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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 22334Generated: October 28, 2026

1-Phenylpiperazine → 7-methoxy-4-phenyl-6-[3-(4-phenyl-1-piperazinyl)propoxy]-2H-1-benzopyran-2-one

https://huagongshe.com/reaction/22334

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-PhenylpiperazineHCID 7096—
Reactanttert-Butyl methyl etherHCID 15413—
ReactantFumarateHCID 5460307—
Reactant6-[3-(methanesulfonyloxy)propoxy]-7-methoxy-4-phenyl-2H-1-benzopyran-2-oneHCID 19927731—
SolventAcetoneHCID 180—
SolventDiethyl EtherHCID 3283—
SolventIsopropanolHCID 3776—
Product7-methoxy-4-phenyl-6-[3-(4-phenyl-1-piperazinyl)propoxy]-2H-1-benzopyran-2-oneHCID 1992766086%

Reaction Steps

Method B (60 h at 60° C.); starting materials: 6-[3-(methanesulfonyloxy)propoxy]-7-methoxy-4-phenyl-2H-1-benzopyran-2-one (example 78) and 1-phenylpiperazine; yield 86%; fusion point 139°-141° C. (from TBME and isopropanol). Fumarate: method E; yield 93%; fusion point 145°-147° C. (from acetone and diethylether).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05428038
Source datasetuspto-grants-1995_06
ORD IDord-a08790196abb44409d3a618f7872e071
Source noteuspto-grants-1995_06