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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 555259Generated: October 29, 2026

Trimethylsilyldiazomethane → 6-Chloro-2-(3-methyl-3,4-dihydro-2H-pyrazol-3-vi)-3H-quinazolin-4-one

https://huagongshe.com/reaction/555259

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethylsilyldiazomethaneHCID 167693—
Reactant6-Chloro-2-isopropenyl-3H-quinazolin-4-oneHCID 135814501—
SolventTetrahydrofuranHCID 8028—
Product6-Chloro-2-(3-methyl-3,4-dihydro-2H-pyrazol-3-vi)-3H-quinazolin-4-oneHCID 135814508—

Reaction Steps

6-Chloro-2-isopropenyl-3H-quinazolin-4-one (1 mmoL) in THF (5 mL) was treated with TMSCHN2 (1.0 N, 3.0 mmoL) at 50° C. for 4 h. The solvent was removed and the residue was purified by silica gel column chromatography to yield the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08053441B2
Source datasetuspto-grants-2011_11
ORD IDord-67f79bc1ed954cf3a6db1f118fdec4d6
Source noteuspto-grants-2011_11