Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1680744Generated: October 29, 2026

Phosphorus tribromide → 3-Methyl-6-(3,4-methylenedioxyphenyl)-3-hexenyl bromide

https://huagongshe.com/reaction/1680744

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
ReactantLithium BromideHCID 82050—
Reactant2-(3,4-Methylenedioxyphenyl)ethyl 1-methycyclopropyl carbinolHCID 23455738—
CatalystZinc bromideHCID 10421208—
Product3-Methyl-6-(3,4-methylenedioxyphenyl)-3-hexenyl bromideHCID 54508681—

Reaction Steps

3-Methyl-6-(3,4-methylenedioxyphenyl)-3-hexenyl bromide [V; Ar is 3,4-methylenedioxyphenyl, R is CH3 ] was prepared from 17.6 g. of 2-(3,4-methylenedioxyphenyl)ethyl 1-methylcyclopropyl carbinol (Preparation B3), 20.3 g. of phosphorus tribromide, 18.5 g. of lithium bromide and 21 g. of zinc bromide according to the procedure given above in Preparation C1, affording 19 g. of product as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04275201
Source datasetuspto-grants-1981_06
ORD IDord-1872af1d3a424e6fad80bc64bd9e2014
Source noteuspto-grants-1981_06