Yl. Xu et Wr. Dolbier, Synthesis of trifluoromethylated amines using 1,1-bis(dimethylamino)-2,2,2-trifluoroethane, J ORG CHEM, 65(7), 2000, pp. 2134-2137
Lewis acid-catalyzed deamination of aminal, 1,1-bis(dimethylamino)-2,2,2-tr
ifluoroethane using ZnI2 in ether, generates the 2,2,2-trifluoro-1,1-dimeth
ylaminoethyl carbocation, which undergoes synthetically useful electrophili
c reactions with alkynes, a variety of electron-rich alkenes, and TMS cyani
de to form trifluoromethylated alkynylamines, homoallylic amines, alpha/bet
a-unsaturated ketones, and cyanoamines in fair to good yields.