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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 634399Generated: November 1, 2026

Methanesulfonyl chloride → 3-(1-Chloroethyl)-4-phenyl-1H-isochromen-1-one

https://huagongshe.com/reaction/634399

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanesulfonyl chlorideHCID 31297—
Reactant3-(1-Hydroxyethyl)-4-phenyl-1H-isochromen-1-oneHCID 118131164—
SolventDichloromethaneHCID 6344—
Product3-(1-Chloroethyl)-4-phenyl-1H-isochromen-1-oneHCID 11813145449.8%

Reaction Steps

3-(1-Hydroxyethyl)-4-phenyl-1H-isochromen-1-one (intermediate B1, 300 mg, 1.27 mmol), Methane sulfonyl chloride (516 mg, 4.51 mmol), TEA (0.62 mmol, 4.5 ml) were reacted in DCM (10 ml) at RT. Solvent was then removed under reduced pressure to give the title compound (180 mg). This was used in next step without any further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321776B2
Source datasetuspto-grants-2016_04
ORD IDord-b8b32a77efcd43ea8edd0c08b5a87a12
Source noteuspto-grants-2016_04