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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 973568Generated: October 29, 2026

O-Toluidine → 8-methoxy-2-N,4-N-bis(2-methylphenyl)quinazoline-2,4-diamine

https://huagongshe.com/reaction/973568

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-ToluidineHCID 7242—
ReactantHCID 10086136HCID 10086136—
SolventEthanolHCID 702—
Product8-methoxy-2-N,4-N-bis(2-methylphenyl)quinazoline-2,4-diamineHCID 10248595—

Reaction Steps

8-methoxy-4-(2-methylphenylamino)-2-chloroquinazoline (1.00 g, 0.0033 mol) was dissolved in ethanol (15 ml) with o-toluidine (1.06 g, 0.0099 mol) and heated in a sealed vessel at 150° for 5 hours. After cooling and removal of excess solvent in vacuo the solid was chromatographed (silica gel, chloroform). 8-Methoxy-2,4-bis(2-methylphenylamino)quinazoline was isolated as crystals (0.93 g, from ethanol/water, m.p. 185°-187°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05064833
Source datasetuspto-grants-1991_11
ORD IDord-843277ef42184f12b3d9ead81ccd94dd
Source noteuspto-grants-1991_11