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(4,5-DIPHENYL-4H-[1,2,4]TRIAZOL-3-YLSULFANYL)-ACETIC ACID HYDRAZIDE synthesis

7synthesis methods
-

Yield:49656-91-9 97%

Reaction Conditions:

with hydrazine hydrate in ethanol;water at 20 - 60; for 10 h;

Steps:

Compounds 4a-4i (general procedure)

General procedure: Hydrazinehydrate, 15 mmol (85% solution), was added to a mixtureof 10 mmol of ester 2a-2i and 20 mL of ethanol,and the mixture was stirred for 2 h at room temperatureand for 8 h at 50-60°C. The solvent was removed, andthe crystalline residue was washed with water, dried,and recrystallized.

References:

Samvelyan;Ghochikyan;Grigoryan;Tamazyan;Aivazyan [Russian Journal of Organic Chemistry,2017,vol. 53,# 6,p. 935 - 940][Zh. Org. Khim.,2017,vol. 53,# 6,p. 919 - 924,6]