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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 462682Generated: October 30, 2026

2-Bromobenzoic acid → HCID 20396986, compound

https://huagongshe.com/reaction/462682

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Bromobenzoic acidHCID 6940—
Reactant3,4-DimethoxytolueneHCID 68126—
SolventMethanesulfonic AcidHCID 6395—
ProductHCID 20396986HCID 20396986—

Reaction Conditions

Temperature70 °C

Reaction Steps

A solution of 20 g of bisphosphorus pentoxide in 200 ml of methanesulfonic acid is poured over 20.7 g (0.1 mol) of 2-bromobenzoic acid and 15.2 g (0.1 mol) of 1,2-dimethoxy-4-methylbenzene, and the mixture is heated, with stirring, for 30 minutes at 70° C. The mixture is then poured into ice-water and extracted with ether. After concentration by evaporation, the ether extracts yield (2-bromophenyl)-(3,4-dimethoxy-6-methylphenyl)-methanone as a brown product of honey-like consistency.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04517184
Source datasetuspto-grants-1985_05
ORD IDord-7de52376639241628b80d1cf60af582b
Source noteuspto-grants-1985_05