A general approach to substituted diphenyldiazenes
作者:Toni A. Lutz、Patrick Spanner、Klaus T. Wanner
DOI:10.1016/j.tet.2016.02.011
日期:2016.3
A general and practical synthetic method for the construction of unsymmetrically substituted diphenyldiazenes based on classical azo coupling reaction has been developed. A key feature of this method is the use of N,N-diallyl protected aniline derivatives as coupling components. The N,N-diallyl moiety of the coupling component warrants sufficient reactivity and allows to avoid formation of constitutional
Highly selective N-allylation of anilines under microwave irradiation
作者:Meiyu Liu、Xie Wang、Xiaoliang Sun、Wei He
DOI:10.1016/j.tetlet.2014.03.044
日期:2014.4
for the preparation of a variety of mono- and bis-allylated anilines via the reaction of allyl bromide with a wide range of anilines undermicrowaveirradiation is described. This approach allows use of mild conditions and short reaction times to give high selectivities and excellent yields.
Reaction of organolithiums with fluoro-N,N-diallylanilines: A benzyne-mediated anionic cascade leading to 3,4-disubstituted indolines
作者:William F. Bailey、Matthew W. Carson
DOI:10.1016/s0040-4039(97)00032-4
日期:1997.2
Regioselective ortho-lithiation of either 2-fluoro- (2) or 3-fluoro-N,N-diallylaniline (3) initiates an anionic cascade leading to an N-allyl-3,4-disubstitutedindoline. The transformation involves loss of LiF from the ortho-lithiated species, regioselective intermolecular addition of the organolithium to the benzyne intermediate, and cyclization of the resulting [6-substituted-2-(N,N-diallylamino)phenyl]lithium. (C) 1997 Elsevier Science Ltd.