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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 993270Generated: October 29, 2026

Water → HCID 22145721, compound

https://huagongshe.com/reaction/993270

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2-ChloroanilineHCID 7240—
Reactant3-Cyclopentyloxy-4-methoxybenzaldehydeHCID 2735893—
SolventTolueneHCID 1140—
ProductHCID 22145721HCID 22145721—

Reaction Steps

A solution of 3-cyclopentyloxy-4-methoxybenzaldehyde (5 g) and 2-chloroaniline (2.5 mL) in toluene (60 mL) is heated at reflux under a Dean and Stark water trap for 3 hours. After concentration, the residue is dissolved in methanol (60 mL) and the stirred solution is treated at 0° C. with sodium cyanoborohydride (2.1 g). The temperature is allowed to rise to room temperature, and the stirring is continued for 2 hours, before dilution with ethyl acetate (100 mL) and washing with saline (100 mL). The organic layer is dried and concentrated, to give a brown oil. This oil is subjected to flash chromatography on silica gel, eluting with a mixture of ethyl acetate and hexane (1:4 v/v), to give N-(2-chlorophenyl)-3-cyclopentyloxy-4-methoxybenzylamine (0.64 g), in the form of an oil. [Elemental analysis: C, 69.5; H, 6.8; N, 4.1; Cl, 10.6%; calculated: C, 68.8; H, 6.7; N, 3.2; Cl, 10.7%].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06472412B1
Source datasetuspto-grants-2002_10
ORD IDord-dd916c9292b446c29c417acb35165a06
Source noteuspto-grants-2002_10