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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 596353Generated: October 25, 2026

2-Hydroxyacetohydrazide → 8-nitro-1-(hydroxymethyl)-6-(o-fluorophenyl)-4H-s-triazolo[4,3-a][1,4]benzodiazepine

https://huagongshe.com/reaction/596353

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-HydroxyacetohydrazideHCID 350536—
Reactant5-(2-fluorophenyl)-7-nitro-3H-1,4-benzodiazepine-2(1H)-thioneHCID 12371434—
Solvent1-ButanolHCID 263—
Product8-nitro-1-(hydroxymethyl)-6-(o-fluorophenyl)-4H-s-triazolo[4,3-a][1,4]benzodiazepineHCID 21450833—

Reaction Steps

In the manner given in Preparation 1, a solution of 1,3-dihydro-7-nitro-5-(o-fluorophenyl)-2H-1,4-benzodiazepine-2-thione in n-butyl alcohol is heated to reflux with hydroxyacetic acid hydrazide to give 8-nitro-1-(hydroxymethyl)-6-(o-fluorophenyl)-4H-s-triazolo[4,3-a][1,4]benzodiazepine. Preparation 4 8-(Trifluoromethyl)-1-(hydroxymethyl)-6-(o-chlorophenyl)-4H-s-triazolo[4,3-a][1,4]benzodiazepine

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04010177
Source datasetuspto-grants-1977_03
ORD IDord-713044aba8ad421e9e09ffbb5fc874dd
Source noteuspto-grants-1977_03