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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1281771Generated: October 25, 2026

Ethyl 2-(4-methyl-2-nitroanilino)benzo[b]thiophene-3-carboxylate → Ethyl 2-(2-amino-4-methylanilino)benzo[b]thiophene-3-carboxylate

https://huagongshe.com/reaction/1281771

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 2-(4-methyl-2-nitroanilino)benzo[b]thiophene-3-carboxylateHCID 18422341—
ReactantHCID 178418361HCID 178418361—
CatalystHCID 178418390HCID 178418390—
SolventEthyl AcetateHCID 8857—
ProductEthyl 2-(2-amino-4-methylanilino)benzo[b]thiophene-3-carboxylateHCID 1842221962.2%

Reaction Steps

In the same manner as in Starting Material Synthesis Example 19 and using ethyl 2-(4-methyl-2-nitroanilino)benzo[b]thiophene-3-carboxylate (6.5 g), ethyl acetate (140 ml), 10% palladium-carbon and hydrogen (500 mg, 60 atm kg/cm2), ethyl 2-(2-amino-4-methylanilino)benzo[b]thiophene-3-carboxylate (3.7 g) was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06455521B1
Source datasetuspto-grants-2002_09
ORD IDord-04a1c81b31914773af8efba41f784a6b
Source noteuspto-grants-2002_09