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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2223490Generated: October 30, 2026

Diisopropylethylamine → 1-(2-Thiophen-2-yl-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl)-ethanone

https://huagongshe.com/reaction/2223490

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant2-ThiophenecarbothioamideHCID 737237—
Reactant1-Acetyl-3-bromopiperidin-4-one hydrobromideHCID 19761176—
SolventAcetonitrileHCID 6342—
Product1-(2-Thiophen-2-yl-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl)-ethanoneHCID 68533207—

Reaction Conditions

Temperature50 °C

Reaction Steps

2.8 mmol of thiophene-2-thiocarboxamide was dissolved in 10 ml acetonitrile. 5.6 mmol of N-ethyl-diisopropylamine was added, followed by 3.4 mmol 1-acetyl-3-bromo-piperidin-4-one hydrobromide (prepared according to patent U.S. Pat No. 4,122,083). The reaction mixture was heated to 50° C. for 4 hours, cooled and concentrated. Chromatography of the residue (SiO2; ethyl acetate) yields the title compound as a yellowish gum. MS (m/e): 265.0 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07375226B2
Source datasetuspto-grants-2008_05
ORD IDord-36d31c6ba1bd421e8061582183de1a09
Source noteuspto-grants-2008_05