Process for preparing 2-methyl-2-hydroxypropyl piperazine-1-carb

Details Process for preparing 2-methyl-2-hydroxypropyl piperazine-1-carb Process for preparing 2-methyl-2-hydroxypropyl piperazine-1-carb

1981-04-24

1985-10-29

Raymond, Richard L.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544389, C07D40304

Patent

active

045501645

ABSTRACT:
Isobutylene carbonate and certain 1-substituted piperazine compounds are reacted in a process that forms 2-methyl-2-hydroxypropyl 4-substituted piperazine-1-carboxylate compounds which are medicinal agents or synthetic intermediates for such agents. The features of the process allow the preparation of an essentially pure 2-methyl-2-hydroxypropyl carboxylate compound.

REFERENCES:
patent: 3703538 (1972-11-01), Mulheimmer et al.
patent: 3935213 (1976-01-01), Hess
Lucas, Organic Chemistry, 2nd ed. 1953, Amer. Book Co., New York, p. 376.
Katzhendler et al., "Journ. Chem. Soc.", Perkins Trans., vol. 2, 1972, pp. 2019-2025.
Baizer et al., "J. Org. Chem.", vol. 22, 1972, p. 1706.

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