90433-97-9

Basic information

• Product Name: 1,3-Dithiolane, 2-(1,3-dithiolan-2-ylidenemethyl)-2-methyl-
• CAS NO: 90433-97-9
• Molecular Formula: C8H12S4
• Molecular Weight: 236.447
• Mol File: 90433-97-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,3-Dithiolane, 2-(1,3-dithiolan-2-ylidenemethyl)-2-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-Dithiolane, 2-(1,3-dithiolan-2-ylidenemethyl)-2-methyl-(90433-97-9)
• EPA Substance Registry System: 1,3-Dithiolane, 2-(1,3-dithiolan-2-ylidenemethyl)-2-methyl-(90433-97-9)

Safety Data

• Hazardous Substances Data: 90433-97-9(Hazardous Substances Data)

Upstream product

• 6123-63-3 4-acetyl-5-methyl-1-phenylpyrazole 
• 107-21-1 ethylene glycol 

Relevant articles and documents

Deacylation of Pyrrole and other Aromatic Ketones

Ethyl 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylate (1a) reacts rapidly with ethylene glycol in refluxing benzene with p-toluenesulfonic acid or perchloric acid as a catalyst to give ethyl 3,5-dimethyl-1H-pyrrole-2-carboxylate (3) in high yield (96 percent).Various 2- and 3-acylpyrroles can be efficiently deacylated by using this procedure.Other ketones which undergo deacylation include phenyl(2-phenylindol-3-yl)methanone (19), 1-(5-methyl-1-phenylpyrazol-4-yl)ethanone (20), and 2,4-dimethoxybenzophenone.Certain pyrrole ketones where the acyl group is flanked by two ring methyl groups are also cleaved under acidic conditions by using ethanedithiol.