Synthesis of trifluoromethyl ketones by nucleophilic trifluoromethylation of esters under a fluoroform/KHMDS/triglyme system

Bibliographic Details
Title: Synthesis of trifluoromethyl ketones by nucleophilic trifluoromethylation of esters under a fluoroform/KHMDS/triglyme system
Authors: Yamato Fujihira, Yumeng Liang, Makoto Ono, Kazuki Hirano, Takumi Kagawa, Norio Shibata
Source: Beilstein Journal of Organic Chemistry, Vol 17, Iss 1, Pp 431-438 (2021)
Publisher Information: Beilstein-Institut, 2021.
Publication Year: 2021
Collection: LCC:Science
LCC:Organic chemistry
Subject Terms: fluoroform, greenhouse gas, hfc-23, trifluoromethyl ketones, trifluoromethylation, Science, Organic chemistry, QD241-441
More Details: A straightforward method that enables the formation of biologically attractive trifluoromethyl ketones from readily available methyl esters using the potent greenhouse gas fluoroform (HCF3, HFC-23) was developed. The combination of fluoroform and KHMDS in triglyme at −40 °C was effective for this transformation, with good yields as high as 92%. Substrate scope of the trifluoromethylation procedure was explored for aromatic, aliphatic, and conjugated methyl esters. This study presents a straightforward trifluoromethylation process of various methyl esters that convert well to the corresponding trifluoromethyl ketones. The tolerance of various pharmacophores under the reaction conditions was also explored.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1860-5397
Relation: https://doaj.org/toc/1860-5397
DOI: 10.3762/bjoc.17.39
Access URL: https://doaj.org/article/cf1e55f63b534873bad10362bf4bd2af
Accession Number: edsdoj.f1e55f63b534873bad10362bf4bd2af
Database: Directory of Open Access Journals
More Details
ISSN:18605397
DOI:10.3762/bjoc.17.39
Published in:Beilstein Journal of Organic Chemistry
Language:English