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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1809820Generated: October 30, 2026

5-Bromo-2-methylbenzaldehyde → 4-Bromo-2-(4-methoxy-but-1-enyl)-1-methyl-benzene

https://huagongshe.com/reaction/1809820

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-2-methylbenzaldehydeHCID 10420289—
ReactantAcetonitrile--water (1/1)HCID 18373917—
Reactant(3-Methoxypropyl)triphenylphosphonium bromideHCID 21458797—
SolventAcetonitrileHCID 6342—
Product4-Bromo-2-(4-methoxy-but-1-enyl)-1-methyl-benzeneHCID 67542746—

Reaction Steps

The title compound is prepared analogously as described for the title B compound in Example 45 using (3-methoxy-propyl)-triphenyl-phosphonium bromide and 5-bromo-2-methyl-benzaldehyde (prepared in Example 48; containing 20% of 3-bromo-2-methyl-benzaldehyde): Rt (HPLC, Nucleosil C18, 10:90-100:0 CH3CN/H2O+0.1% TFA within 5 min, then 100% CH3CN+0.1% TFA): 6.60 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08362040B2
Source datasetuspto-grants-2013_01
ORD IDord-e95f9b3acf00491c96d0f61f6b94fe4e
Source noteuspto-grants-2013_01