Chemistry of Heterocyclic Compounds p. 1439 - 1444 (1992)
Update date:2022-08-03
Topics:
Kauss, V. Ya.
Mishnev, A. F.
Kalvin'sh, I. Ya.
The betaines 2-amino-4,4-dimethyl-Δ2-1,3,4-thiadiazolin-4-io-5-acetates are formed in the reaction of 1,1-dimethylthiosemicarbazides with propiolic acid. 2-Amino-4,4-disubstituted-5-carboalkoxy-methyl-Δ2-1,3,4-thiadiazolinium chlorides, the structure of which has been confirmed by X-ray crystallography, are formed by the reaction of 1,1-disubstituted thiosemicarbazides lower alkyl propiolates in the presence of hydrochloric acid.
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