Abstract
Reaction of diethylenetriamine with glyoxal or N,N'‐dicyclohexylethylenediimine forms the novel heterocycle 1,2,3,4,5,7a‐hexahydroimidazo[1,2‐a]pyrazine 1 (R1 = R2 = H) which is isolated as its dimer. Catalytic hydrogenation converts 1 into N(2‐aminoethyl)piperazine in high yield.
Original language | English (US) |
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Pages (from-to) | 839-840 |
Number of pages | 2 |
Journal | Journal of Heterocyclic Chemistry |
Volume | 30 |
Issue number | 3 |
DOIs | |
State | Published - 1993 |
ASJC Scopus subject areas
- Organic Chemistry