Tetrahedron letters

The staudinger reaction of o-azidobenzaldehyde with triphenylphosphine revisited influence of the temperature on the nature of the reaction products.

P Molina, A Arques, I Cartagena, R Obón

Index: Molina, Pedro; Arques, Antonio; Cartagena, Immaculada; Obon, Rosario Tetrahedron Letters, 1991 , vol. 32, # 22 p. 2521 - 2524

Full Text: HTML

Citation Number: 21

Abstract

Abstract The reaction of o-azidobenzaldehyde 1 with TPP at 0 C leads to the expected iminophosphorane 2 and the indazole derivative 3 while at− 20 C the phosphazide 4 was the only reaction product. The close related compounds 2 and 4 shows stricking differences in reactivity towards primary amines.