Access to Trifluoromethylketones from Alkyl Bromides and Trifluoroacetic Anhydride by Photocatalysis
作者:Hai‐Wu Du、Yi‐Dan Du、Xian‐Wang Zeng、Wei Shu
DOI:10.1002/anie.202308732
日期:2023.9.18
Catalytic methods for direct access to aliphatic trifluoromethyl ketones from feedstocks remain underdeveloped, partially owing to the high reactivity and instability of the trifluoroacetyl radical. Reported herein is the photocatalytic synthesis of trifluoromethyl ketones fromalkylbromides and trifluoroacetic anhydride. The reaction features visible-light catalysis and halogen-atom transfer (XAT)
In order to find novel nonhydroxamate histone deacetylase (HDAC) inhibitors, a series of thiol-based compounds modeled after suberoylanilide hydroxamic acid (SAHA) was synthesized, and their inhibitory effect on HDACs was evaluated. Compound 6, in which the hydroxamic acid of SAHA was replaced by a thiol, was found to be as potent as SAHA, and optimization of this series led to the identification of HDAC inhibitors more potent than SAHA. (C) 2004 Elsevier Ltd. All rights reserved.