A convenient synthetic route to N-aryl and N-alkylamino(alkyl) phosphonates and phosphine oxides
作者:A. Couture、E. Deniau、P. Woisel、P. Grandclaudon
DOI:10.1016/0040-4039(95)00288-n
日期:1995.4
A variety of phosphorylated N-aryl and N-alkyl N-formyl and N-tert-butoxycarbonylaminomethyl derivatives have been efficiently prepared by treatment of the corresponding chloromethyl derivatives with a trialkyl phosphite or an alkyl diphenylphosphinite. These bifunctional compounds may be deprotonated with LDA and further submitted to electrophilic substitution. An acidic treatment of the resulting
4-Aryl and heteroaryl-1(2H)-isoquinolones have been prepared by base promoted cyclization of phosphorylated o-aroyl and heteroaroyl benzamides. Subsequent reduction of the carbonyl and styryl functions of the annulated products has given rise to 4-aryl-1,2,3,4-tetrahydroisoquinolines.