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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1819749Generated: October 30, 2026

Methanol → HCID 68821594, compound

https://huagongshe.com/reaction/1819749

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant2-MethylbenzaldehydeHCID 10722—
Reactant4-HydrazinoquinazolineHCID 63343—
ProductHCID 68821594HCID 6882159487%

Reaction Steps

A solution of quinazolin-4-yl-hydrazine (Gewald et al., J. Prakt. Chem./Chem.-Ztg. 1996, 338, 206-213) (265 mg, 1.65 mmol) was refluxed with tolualdehyde (400 μl, 3.39 mmol) in methanol for 1 hour. The solvent was evaporated and the resulting solid was triturated with water and filtered to give a yellow powder in 87% yield: mp 211-214° C.; 1H-NMR (DMSO-d6) 2.37 (s, 3H), 7.29 (d, 2H), 7.47 (dt, 2H), 7.67 (t, 1H), 7.88 (d, 3H), 8.20 (m, 1H), 8.51 (s, 1H), 11.65 (s, 1H); HR-MS (EI) m/z 262.1223 (M+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07601846B2
Source datasetuspto-grants-2009_10
ORD IDord-958c82f357b247a4832b75df626a495f
Source noteuspto-grants-2009_10