Reference Data 1H and 13C NMR chemical shift assignment of some 3H-naphtho [ 2,1-b ] pyrans
Résumé
The 1H and 13C NMR resonances of four 3H-naphtho[2,1-b]pyrans were completely and unambiguously assigned by a combination of homonuclear (gs-COSY), 1H-detected heteronuclear one-bond (gs-HMQC) and long-range (gs-HMBC) gradient-selected correlation experiments.