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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1731089Generated: October 25, 2026

Formaldehyde → 8-chloro-1-(2-hydroxyethyl)-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine

https://huagongshe.com/reaction/1731089

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantAlprazolamHCID 2118—
Product8-chloro-1-(2-hydroxyethyl)-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepineHCID 12562508—

Reaction Steps

heating 8-chloro-6-phenyl-1-methyl-4H-s-triazolo-[4,3-a][1,4]benzodiazepine in an inert organic solvent with paraformaldehyde to 100°-140° C. to give 8-chloro-1-(2-hydroxyethyl)-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine; and

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03994941
Source datasetuspto-grants-1976_11
ORD IDord-9a878b20f7c04d5298059dc8e3243778
Source noteuspto-grants-1976_11