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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1042041Generated: October 31, 2026

Cesium carbonate → HCID 44180968, compound

https://huagongshe.com/reaction/1042041

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantBis(pinacolato)diboraneHCID 2733548—
ReactantHCID 23734890HCID 23734890—
Reactant3-Bromo-5-(morpholin-4-yl)-7H-thieno[3,2-b]pyran-7-oneHCID 44181178—
CatalystCID 53485975HCID 53485975—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 44180968HCID 44180968—

Reaction Conditions

Temperature140 °C

Reaction Steps

A 2 mL microwave vial was charged with a magnetic stirring bar, 2-morpholinoethyl 4-iodobenzoate (90 mg, 249 μmol), 3-bromo-5-morpholino-7H-thieno[3,2-b]pyran-7-one (103) (79 mg, 249 μmol), bis(pinacolato)diboron (70 mg, 274 gmol), cesium carbonate (325 mg, 997 dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium(II) dichloromethane adduct (6 mg, 7 μmol), and 1,2-dimethoxyethane (1 mL). The reaction mixture was sealed, and the reaction mixture was magnetically stirred and heated under microwave irradiation to 140° C. for 15 minutes to give 2-morpholinoethyl 4-(5-morpholino-7-oxo-7H-thieno[3,2-b]pyran-3-yl)benzoate (77).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08557807B2
Source datasetuspto-grants-2013_10
ORD IDord-59e1b641745047f5ad18fa76b763278d
Source noteuspto-grants-2013_10