R. Matheson, A. Mcculloch, A. Mcinnes
Oct 15, 1979
Citations
0
Influential Citations
5
Citations
Journal
Canadian Journal of Chemistry
Abstract
The AlCl3-promoted reaction of methyl 2,5-dimethylpyrrole-1-carboxylate 1 with dimethyl acetylenedicarboxylate affords under certain conditions a low yield of 2,5-dimethyl-2-tricarbomethoxyvinyl-2H-pyrrole 3. The structure of the latter was established on the basis of detailed 1H and 13C nmr studies, and confirmed by conversion to dimethyl 5-methyl-5-(3-oxobutyl)-3-pyrrolin-2-one-3,4-dicarboxylate 4.