N-nitrosothialdine. Synthesis, X-ray crystallography, and N-N rotational barrier
作者:Thomsen J. Hansen、Rosalie M. Angeles、Larry K. Keefer、Cynthia S. Day、William Gaffield
DOI:10.1016/0040-4020(81)85004-1
日期:1981.1
large steric requirement of the N-N-0 system. The equatorial methyl group both displaces the nitroso group from the C-N-C plane and twists it somewhat about the N-N bond. N-Nitrosothialdine's unusually low barrier to rotation about the N-N bond (72 kJ/mole) is attributed to this steric crowding, combined with inductive electron withdrawal by the two sulfur atoms.