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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 558538Generated: October 30, 2026

Ethanolamine → HCID 28345299, compound

https://huagongshe.com/reaction/558538

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
ReactantSodium BicarbonateHCID 516892—
Reactant5-Bromothiophene-2-sulfonyl chlorideHCID 2733924—
SolventDichloromethaneHCID 6344—
ProductHCID 28345299HCID 2834529993%

Reaction Steps

A mixture of 5-bromo-thiophene-2-sulfonyl chloride (1.5 g, 4. mmol) and ethanolamine (0.72 mL, 12 mmol) in dichloromethane (8 mL)/sat. NaHCO3 solution (8 mL) was stirred at 20° C. for 28 h. The mixture was partitioned between AcOEt (50 mL) and H2O (150 mL). The organic layer was dried (Na2SO4) and evaporated to give the title compound (1.07 g, 93%) as a pale-yellow oil. MS (ISP) 284.0 [(M−H)−].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063048B2
Source datasetuspto-grants-2011_11
ORD IDord-f5b965ba302d412eaedc10b332804cd5
Source noteuspto-grants-2011_11