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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 22332Generated: October 26, 2026

1-(3-Chloropropyl)-4-phenylpiperidine → 7-methoxy-4-(1-methylethyl)-6-[3-(4-phenyl-1-piperidinyl)propoxy]-2H-1-benzopyran-2-one

https://huagongshe.com/reaction/22332

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(3-Chloropropyl)-4-phenylpiperidineHCID 203689—
ReactantFumarateHCID 5460307—
Reactant6-hydroxy-7-methoxy-4-(1-methylethyl)-2H-1-benzopyran-2-oneHCID 19927654—
SolventAcetoneHCID 180—
Solventtert-Butyl methyl etherHCID 15413—
Product7-methoxy-4-(1-methylethyl)-6-[3-(4-phenyl-1-piperidinyl)propoxy]-2H-1-benzopyran-2-oneHCID 1992763885%

Reaction Steps

Method D (2.5 h at 85° C.); starting materials: 6-hydroxy-7-methoxy-4-(1-methylethyl)-2H-1-benzopyran-2-one (example 105) and 1-(3-chloropropyl)-4-phenyl-piperidine; yield 85%; fusion point 62°-65° C. (from TBME). Fumarate: method E; yield 65%; fusion point 155°-157° C. (from acetone, boiled out with TBME).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05428038
Source datasetuspto-grants-1995_06
ORD IDord-13dfe9d867b84ecfb63a521715149af8
Source noteuspto-grants-1995_06