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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 128027Generated: October 26, 2026

Dichloromethane → HCID 23471631, compound

https://huagongshe.com/reaction/128027

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantMethyl IsocyanateHCID 12228—
Reactant2-(Methylamino)-5-chlorobenzophenoneHCID 13925—
ProductHCID 23471631HCID 2347163147%

Reaction Steps

A solution of 12.3 g (0.05 mole) of 5-chloro-2-methylaminobenzophenone and 6 ml (0.1 mole) of methyl isocyanate in 50 ml of methylene chloride was refluxed for 3 days, and then cooled. The solid portion of the reaction mixture was collected on a filter and washed with methylene chloride to give 7.05 g (47%) of 6-chloro-3,4-dihydro-4-hydroxy-1,3-dimethyl-4-phenyl-2(1H)-quinazolinone as light yellow crystals; mp 174°-176°; 1H nmr (DMSO-d6) δ 2.67 ppm (s, 3H), 3.38 ppm (s, 3H), 6.8-7.7 ppm (m, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04258187
Source datasetuspto-grants-1981_03
ORD IDord-69c7614c92f24d848250faefb8fef5df
Source noteuspto-grants-1981_03