Quanrui Wang, Xianjun Liu*, F. Tao
Dec 1, 2000
Citations
0
Influential Citations
4
Citations
Journal
Synthetic Communications
Abstract
Abstract Ethyl (l,l,l-trifluoro-2-propylidene)carbazate is converted with tert-butyl hypochlorite to the 2-chloro-l,l,l-trifluoro-2-propyl azo compound 2, which reacts with antimony pentachloride to produce the trifluoromethylated 1-aza-2-azoniaallene salt 3 as a highly reactive intermediate. The cation 3 is employed as a CF3-containing synthon for the preparation of the 5-trifluoromethylated 1H-1,2,4-triazoliumpicrates 6a-e.