Radical-Based Regioselective C–H Functionalization of Electron-Deficient Heteroarenes: Scope, Tunability, and Predictability
作者:Fionn O’Hara、Donna G. Blackmond、Phil S. Baran
DOI:10.1021/ja406223k
日期:2013.8.14
of substituents exert consistent and additive effects on the regioselectivity of substitution. This allowed us to establish guidelines for predicting regioselectivity on complex π-deficient heteroarenes, including pyridines, pyrimidines, pyridazines, and pyrazines. Since the relative contribution from opposing directing factors was dependent on solvent and pH, it was sometimes possible to tune the regiochemistry
作者:Serhii Trofymchuk、Maksym Ya. Bugera、Anton A. Klipkov、Bohdan Razhyk、Sergey Semenov、Karen Tarasenko、Viktoriia S. Starova、Olga A. Zaporozhets、Oksana Yu. Tananaiko、Anatoliy N. Alekseenko、Yurii Pustovit、Oleksandr Kiriakov、Igor I. Gerus、Andrei A. Tolmachev、Pavel K. Mykhailiuk
DOI:10.1021/acs.joc.9b03011
日期:2020.3.6
Diverse trifluoromethyl-substituted compounds were synthesized by deoxofluorination of cinnamic and (hetero)aromatic carboxylic acids with sulfur tetrafluoride. The obtained products were used as starting materials in the preparation of novel fluorinated amino acids, anilines, and aliphatic amines - valuable building blocks for medicinal chemistry and agrochemistry.