Proton magnetic resonance spectra of substituted 6,7-dimethoxycinnolines
Abstract
The n.m.r. spectra of 6- and 6,7-substituted cinnolines have been analysed; they confirm the chemical findings of other workers on the position of alkylation of 4-hydroxycinnolines, and the assignments of protons in the cinnolines. The relative values of chemical shifts in deuteriochloroform and other solvents are discussed.