A. Fahmy, N. Aly, A. Nada
Oct 1, 1977
Citations
0
Influential Citations
13
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
N-(Arylsulfonyloxy)phthalimides undergo base-catalyzed Lossen rearrangement with amines, and amino acids to give N,N′-diaryl ureas and amine salts. They behave similarly with phenylhydrazine in alcohol to give a mixture of N-hydroxyphthalimide and phenylhydrazine salts. However, N-(arylsulfonyloxy)phthalimides undergo isomerization followed by Beckmann rearrangement to give a mixture of 4-aryl-1H-2,3-benzoxazin-1-ones and diarylsulfones.