1,2-Dichloroethane → HCID 22119924, compound

Participants

Reaction Steps

A mixture of 3-[3-(chloromethyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione (1.00 g, 0.00266 mol), azo-bis-isobutyronitrile (0.100 g), N-bromosuccinimide (0.712 g, 0.00400 mol) and 1,2-dichloroethane is stirred one hour at reflux. Additional azo-bis-isobutyronitrile (0.0500 g) and N-bromosuccinimide (0.100 g) are added and the mixture is stirred two hours at reflux, cooled to room temperature, diluted with methylene chloride, washed with water, dried over anhydrous magnesium sulfate, and concentrated in vacuo to an orange gum. Chromatography of the gum on silica gel with methylene chloride:ether gives the title compound as a white foam (0.950 g, 80.2%, mp 93-96° C.) which is identified by NMR spectral analysis.

Provenance & Evidence