de Boer,T.J.; van Velzen,J.C., Recueil des Travaux Chimiques des Pays-Bas, <hi>1960</hi>, vol. 79, p. 231 - 246
作者:de Boer,T.J.、van Velzen,J.C.
DOI:——
日期:——
Deoxofluorination of Aliphatic Carboxylic Acids: A Route to Trifluoromethyl-Substituted Derivatives
作者:Maksym Bugera、Serhii Trofymchuk、Karen Tarasenko、Olga Zaporozhets、Yurii Pustovit、Pavel K. Mykhailiuk
DOI:10.1021/acs.joc.9b02596
日期:2019.12.20
A practical method for the synthesis of functionalized aliphatic trifluoromethyl-substituted derivatives from aliphatic acids is developed. The transformation proceeds with sulfur tetrafluoride in the presence of water as a key additive. Compared to previous methods, the reaction gives products with full retention of stereo- and absolute configuration of chiral centers.
2-(Trifluoromethyl)cyclopropanamine was synthesized. The key step of the synthesis is a transformation of the carboxy group into the trifluoromethyl group by using sulfur tetrafluoride. Twenty gram of the target product was conveniently prepared in a single batch. fluorine - trifluoromethyl group - amines - cyclopropyl group - sulfur tetrafluoride