名称:
Proximity Effect in the Hydrogen-Deuterium Exchange and Deethoxycarbonylation of Peri-substituted Naphthalene with the 1,2,3-Triazole Ring
摘要:
The H-D exchange reaction and the deethoxycarboxylation in D2O of 1-[8-(4-ethoxycarbonyl-1H-1,2,3-triazol-1-yl)-1-naphthyl]-3-methyl-4-ethoxycarbonyl-1H-1,2,3-triazolium salts (1) were studied by H-1 nmr spectroscopy and compared with those of 1-(1-naphthyl)-3-methyl-4-ethoxycarbonyl-1H-1,2,3-triazolium salts (2). The reaction rates of 1 are found to be much faster than those of 2. The results suggest that the triazole ring in 1 interacts sterically with the N-methylated triazole ring to accelerate the reactions.