] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|