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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1704162Generated: October 31, 2026

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

https://huagongshe.com/reaction/1704162

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 the Preparation C1, affording 19 g. of product as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04125714
Source datasetuspto-grants-1978_11
ORD IDord-a4c653a86bf84b6ea5499c31a60464e3
Source noteuspto-grants-1978_11