13C NMR spectra of some 4-substitutedN-acetonyl -N,N-dimethyl-N-phenacyl-ammonium bromides
作者:Jean Grandjean、Pierre Laszlo、Eduardo Leite Do Canto、Roberto Rittner
DOI:10.1002/mrc.1260271118
日期:1989.11
The 13CNMR signals for some 4‐substituted N‐acetonyl‐N,N‐dimethyl‐N‐phenacylammonium bromides were assigned. The HETERCOSY and COLOC sequences allow an unambiguous distinction between the very similar signals of the methylene carbons. The chemical shifts observed for the aromatic ring carbons are in close agreement with those calculated from substituent increments.