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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1290564Generated: October 30, 2026

p-Toluenesulfonic acid → HCID 21218303, compound

https://huagongshe.com/reaction/1290564

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantTrimethyl orthoformateHCID 9005—
Reactant2,3-Dimethyl-5-nitroanilineHCID 820786—
ProductHCID 21218303HCID 21218303—

Reaction Steps

66.4 g of 2,3-dimethyl-5-nitroaniline, 0.4 l of trimethyl orthoformate and 1.6 g of para-toluenesulphonic acid are mixed and heated to reflux for 3 hours.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05752982
Source datasetuspto-grants-1998_05
ORD IDord-5e5488daa31b46fc86da33cef8091652
Source noteuspto-grants-1998_05