N-Fluoroalkylation of amines was efficiently achieved using fluoroalkyl alcohols activated by 2,4,6-trichloro-1,3,5-triazine under mild and catalyst-free conditions.
The Reaction of 4-Substituted Aryl Isocyanates with NaBH4/Trifluoroacetic Acid (TFA)
作者:Kenneth Turnbull、Douglas M. Krein
DOI:10.1055/s-1999-3400
日期:1999.3
Treatment of 4-substituted aryl isocyanates (cf. 2a-f) with NaBH4/TFA leads to the corresponding 4-substituted N,N-bis(2,2,2-trifluorethyl)aniline derivatives (3a-d) in excellent yield except where an electron-withdrawing group is present (cf. 2e) or the para-position is open (cf. 2f).