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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1884383Generated: November 3, 2026

Piperazine → HCID 12150200, compound

https://huagongshe.com/reaction/1884383

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantHCID 12150202HCID 12150202—
SolventEthanolHCID 702—
ProductHCID 12150200HCID 1215020062.9%

Reaction Steps

A suspension of 2-chloromethyl-6,7-methylenedioxy-4-(3,4-methylenedioxy-phenyl)quinazoline (96 mg, 0.3 mmol) in EtOH (9 mL) was treated with piperazine (860 mg, 10 mmol). The mixture was stirred at rt for 15 h, then it was poured into ice cold dilute NaHCO3 solution. On standing at rt for 72 h the title compound was crystallized out as colorless plates. It was collected by filtration, washed with water, and dried to give 74 mg of solid; mp 73-76° C. 1H NMR (CDCl3) 7.37 (d, J=8.4, 1H), 7.16-7.24 (m, 3H), 6.97 (d, J=8.4, 1H), 6.14 (s, 2H), 6.07 (s, 2H), 3.95 (s, 2H), 2.97 (bs, 4H), 2.65 (bs, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06765006B2
Source datasetuspto-grants-2004_07
ORD IDord-080d4daa4ee94932af8688ffcc161f4f
Source noteuspto-grants-2004_07