Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1112296Generated: October 31, 2026

Bromine → HCID 20286704, compound

https://huagongshe.com/reaction/1112296

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactantethyl 5-chloro-3-phenyl-1H-indole-2-carboxylateHCID 737953—
ReactantSodium BisulfiteHCID 23665763—
SolventAcetic AcidHCID 176—
ProductHCID 20286704HCID 20286704—

Reaction Steps

Add 11 ml (33 g.) of bromine to a mixture of ethyl 5-chloro-3-phenylindole-2-carboxylate (30 g.) in 100 ml of acetic acid at 10°-20°. Stir overnight and then add a solution of sodium bisulfite. Filter and wash the precipitate with water. Stir the solid with methanol and filter to yield the title compound. Recrystallization from methanol yields the analytical sample; m.p. 205°-206° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04122034
Source datasetuspto-grants-1978_10
ORD IDord-06a46b76273b43cea948b09ea561963e
Source noteuspto-grants-1978_10