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White Crystal

5-Chloro-1-indanone is the important intermediate of du pont company's new varieties of pesticides indoxacarb (popular name: indoxacarb), is also a kind of important medicine intermediate simultaneously.
5-Chloro-1-indanone is a 5-halo-1-indanone. It participates in the Irie′s synthesis of substituted pyridines. 5-Chloro-1-indanone has a stable triclinic crystal structure and has intermolecular forces of C-H...O, C-H...Π, CO...Cl and Π...Π types.
5-Chloro-1-indanone may be used as starting reagent for the preparation of 5-chloro-2-methoxycarbonyl-1-indanone. It may be used for the preparation of important biomedical compounds such as anticonvulsants, anticholinergics and diarylsulfonylureas, having potential activity against solid tumors.

3-chlorobenzaldehyde as raw material first reacts with propionic acid to prepare 3-chloro-phenylpropionic acid, which is then subjected to Friedel-Crafts acylation reaction to prepare 5-chloro-1-indanone. Organic solvents of formic acid diethylamine participate in the first step, and the reaction temperature is 20-150℃. An organic solvent of methylene chloride and a catalyst of zinc chloride participate in the second step, and the reaction temperature is -10 to 80 ℃.
Synthetic method of 5-chloro-1-indanone