960化工网
RES-TOCSY: a simple approach to resolve overlapped 1H NMR spectra of enantiomers†
Lokesh,Sachin Rama Chaudhari,N. Suryaprakash
Organic & Biomolecular Chemistry Pub Date : 12/04/2013 00:00:00 , DOI:10.1039/C3OB42087F
Abstract

Chiral auxiliaries are used for the NMR spectroscopic study of enantiomers. Often the presence of impurities, overlap of peaks, line broadening and the multiplicity pattern restrict the chiral analysis in the 1D 1H NMR spectrum. The present study introduces a simple 2D 1H NMR experiment to unravel the overlapped spectrum. The experiment separates the spectra of enantiomers, thereby allowing the unambiguous assignment of all the coupled peaks and the measurement of enantiomeric excess (ee) from a single experiment even in combinatorial mixtures.

Graphical abstract: RES-TOCSY: a simple approach to resolve overlapped 1H NMR spectra of enantiomers
平台客服
平台客服
平台在线客服