Am. Vasil'Tsov et al., Unexpected formation of 1-vinyl-2-[2 '-(6 '-methylpyridyl)]pyrrole from dimethylglyoxime and acetylene in the Trofimov reaction, MENDELEEV C, (2), 2001, pp. 74-75
Dimethylglyoxime reacts with acetylene under pressure in the KOH-DMSO syste
m to give 1-vinyl-2-[2'-(6'-methylpyridyl)]pyrrole along with the expected
products of the Trofimov reaction (O-vinyloxime, pyrrole and dipyrrole).