Carbon Tetrachloride → 1,5-Bis(chloromethyl)-2,4-di(propan-2-yl)benzene

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

55 ml (0.46 mol) of tin tetrachloride are added dropwise with cooling in an ice bath (exothermic reaction) to a solution of 230 ml (2.43 mol) of chloromethyl ethyl ether and 197 g (1.22 mol) of 1,3-diisopropylbenzene in 600 ml of carbon tetrachloride and the mixture is stirred at 0° C. for 1 h. After stirring overnight at +25° C., 142 g (1.5 mol) of chloromethyl ethyl ether and 74 ml (0.46 mol) of tin tetrachloride are again added dropwise at 0° C. and the mixture is stirred overnight at +25° C. The reaction mixture is added to ice/hydrochloric acid, and the organic phase is separated off, washed with water and dried using sodium sulphate. After concentrating, the residue is taken up with petroleum ether, filtered through 1 kg of silica gel (230-400 mesh) and distilled in a high vacuum.

Herkunft & Nachweise