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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2305297Generated: November 4, 2026

Water → HCID 18432350, compound

https://huagongshe.com/reaction/2305297

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPyridineHCID 1049—
ReactantBenzoyl chlorideHCID 7412—
ReactantHCID 18432348HCID 18432348—
SolventDichloromethaneHCID 6344—
ProductHCID 18432350HCID 18432350—

Reaction Steps

0.8 g (2.2 mmol) of 2-(4,4,8-trimethyl-1,1-dioxothiochroman-7-yl)carbonyl-1,3-cyclohexanedione was dissolved in 10 ml of methylene chloride, and 0.17 g (2.2 mmol) of pyridine and 0.31 g (2.2 mmol) of benzoyl chloride was added. The mixture was stirred at room temperature for 2 hours, water was added, and the organic phase was separated off, extracted with 2 N hydrochloric acid and dried. The solvent was subsequently distilled off and the residue was chromatographed over silica gel.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06440899B1
Source datasetuspto-grants-2002_08
ORD IDord-a94b30cc4c1a4619be13b98e8ec56be7
Source noteuspto-grants-2002_08