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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 49895Generated: October 29, 2026

Cyclopentylamine → HCID 22741967, compound

https://huagongshe.com/reaction/49895

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclopentylamineHCID 2906—
ReactantSodium BicarbonateHCID 516892—
Reactant1-Chloro-4-(4-pyridinylmethyl)phthalazineHCID 1944609—
SolventDichloromethaneHCID 6344—
ProductHCID 22741967HCID 22741967—

Reaction Conditions

Temperature115 °C

Reaction Steps

A mixture of 0.3 g (1.173 mmol) 1-chloro-4-(4-pyridylmethyl)phthalazine and 0.4 g (4.692 mmol) cyclopentylamine is stirred for 6 h at 115° C. The cooled reaction mixture is then distributed between dichloromethane and saturated aqueous sodium hydrogencarbonate solution. The organic solution washed with brine and dried over anhydrous sodium sulfate is evaporated and the residue purified on silica gel by flash chromatography using acetate/methanol (9:1). Title compound is obtained after crystallization of the product-containing fractions from acetonitrile/water and drying under HV (8 h, 100° C.); m.p. 163-165° C.; ESI-MS: (M+H)+=305.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06710047B2
Source datasetuspto-grants-2004_03
ORD IDord-341da6b698e7474fbf81c9387c641f13
Source noteuspto-grants-2004_03