Process for preparation of 1-acyl-2-substituted hydrazines

Details Process for preparation of 1-acyl-2-substituted hydrazines Process for preparation of 1-acyl-2-substituted hydrazines

1996-02-21

1997-09-30

Kumar, Shailendra

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549362, 549398, 549405, 564148, 564149, 564150, C07D31104, C07C24102

Patent

active

056727232

ABSTRACT:
The present invention can provide a process for the preparation of an 1-acyl-2-substituted hydrazine compound from a mixture containing the 1-acyl-2-substituted hydrazine and an 1-acyl-1-substituted hydrazine by selective hydrolysis or alcoholysis of the 1-acyl-yl-1-substituted hydrazine in the presence of an acid catalyst, and by separation of the resulting carboxylic acid and derivative thereof.
The 1-acyl-2-alkyl hydrazine obtained has a high purity.

REFERENCES:
patent: 4814349 (1989-03-01), Addor et al.
J. Heterocyl. Chem. vol. 14, No. 7, 1977 pp. 1147-1150, N.P. Peet and S. Sunder `Synthesis of 3-M
J. Indian Chem. Soc. vol. 64, o. 2, 1987 pp. 122-124, M.H. Jagdale et al., `Kinetics and Mechanism of Acid Hydrolysis of Nitrobenzoic Acid Hydrazides`.

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