Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 22336Generated: October 29, 2026

1-Phenylpiperazine → 7,8,9,10-tetrahydro-3-methoxy-2-[3-(4-phenyl-1-piperazinyl)propoxy]-6H-dibenzo[b,d]pyran-6-one

https://huagongshe.com/reaction/22336

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-PhenylpiperazineHCID 7096—
Reactanttert-Butyl methyl etherHCID 15413—
ReactantFumarateHCID 5460307—
Reactant7,8,9,10-tetrahydro-2-[3-(methanesulfonyloxy)propoxy]-3-methoxy-6H-dibenzo[b,d]pyran-6-oneHCID 19927709—
SolventAcetoneHCID 180—
SolventEthanolHCID 702—
SolventIsopropanolHCID 3776—
Product7,8,9,10-tetrahydro-3-methoxy-2-[3-(4-phenyl-1-piperazinyl)propoxy]-6H-dibenzo[b,d]pyran-6-oneHCID 1992763794%

Reaction Steps

Method B (24 h at 60° C.); starting materials: 7,8,9,10-tetrahydro-2-[3-(methanesulfonyloxy)propoxy]-3-methoxy-6H-dibenzo[b,d]pyran-6-one (example 80) and 1-phenylpiperazine; yield 94%; fusion point 104°-106° C. (from TBME and isopropanol). Fumarate: method E; yield 92%; fusion point 160°-161° C. (from ethanol and acetone).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05428038
Source datasetuspto-grants-1995_06
ORD IDord-06983b3b92bb4e458a75cae28a70b5ba
Source noteuspto-grants-1995_06