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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1018166Generated: October 29, 2026

1-Chloro-3,7-dimethyl-octa-2,6-diene → 4-Hydroxy-undecanoic Acid 3,7-dimethyl-octa-2,6-dienyl Ester

https://huagongshe.com/reaction/1018166

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Chloro-3,7-dimethyl-octa-2,6-dieneHCID 99106—
ReactantSodium 4-hydroxyundecanoateHCID 23710311—
CatalystTetrabutylammonium BromideHCID 74236—
SolventDimethylformamideHCID 6228—
Product4-Hydroxy-undecanoic Acid 3,7-dimethyl-octa-2,6-dienyl EsterHCID 5426947931.8%

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 155 g 1-chloro-3,7-dimethyl-octa-2,6-diene, 202 g 4-hydroxy-undecanoic acid sodium salt and 5 g tetrabutylammoniumbromide in 800 ml of dimethylformamide was heated to 50° C. After stirring for 24 hours, the mixture was cooled to room temperature and filtered through Celite. The filtrate was diluted with ether, washed with water, 2N HCl, saturated sodium bicarbonate and brine. The organic phase was dried and evaporated to dryness. The resulting yellow oil was purified by wipe film distillation to yield 96.6 g of a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06479682B1
Source datasetuspto-grants-2002_11
ORD IDord-64d69b1e31f74983ad47e105eead06a3
Source noteuspto-grants-2002_11