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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1770188Generated: November 2, 2026

Ethanol → HCID 20095037, compound

https://huagongshe.com/reaction/1770188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium CarbonateHCID 10340—
Reactant5-Bromo-2-chloropyrimidineHCID 606665—
ReactantHCID 20095041HCID 20095041—
CatalystTetrakis(triphenylphosphine)palladiumHCID 11979704—
SolventBenzeneHCID 241—
ProductHCID 20095037HCID 2009503765%

Reaction Steps

1.0 g (4.3 mM) of 2-pentylindan-5-boronic acid, 0.42 g (2.16 mM) of 5-bromo-2-chloropyrimidine, 4 ml of ethanol, 6 ml of benzene, 6 ml of 2M-sodium carbonate aqueous solution and 0.18 g of tetrakis (triphenylphosphine)palladium (O) were mixed and heat-refluxed for 2 hours under stirring. After the reaction, the reaction mixture was poured into ice water to precipitate a crystal. The crystal was recovered by filtration under reduced pressure and purified by silica gel column chromatography (eluent: toluene) and recrystallized from a mixture solvent (toluene/methanol) to obtain 0.63 g (1.40 mM) of 2,5-bis(2-pentylindan-5-yl)pyrimidine (Yield: 65%). ##STR328##

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05385692
Source datasetuspto-grants-1995_01
ORD IDord-9b042e39cb024d04bbf6a4b15b7c461d
Source noteuspto-grants-1995_01