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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 353161Generated: October 29, 2026

Sodium Chloride → HCID 11407184, compound

https://huagongshe.com/reaction/353161

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 numberUS06750218B2
Source datasetuspto-grants-2004_06
ORD IDord-77000630d14f4b6c9e178628dd5a4d28
Source noteuspto-grants-2004_06