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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1734619Generated: October 26, 2026

2-Amino-6-methylbenzonitrile → Quinazoline, 2,4-diamino-5-methyl-(7CI,8CI)

https://huagongshe.com/reaction/1734619

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-6-methylbenzonitrileHCID 279973—
ReactantChloroformamidinium chlorideHCID 3084509—
SolventDiglymeHCID 8150—
ProductQuinazoline, 2,4-diamino-5-methyl-(7CI,8CI)HCID 19806286.9%

Reaction Steps

This compound was prepared in a manner analogous to that of Step E of Example 1, using 10.0 grams (0.076 mole) of 2-amino-6-methylbenzonitrile (prepared as in Example 1, Step B), and 10.0 grams (0.087 mole) of chloroformamidine hydrochloride in 40 mL of 2-methoxyethyl ether, yielding 11.5 grams of 2,4-diamino-5-methylquinazoline. The NMR spectrum was consistent with the proposed structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05534518
Source datasetuspto-grants-1996_07
ORD IDord-2b2a890cd01b4ee9ac25ab096046fc03
Source noteuspto-grants-1996_07