Synthesis of N-t-alkyl-1,2-diacylhydrazines

Details Synthesis of N-t-alkyl-1,2-diacylhydrazines Synthesis of N-t-alkyl-1,2-diacylhydrazines

1988-04-26

1992-05-05

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

544182, 544194, 544204, 544208, 544209, 544210, 544211, 544212, 544213, 544215, 544219, 544224, 544238, 544239, 544240, 544242, 544295, 544296, 544298, 544299, 544300, 544301, 544322, 544324, 544325, 544326, 544327, 544328, 544329, 544330, 544331, 544332, 544333, 544335, 544336, 544357, 544405, 544406, 544407, 546184, 546186, 546189, 546192, 546193, 546195, 546201, 546205, 546206, 546208, 546209, 546212, 546214, 546215, 546216, 546221, 546222, 546224, 546225, 546244, 546245, 548225, 548226, 548227, 548228,

Patent

active

051109867

ABSTRACT:
This application relates to a process for preparing a N-t-alkyl-1,2-diacylhydrazine by reacting a 1,3,4-oxadiazole with a tertiary alkyl cation precursor in the presence of a strong acid catalyst. Preferably, the 1,3,4-oxadiazole is a 2,5-disubstituted-1,3,4-oxadiazole and more preferably a 2,5-diaryl-1,3,4-oxadiazole. The strong acid catalyst is preferably a sulfur containing acid and more preferably sulfuric acid.

REFERENCES:
patent: 4118358 (1978-10-01), Silver et al.
patent: 4310696 (1982-01-01), Hojo et al.
patent: 4435600 (1984-03-01), Hasegawa et al.
Solomons, Organic Chemistry, 2nd Ed., John Wiley & Sons, New York, (1980), pp. 191, 192, and 196.
Iwakura et al., "Polyhydrazides. III. N-Methylated Polyhydrazides by Ring-Opening, etc.", Journal of Polymer Science: Part A-1, vol. (6), pp. 3381-3393, (1968).
6 J. Polymer SCI.A-1, 3381-3393, (1968).

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