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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1900657Generated: October 29, 2026

Sodium Carbonate → HCID 18796730, compound

https://huagongshe.com/reaction/1900657

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
ReactantBenzo-1,3-dioxole-5-methylamineHCID 75799—
ReactantEthyl 4,6-dichloroquinazoline-2-carboxylateHCID 18796671—
SolventIsopropanolHCID 3776—
ProductHCID 18796730HCID 1879673092.3%

Reaction Steps

2.72 g (0.0100 mol) of 2-ethoxycarbonyl-4,6-dichloroquinazoline, 1.75 g (0.0116 mol) of piperonylamine and 1.60 g (0.0151 mol) of sodium carbonate were mixed with 100 ml of isopropyl alcohol. The obtained mixture was heated under reflux for 24 hours and distilled under a reduced pressure to remove the solvent. The residue was purified by silica gel column chromatography and recrystallized from chloroform/n-hexane to give 3.56 g of the title compound as a colorless needle.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05576322
Source datasetuspto-grants-1996_11
ORD IDord-e77c6c51b7124eba81d03522ebb43f25
Source noteuspto-grants-1996_11