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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 645211Generated: October 29, 2026

Cesium carbonate → HCID 59263329, compound

https://huagongshe.com/reaction/645211

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant4-Fluorobenzyl bromideHCID 68021—
Reactantspiro[furo[2,3-f][1,3]benzodioxole-7,3'-indol]-2'(1'H)-oneHCID 53375495—
SolventMethyl Ethyl KetoneHCID 6569—
ProductHCID 59263329HCID 5926332950%

Reaction Steps

To a solution of spiro[furo[2,3-f][1,3]benzodioxole-7,3′-indol]-2′(1′H)-one (0.16 g, 0.57 mmol) in ethylmethylketone (5.00 mL) was added Cs2CO3 (0.40 g, 1.20 mmol). The reaction mixture was stirred at ambient temperature for 15 min followed by the addition of 4-fluorobenzyl bromide (0.20 g, 1.0 mmol). The reaction mixture was refluxed for 4 h. After the completion of the reaction, the mixture was filtered and the solvent was removed under reduced pressure. The residue was recrystallized from EtOAc/Hexane to yield the title compound (0.111 g) as a white solid in 50% yield: MS (ES+) m/z 390.3 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07700641B2
Source datasetuspto-grants-2010_04
ORD IDord-77e2c889431547918e2a5120bf793e71
Source noteuspto-grants-2010_04