Chemistry of Heterocyclic Compounds p. 208 - 218 (1995)
Update date:2022-08-03
Topics:
Karakhanov, R. A.
Kelarev, V. I.
Koshelev, V. N.
Morozova, G. V.
Dibi, Ammar
The condensation of hydrochloride salts of iminoesters of furan acids with hydrazides of carboxylic acids gives 2,5-disubstituted 1,3,4-oxadiazoles containing furan fragments.Such compounds are also formed in the condensation of hydrazides of 5-R-furan-2-carboxylic acids with hydrochloride salts of carboxylic acid iminoesters.The reaction of furan acids with hydrazine dihydrochloride in polyphosphoric acid gave symmetrically disubstituted 1,3,4-oxadiazoles containing furan fragments.
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