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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 420944Generated: October 30, 2026

2-Chloro-1,4-benzoquinone → 1-(4-tert-Butylphenyl)-6-chloro-2-ethoxycarbonylmethyl-5-hydroxyindole-3-carboxylic acid ethyl ester

https://huagongshe.com/reaction/420944

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloro-1,4-benzoquinoneHCID 69671—
Reactant3-(4-tert-Butylphenylamino)pent-2-enedioic acid diethyl esterHCID 66657741—
Product1-(4-tert-Butylphenyl)-6-chloro-2-ethoxycarbonylmethyl-5-hydroxyindole-3-carboxylic acid ethyl esterHCID 66657811—

Reaction Steps

The sub-title compound was prepared in accordance with step (b) Example 1 from 3-(4-tert-butylphenylamino)pent-2-enedioic acid diethyl ester (6.2 g, 18.6 mmol, see step (a) above) and 2-chloro-1,4-benzoquinone (3.1 g, 22 mmol). Yield 266 mg (3%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08097623B2
Source datasetuspto-grants-2012_01
ORD IDord-c2db75e89238476397aaff27ed6cf937
Source noteuspto-grants-2012_01