O-Chlorobenzyl bromide

Ninety-five grams (0.75 mole) of o-chlorotoluene is stirred, heated to reflux, and illuminated with a 150-watt light while 128 g. (0.80 mole) of bromine is added over a 2-hour period. The mixture is heated and illuminated for 3 hours after completion of the addition and then distilled imder vacuum. There is obtained 152 g. (98%) of o-chlorobenzyl bromide boiling at 103-107°/12 mm. 

Fair yields of halomalonic esters are obtained by alkylation of malonic esters with ethylene bromide, " o-chlorobenzyl halides, and 1-bromo-4-chl orobutan e. 

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