作者:V. M. Lynch、C. Hulme、P. Magnus、B. E. Davis
DOI:10.1107/s0108270194005676
日期:1995.2.15
As an alternative to the electrochemical procedure [Shono (1984). Tetrahedron, 40, 811-850], N-acyliminium-ion precursors may be generated utilizing novel hypervalent iodine chemistry. The crystal structures of 2-azido-N,N-diphenylpyrrolidine-1-carboxamide, C17H17N5O, and 2,5-diazido-N-(3,4,5-trimethoxybenzoyl)pyrrolidine, C14H17N7O4, are reported. In both instances the pyrrolidine ring is found in the half-chair conformation. The azido groups are non-linear with an average bond angle of 172.9 (1)-degree.