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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 390242Generated: November 4, 2026

p-Toluenesulfonic acid → 4-Chloro-2-(dimethoxymethyl)-1-nitrobenzene

https://huagongshe.com/reaction/390242

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantTrimethyl orthoformateHCID 9005—
ReactantSodium CarbonateHCID 10340—
Reactant5-Chloro-2-nitrobenzaldehydeHCID 81123—
SolventMethanolHCID 887—
Product4-Chloro-2-(dimethoxymethyl)-1-nitrobenzeneHCID 3570093—

Reaction Steps

A mixture of 5-chloro-2-nitro-benzaldehyde (0.0792 mol), trimethoxy-methane (0.126 mol) and PTSA (0.00079 mol) in methanol (80 mL) was refluxed until the 5-chloro-2-nitro-benzaldehyde had completely reacted. The mixture was cooled, Na2CO3 was added, and the reaction mixture was stirred for 5 min. The mixture was filtered and the filtrate was evaporated under reduced pressure to yield the title compound as a residue.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08383637B2
Source datasetuspto-grants-2013_02
ORD IDord-c09d9ce853a64bd1aeca3b6ad66cd3c9
Source noteuspto-grants-2013_02