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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1042037Generated: November 1, 2026

Hydrochloric Acid → HCID 44180965, compound

https://huagongshe.com/reaction/1042037

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantButyl vinyl etherHCID 8108—
ReactantDiisopropylethylamineHCID 81531—
Reactant3-Bromo-5-(morpholin-4-yl)-7H-thieno[3,2-b]pyran-7-oneHCID 44181178—
CatalystCID 53485975HCID 53485975—
SolventDimethylformamideHCID 6228—
ProductHCID 44180965HCID 44180965—

Reaction Conditions

Temperature180 °C

Reaction Steps

A 2 mL conical microwave vial was charged with a magnetic stirring bar, 3-bromo-5-morpholino-7H-thieno[3,2-b]pyran-7-one (103) (100 mg, 316 gmol), dimethylformamide (0.5 mL), N,N-diisopropylethylamine (165 μL, 949 μmol), butyl vinyl ether (124 μL, 949 gmol), and dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium(II) dichloromethane adduct (10 mg, 12.6 μmol). The reaction mixture was sealed, and the reaction mixture was magnetically stirred and heated via microwave irradiation to 180° C. for 15 minutes. After cooling to room temperature, the reaction was charged with aqueous hydrochloric acid (1.0 M, 2 mL) and stirred at room temperature for 2 hours to give 3-acetyl-5-morpholino-7H-thieno[3,2-b]pyran-7-one (74).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08557807B2
Source datasetuspto-grants-2013_10
ORD IDord-19eb42c5ff284afea1c002af3ab49c71
Source noteuspto-grants-2013_10