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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 479636Generated: October 27, 2026

Ethanol → Ethyl 7-(3-hydroxypropoxy)-2-ethylchromane-2-carboxylate

https://huagongshe.com/reaction/479636

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantEthyl 7-(3-benzyloxypropoxy)-2-ethylchromane-2-carboxylateHCID 22737356—
CatalystPalladiumHCID 23938—
SolventWaterHCID 962—
ProductEthyl 7-(3-hydroxypropoxy)-2-ethylchromane-2-carboxylateHCID 2273736998.3%

Reaction Steps

To an 80 ml ethanol solution of ethyl 7-(3-benzyloxypropoxy)-2-ethylchromane-2-carboxylate (3.76 g, 9.5 mmol) was added water 4 ml and 10% Pd/C 300 mg. This solution was placed in a Parr shaker and was shaken under hydrogen atmosphere (50 psi) overnight. The catalyst was removed by filtration through a pad of celite. The filtrate was concentrated and chromatographed on silica gel. Elution with 30% AcOEt/hexanes gave the title compound 2.88 g as colorless syrup (quant.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06645997B2
Source datasetuspto-grants-2003_11
ORD IDord-531d8e49132d48a7b2fb86a614eb711a
Source noteuspto-grants-2003_11