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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 229963Generated: October 29, 2026

Thionyl Chloride → 4-Acetoxy-3,5-dimethoxybenzoyl chloride

https://huagongshe.com/reaction/229963

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
ReactantAcetyl syringic acidHCID 225680—
Solvent1,2-DimethoxyethaneHCID 8071—
Product4-Acetoxy-3,5-dimethoxybenzoyl chlorideHCID 97307102.5%

Reaction Steps

4-Acetoxy-3,5-dimethoxy-benzoic acid (1.45 g) was heated with thionyl chloride (0.86 g) in 3 mL of dimethoxyethane. After 1.5 hours the mixture was stripped under vacuum leaving 1.60 g of 4-acetoxy-3,5-dimethoxy-benzoyl chloride as an oil. 1H NMR (CDCl3, 300 MHz) δ (ppm): 2.26 (s, 3H), 3.89 (s, 9H), 7.34 (s, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07563928B2
Source datasetuspto-grants-2009_07
ORD IDord-87431285d9b04b1a9d0c74b7d59d3d92
Source noteuspto-grants-2009_07