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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2376794Generated: October 30, 2026

Lithium Hydroxide → Dcp-LA

https://huagongshe.com/reaction/2376794

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantAmmonium ChlorideHCID 25517—
Reactant1,4-DioxaneHCID 31275—
ReactantMethyl 8-[2-[(2-pentylcyclopropyl)methyl]cyclopropyl]octanoateHCID 534623—
SolventEthyl AcetateHCID 8857—
ProductDcp-LAHCID 990471885.7%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 8-(2-((2-pentylcyclopropan-1-yl)methyl)cyclopropyl)octanoic acid methyl ester (4.89 g), 1N aqueous solution (33.4 ml) of lithium hydroxide and dioxane (33 ml) was stirred at 60° C. overnight. The mixture was poured into a mixture of ethyl acetate (EA) and a saturated aqueous solution of ammonium chloride. The separated organic layer was washed with water and dried over magnesium sulfate. After filtration, the filtrate was concentrated in vacuo. The obtained residue was purified by chromatography on silica gel (eluted with 20% EA in n-hexane). The fractions including 8-(2-((2-pentylcyclopropan-1-yl)methyl)cyclopropyl)octanoic acid were collected and concentrated in vacuo to give 8-(2-((2-pentylcyclopropan-1-yl)methyl)cyclopropyl)octanoic acid (4.01 g) as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07468389B2
Source datasetuspto-grants-2008_12
ORD IDord-f9d91d64a8894ab38fe3be65100f46b0
Source noteuspto-grants-2008_12