A New and Safe Approach to (N-Vinylimino)phosphoranes
摘要:
1-[alpha-(Phosphoranylideneamino)alkyl] benzotriazoles, obtained by Staudinger phosphenimide-forming reaction of (azidoalkyl)benzotriazoles, possessing a proton in a beta-position to nitrogen reacted with sodium hydride in THF to afford (N-vinylimino)phosphoranes in high yields. The latter were trapped with chalcone to give the corresponding 2,4-diphenylpyridines.
Katritzky Alan R., Mazurkiewicz Roman, Stevens Christian V., Gordeev Mikh+, Synth. Commun, 24 (1994) N 20, S 2955-2972
作者:Katritzky Alan R., Mazurkiewicz Roman, Stevens Christian V., Gordeev Mikh+
DOI:——
日期:——
A New and Safe Approach to (N-Vinylimino)phosphoranes
作者:Alan R. Katritzky、Roman Mazurkiewicz、Christian V. Stevens、Mikhail F. Gordeev
DOI:10.1021/jo00089a017
日期:1994.5
1-[alpha-(Phosphoranylideneamino)alkyl] benzotriazoles, obtained by Staudinger phosphenimide-forming reaction of (azidoalkyl)benzotriazoles, possessing a proton in a beta-position to nitrogen reacted with sodium hydride in THF to afford (N-vinylimino)phosphoranes in high yields. The latter were trapped with chalcone to give the corresponding 2,4-diphenylpyridines.
A Convenient Two-Pot Conversion of Aldehydes to<i>Sec</i>-Alkyl Primary Amines : Reactions of α-(Benzotriazol-1-yl)Alkyliminophosphoranes with Organocerium (III) Or Grignard Reagents
作者:Alan R. Katritzky、Roman Mazurkiewicz、Christian V. Stevens、Mikhail F. Gordeev、Peter J. Steel
DOI:10.1080/00397919408010616
日期:1994.11
1-(a-Phosphoroylideneaminoalky1)benzotriazoles reacted with organocerium (III) dichlorides or Grignardreagents to produce N-(sec-alkyl) iminophosphoranes, which were hydrolyzed to sec-alkyl primary amines in good overall yields. This sequence provides a convenient two-pot transformation of aldehydes to sec-alkyl primary amines.