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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 918264Generated: October 25, 2026

Diethylene Glycol → 4-[alpha-amino-alpha-amino-alpha-phenyl-o-tolyl]-5-ethyl-4H-1,2,4-triazole-3-carboxaldehyde

https://huagongshe.com/reaction/918264

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylene GlycolHCID 8117—
ReactantHydrazine, propyl-HCID 42007—
Reactant8-chloro-6-(o-chlorophenyl)-1-cyclopropyl-4H-s-triazolo[4,3-a][1,4] benzodiazepineHCID 86733715—
Product4-[alpha-amino-alpha-amino-alpha-phenyl-o-tolyl]-5-ethyl-4H-1,2,4-triazole-3-carboxaldehydeHCID 21521604—

Reaction Steps

In the manner given in Examples 1-7, above, 1ethyl-6-phenyl-4H-s-triazolo[ 4,3-a][1,4]benzodiazepine (III) in diethylene glycol is treated with propyl hydrazine to obtain both A and B 4-[α-amino-α-amino-α-phenyl-o-tolyl]-5-ethyl -4H-1,2,4-triazole-3-carboxaldehyde, propylhydrazone, which is separated by column chromatography into the two diastereomers A and B.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03970666
Source datasetuspto-grants-1976_07
ORD IDord-46d02198d7e544e88e3855af5082bcc9
Source noteuspto-grants-1976_07