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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 993191Generated: October 28, 2026

Sodium Chloride → HCID 11407184, compound

https://huagongshe.com/reaction/993191

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ChlorideHCID 5234—
ReactantTriethylamineHCID 8471—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant2,4-Dichloro-6,7-dimethoxyquinazolineHCID 520327—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 11407184HCID 1140718498%

Reaction Steps

To a solution of 4.62 g (17.8 mmol) of commercially available 2,4-dichloro-6,7-dimethoxyquinazoline in 50 ml of dimethylformamide were added 12.4 ml (89.1 mmol) of triethylamine and 3.65 g (19.6 mmol) of N-tert-butoxycarbonylpiperazine, followed by overnight stirring in an atmosphere of argon at room temperature. The reaction mixture was poured into water, and sodium chloride was added thereto. The precipitated crystals were collected by filtration, washed with water, and dried to give 7.15 g (98%) of the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06472391B2
Source datasetuspto-grants-2002_10
ORD IDord-87b447d40b2e47ea98b4fa03e0b8f65e
Source noteuspto-grants-2002_10