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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1703959Generated: November 1, 2026

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

https://huagongshe.com/reaction/1703959

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 numberUS04125541
Source datasetuspto-grants-1978_11
ORD IDord-1ebf8ca093154a49b09296c70cedf282
Source noteuspto-grants-1978_11