CAS OpenIR
Cobalt catalyzed synthesis of alpha, beta-unsaturated esters from esters and alcohols via mild O-2-interrupted hydrogen borrowing
Wang, G; Li, ZX; Li, CS; Zhang, SJ; Wang, Gang; Li, Zengxi; Li, Chunshan; Zhang, Suojiang
2018
Source PublicationJOURNAL OF CATALYSIS
ISSN0021-9517
Volume368Pages:228
Abstract

The implementation of direct and mild catalytic synthesis of products from benign materials using inexpensive catalysts is a major goal of chemists. Herein, a mild O-2-interrupted hydrogen borrowing strategy using easily accessible and high efficient cobalt complex was reported for direct synthesis of alpha, beta-unsaturated esters from unactivated esters and alcohols. This new route had good tolerance on broad substrate scope (alcohols, acetates, propionates and dios) and functional group with the highest yield of 89.1%. Systematic mechanism investigation revealed the cobalt complex was activated by t-BuOK via double deprotonation of PN5P ligand and removal of dichloro ligands, followed by two-fold alcohols activation and dehydrogenation. Also, the oxygen atmosphere was demonstrated very crucial for such interrupted hydrogen borrowing pathway. (C) 2018 Elsevier Inc. All rights reserved.

KeywordAlpha, Beta-unsaturated Ester One-step Ester N-alkylation Alcohol C-c Cobalt Complex Aldol Condensation Interrupted Hydrogen Borrowing Unactivated Amides Aromatic-amines Methyl Acrylate Ionic Liquid Ketones Methanol
SubtypeArticle
DOI10.1016/j.jcat.2018.10.005
WOS IDWOS:000452582500022
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26756
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Wang, G,Li, ZX,Li, CS,et al. Cobalt catalyzed synthesis of alpha, beta-unsaturated esters from esters and alcohols via mild O-2-interrupted hydrogen borrowing[J]. JOURNAL OF CATALYSIS,2018,368:228.
APA Wang, G.,Li, ZX.,Li, CS.,Zhang, SJ.,Wang, Gang.,...&Zhang, Suojiang.(2018).Cobalt catalyzed synthesis of alpha, beta-unsaturated esters from esters and alcohols via mild O-2-interrupted hydrogen borrowing.JOURNAL OF CATALYSIS,368,228.
MLA Wang, G,et al."Cobalt catalyzed synthesis of alpha, beta-unsaturated esters from esters and alcohols via mild O-2-interrupted hydrogen borrowing".JOURNAL OF CATALYSIS 368(2018):228.
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