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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1635917Generated: October 31, 2026

Water → Methyl 3-phenyl-1,2,4-triazolo[3,4-a]isoquinoline-6-carboxylate

https://huagongshe.com/reaction/1635917

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBenzoylhydrazineHCID 11955—
ReactantMethyl 1-chloroisoquinoline-4-carboxylateHCID 3338790—
SolventDimethylformamideHCID 6228—
ProductMethyl 3-phenyl-1,2,4-triazolo[3,4-a]isoquinoline-6-carboxylateHCID 22136174—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of methyl 1-Chloroisoquinoline-4-carboxylate, prepared essentially according to procedures described in Example 1, part 4, (293 mg) and benzoic hydrazide (192 mg) in 8 ml of DMF is stirred at 100° C. overnight. The mixture is cooled and poured into water. The solid is then collected by filtration and dried to give the title compound as a solid (258 mg). LC-MS data for the title compound: HPLC: 2.34 min. MS (ES+) m/e 304 [M+H]+. (The HPLC retention time is obtained by the method of Example 1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06511987B1
Source datasetuspto-grants-2003_01
ORD IDord-6d5a8ae5d7724d95b550624f0b3cf43b
Source noteuspto-grants-2003_01