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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1198114Generated: November 2, 2026

O-Toluidine → 2-(2-Methylphenylamino)-4-(N-methylphenylamino)thieno[2,3-d]pyrimidine hydrochloride

https://huagongshe.com/reaction/1198114

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-ToluidineHCID 7242—
Reactant2-Chloro-4-(N-methylphenylamino)thieno[2,3-d]pyrimidineHCID 10356057—
SolventMethanolHCID 887—
Product2-(2-Methylphenylamino)-4-(N-methylphenylamino)thieno[2,3-d]pyrimidine hydrochlorideHCID 67850401—

Reaction Steps

2-Chloro-4-(N-methylphenylamino)thieno[2,3-d]pyrimidine (1.5 g, 0.0054 mol) and o-toluidine (1.3 g, 0.012 mol) were heated at 160° in an oil bath for 2 hours. The addition of methanol gave a solid which was collected by filtration and dried. Recrystallization from ethanolic HCl gave the title compound as a partial hydrochloride salt, (1.13 g), m.p. 210°-212°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05280026
Source datasetuspto-grants-1994_01
ORD IDord-ab6f9e43779641068b4d43b162cb37db
Source noteuspto-grants-1994_01