Process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine

Details Process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine Process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine

1978-12-21

1981-02-24

Randolph, John D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21174

Patent

active

042529581

ABSTRACT:
There is disclosed a process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine (triacetoneamine), in which a hydrazine hydrohalide salt catalyzes the reaction of an acetone compound, for example acetone or diacetone alcohol, with an ammonia donor compound, for example ammonia or 2,2,4,4,6-pentamethyl-1,2,5,6-tetrahydropyrimidine (acetonine).

REFERENCES:
patent: 3513170 (1970-05-01), Murayama et al.
patent: 3953459 (1976-04-01), Orban et al.
patent: 3963730 (1976-06-01), Murayama et al.
Chemical Abstracts, 44:5138f (1950) [Iguchi, T., J. Soc. Rubber Ind. Japan, 16, 771-774 (1943)].
Chemical Abstracts, 64:6506d (1966), [Borchert, French Patent 1,414,407, 10/15/65].
Chemical Abstracts, 84:180830m (1976), [Kamenskii, I., et al., Zm. Prikl. Khim., 1976, 49(3), 628-630].

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