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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 542776Generated: October 31, 2026

2-Butenoic acid, 3-amino-, ethyl ester, (2Z)- → HCID 13826855, compound

https://huagongshe.com/reaction/542776

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Butenoic acid, 3-amino-, ethyl ester, (2Z)-HCID 643756—
Reactant5-Bromo-3-(dibromomethyl)-1-benzothiopheneHCID 20207236—
SolventEthanolHCID 702—
ProductHCID 13826855HCID 1382685528.2%

Reaction Steps

A mixture of 2.35 g of 5-bromo-3-(dibromomethyl)benzo[b]thiophene and 1.6 g of ethyl 3-aminocrotonate in 4 ml of ethanol was heated to reflux for 14 hours. The mixture was evaporated in vacuo and the residue was purified by chromatography over silica gel to provide 0.8 g of the desired title product, m.p. 68°-70° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04659717
Source datasetuspto-grants-1987_04
ORD IDord-4ea5379d476648cf9fe3e8e432ad3933
Source noteuspto-grants-1987_04