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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2075710Generated: October 26, 2026

Diisopropylethylamine → 3-([1,2,4]Triazolo[1,5-a]quinolin-7-ylsulfanyl)-propionic acid 2-ethyl-hexyl ester

https://huagongshe.com/reaction/2075710

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant2-Ethylhexyl 3-mercaptopropionateHCID 92640—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
Reactant7-Bromo-[1,2,4]triazolo[1,5-a]quinolineHCID 58257795—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Solvent1,4-DioxaneHCID 31275—
Product3-([1,2,4]Triazolo[1,5-a]quinolin-7-ylsulfanyl)-propionic acid 2-ethyl-hexyl esterHCID 67091107—

Reaction Conditions

Temperature110 °C

Reaction Steps

8b (120 mg, 0.48 mmol) and 3-mercaptopropionic acid 2-ethylhexyl ester (110 mg, 0.55 mmol) were dissolved in 1,4-dioxane (5 mL) and degassed for 10 minutes with N2. iPr2NEt (0.16 mL, 0.89 mmol) was added, followed by Pd2dba3 (10 mg, 0.01 mmol) and 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (12 mg, 0.02 mmol), and the mixture was degassed with N2 for an additional 10 minutes. The reaction was sealed and heated at 110° C. for 4 hours. The reaction was cooled to room temperature and purified by silica gel chromatography (25-100% EtOAc in hexanes) to give the desired product, 8e.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07919621B2
Source datasetuspto-grants-2011_04
ORD IDord-713909cf87d9402289b1cb6c95bcf713
Source noteuspto-grants-2011_04