ISOHEXIDE MONOTRIFLATES AND PROCESS FOR SYNTHESIS THEREOF
申请人:ARCHER DANIELS MIDLAND COMPANY
公开号:US20160016969A1
公开(公告)日:2016-01-21
Isohexide monotriflate compounds and a method of preparing the same are described. The method involves reacting a mixture of an isohexide, a trifluoromethanesulfonate anhydride, and either 1) a nucleophilic base or 2) a combination of a non-nucleophilic base and a nucleophile. The isohexide monotriflate compounds can serve as precursor materials from which various derivative compounds can be synthesized.
Visible‐Light‐Enabled Trifluoromethylative Pyridylation of Alkenes from Pyridines and Triflic Anhydride
作者:Kangjae Lee、Seojin Lee、Namhoon Kim、Seonyul Kim、Sungwoo Hong
DOI:10.1002/anie.202004439
日期:2020.8.3
strategy for visible‐light‐enabled site‐selective trifluoromethylative pyridylation of unactivated alkenes has been developed using pyridines and triflic anhydride (Tf2O). Intriguingly, the N‐triflylpyridinium salts, generated in situ from pyridines and Tf2O, serve as effective modular bifunctionalreagents to install both CF3 and pyridyl groups to various olefins while controlling C4‐selectivity in radical