Electronic control of stereoselectivity in the chlorination of 1,4-dihydro-1,4-iminonaphthalenes (7-azabenzonorbornadienes) with N-chlorosuccinimide
作者:John W. Davies、Michael L. Durrant、Matthew P. Walker、John R. Malpass
DOI:10.1016/s0040-4020(01)80447-6
日期:1992.1
system is described. At low temperatures, the ratio of syn- and anti- N-chloroamines formed under conditions of kinetic control can be determined; this ratio is shown to be influenced substantially by variation in the electronic character of the aryl ring. At higher temperatures, inversion at nitrogen leads to different (thermodynamic) invertomerratios which also vary as a function of substitution