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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1198684Generated: October 25, 2026

Methanol → 5-n-Butyl-2-[2-chloro-5-(methoxycarbonyl)phenyl]-2,4-dihydro-3H-1,2,4-triazol-3-one

https://huagongshe.com/reaction/1198684

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantDichloromethaneHCID 6344—
ReactantMethyl 4-chloro-3-hydrazinylbenzoateHCID 292358—
Product5-n-Butyl-2-[2-chloro-5-(methoxycarbonyl)phenyl]-2,4-dihydro-3H-1,2,4-triazol-3-oneHCID 13572008237%

Reaction Steps

By the procedure of Example 3, Step C, the title compound was prepared from methyl 4-chloro-3-hydrazinobenzoate (from Step B) in 37% yield as an orange gum (TLC in 95:5 CH2Cl2 --MeOH), mass spectrum (FAB) m/e 310 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05281614
Source datasetuspto-grants-1994_01
ORD IDord-da3c2a1361b444c783657810b0278f41
Source noteuspto-grants-1994_01