Bulletin of the Academy of Sciences of the USSR Division of Chemical Science p. 1340 - 1345 (1990)
Update date:2022-08-17
Topics:
Isagulyants, G. V.
Gitis, K. M.
Myasnikov, V. A.
Neumoeva, G. E.
Dehydrogenation of piperazine on alumina-platinum catalysts at 360-400 deg C was investigated.It was found that the alumina-platinum catalyst has low selectivity in the formation of pyrazine (yield = 43percent), and dehydrogenation is accompanied by decomposition and coke formation and products of decomposition in the formation of alkylpyrazines.The alumina-platinum catalyst in In2O3 and Re2O7 additives permits obtaining pyrazine with a yield of up to 80percent.Dehydrogenation of piperazine is accompanied by reactions of decomposition, dehydroisomerization, and alkylation to a small degree, resulting in the formation of pyrrole, methylimidazole, and alkylpyrazines.
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