Preparation of hydroxyalkylpiperazinones by reacting glyoxal wit

Details Preparation of hydroxyalkylpiperazinones by reacting glyoxal wit Preparation of hydroxyalkylpiperazinones by reacting glyoxal wit

1987-08-13

1989-03-21

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

544384, C07D24308

Patent

active

048144436

ABSTRACT:
A process for the preparation of 4-(2-hydroxyalkyl)-2-piperazinones and their substituted derivatives comprising reacting an N-hydroxyalkylalkylenediamine, e.g.2-[(2-aminoethyl)amino]ethanol, or a hydrocarbyl substituted derivative thereof with an .alpha.,.beta.-dicarbonyl compound, e.g. glyoxal, an alkyl-substituted derivative of glyoxal or a glyoxal equivalent. Certain hexahydro-4-(hydroxyalkyl)-2H-1,4-diazepin-2-ones have been made which are new compounds.

REFERENCES:
patent: 3878199 (1975-04-01), Beale, Jr.
patent: 3966711 (1976-06-01), Rasberger
patent: 4207228 (1980-06-01), Lai et al.

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