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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1249745Generated: November 2, 2026

Benzenamine, 3-ethynyl- → N-(3-Ethynylphenyl)-2H-[1,3]dioxolo[4,5-g]quinazolin-8-amine

https://huagongshe.com/reaction/1249745

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenamine, 3-ethynyl-HCID 104682—
Reactant8-Chloro-[1,3]dioxolo[4,5-g]quinazolineHCID 14935367—
SolventIsopropanolHCID 3776—
ProductN-(3-Ethynylphenyl)-2H-[1,3]dioxolo[4,5-g]quinazolin-8-amineHCID 1554923488.4%

Reaction Steps

A mixture of 8-chloro-[1,3]dioxolo[4,5-g]quinazoline (0.200 g, 1.04 mmol) and 3-ethynylaniline (0.127 g, 1.09 mmol) in 5 mL isopropanol was heated to reflux overnight, then cooled to ambient temperature. Precipitate was collected and washed to give [1,3]dioxolo[4,5-g]quinazolin-8-yl-(3-ethynyl-phenyl)-amine (0.266 g, 78%): mp greater than 350° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06335344B1
Source datasetuspto-grants-2002_01
ORD IDord-9ffb0180af664b7a9fc7bf646cd94d8f
Source noteuspto-grants-2002_01