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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 453931Generated: October 30, 2026

Hydrochloric Acid → 1-[2-(Cyclopentyloxy)-3-methoxyphenyl]methanamine hydrochloride

https://huagongshe.com/reaction/453931

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 86652761HCID 86652761—
ReactantHCID 178418361HCID 178418361—
CatalystNickelHCID 935—
SolventMethanolHCID 887—
SolventEthyl AcetateHCID 8857—
Product1-[2-(Cyclopentyloxy)-3-methoxyphenyl]methanamine hydrochlorideHCID 66916774—

Reaction Steps

To a stirred solution of 2-(cyclopentyloxy)-3-methoxybenzaldehyde oxime (3 g, 12.448 mmol) in methanol (10 ml) was added catalytic amount of Raney nickel (0.30 g) at room temperature. The reaction mixture was stirred for 3 h at 50 psi hydrogen pressure in Paar hydrogenation apparatus. The reaction mixture was filtered through celite bed, dried (Na2SO4), filtered and concentrated to get the crude product. The crude product was then dissolved in ethyl acetate, to which hydrochloric acid in ethyl acetate was added dropwise at 10° C. and stirred for 20 min and then filtered and dried to yield 2.86 g of the product, 1H NMR (300 MHz, DMSO-d6) δ 1.57-1.63 (m, 4H), 1.65-1.72 (m, 4H), 3.81 (s, 3H), 3.94 (s, 2H), 4.90 (br s, 1H), 7.08 (s, 3H), 8.39 (br s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08492568B2
Source datasetuspto-grants-2013_07
ORD IDord-02eb9c8cf03e4ff49a9491a2e67e7148
Source noteuspto-grants-2013_07