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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1869075Generated: October 26, 2026

3-Ethynylaniline hydrochloride → (6-Carbomethoxyquinazolin-4-yl)-(3-ethynylphenyl)-amine Hydrochloride

https://huagongshe.com/reaction/1869075

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Ethynylaniline hydrochlorideHCID 18925023—
ReactantMethyl 4-chloroquinazoline-6-carboxylateHCID 18925080—
SolventIsopropanolHCID 3776—
Solventtert-ButanolHCID 6386—
Product(6-Carbomethoxyquinazolin-4-yl)-(3-ethynylphenyl)-amine HydrochlorideHCID 18925071—

Reaction Steps

4-Chloro-6-carbomethoxyquinazoline (100 mg, 0.450 mmol) and 3-ethynylaniline hydrochloride (53.4 mg, 0.456 mmol) were refluxed in 2 mL of tert-butyl alcohol for 2 hours, cooled, diluted with 2 mL of isopropyl alcohol and filtered to afford solid title product which was washed with 10 mL of diethyl ether and dried, in vacuo, at 70° C., 122 mg (80%); mp 232°-233° C. (dec).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE041065E1
Source datasetuspto-grants-2009_12
ORD IDord-e3575eab7f0144ebb14c6edee87de436
Source noteuspto-grants-2009_12