The Journal of Organic Chemistry

Study of the Conformational Equilibria of 2-Z-3-Methyl-1, 3, 2-oxazaphosphorinanes. Steric and Stereoelectronic Influences on the Orientation of the Me2N Substituent …

Y Huang, J Yu, WG Bentrude

Index: Huang, Yande; Yu, Jaehoon; Bentrude, Wesley G. Journal of Organic Chemistry, 1995 , vol. 60, # 15 p. 4767 - 4773

Full Text: HTML

Citation Number: 13

Abstract

The conformations of a series of 1, 3, 2-oxazaphosphorinanes containing three-coordinate phosphorus, 1-9, have been determined by the use of'H, 31P, and 13C NMR spectroscopy. The rings were substituted at ring nitrogen, N (3), with a methyl group to compare its effect on conformational energies with those of 1, 3, 2-oxazaphosphorinanes reported earlier that featured a larger substituent at N (3), Ph or i-Pr. Quite expectedly, like those rings ...