Ambident Properties of 4-Substituted Thiosemicarbazides in Condensations with Fluoroacetic acid (cas 144-49-0)s

Add time:09/30/2019    Source:infona.pl

4-Substituted thiosemicarbazides react with di- and trifluoroacetic acids to give the corresponding 3-fluoroalkyl-4,5-dihydro-1,2,4-triazole-5(1H)-thiones. Condensation of 4,4-disubstituted thiosemicarbazides with trifluoroacetic acid leads to formation of 2-amino-5-trifluoromethyl-1,3,4-thiadiazoles.

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