K. Gustav et al., SPECTROSCOPIC STUDIES ON ORGANIC CARBONYL -COMPOUNDS .8. SYSTEMATIC 2-DIMENSIONAL NMR-MEASUREMENTS ON DIMETHYLAMINOPHENYL SUBSTITUTED BETA-DIKETONES, Monatshefte fuer Chemie, 124(11-12), 1993, pp. 1177-1180
Two-dimensional NMR-spectra (C-H-COSY and H-H-COSY) of vinyloge beta-d
iketones were measured. The results indicate the alternance of the che
mical shifts along the unsaturated chain of the compounds. The experim
ental data are compared with quantum-chemical calculations.,