76952-16-4Relevant articles and documents
THE REMARKABLY FACILE REARRANGEMENT OF A 2,3,5,6-TETRAKETOPIPERAZINE TO 4,5-DIOXOIMIDAZOLIDINE-2-CARBOXYLIC ACID DERIVATIVES AND ITS REVERSAL
Hoare, John H.,Yates, Peter
, p. 281 - 284 (2007/10/02)
Reaction of N,N'-dibenzyl-2,3,5,6-piperazinetetraone (1) with boiling ethanol gives ethyl N,N'-dibenzyl-4,5-dioxoimidazolidine-2-carboxylate (2a).Analogous rearrangement products are formed with methyl, n-propyl, n-butyl, and isopropyl alcohols, and ethyl