Abstract

Abstract (1) The relation between the extent of addition of bromine to cinnamic acid in carbon tetrachloride and the amount of oxygen present has been shown. (2) It has been indicated that hydrogen bromide is indifferent to the reaction of bromine with cinnamic acid in carbon tetrachloride either in presence or in absence of oxygen. (3) The accelerating effect of benzoyl peroxide on the addition of bromine to cinnamic acid in carbon tetrachloride has been demonstrated. (4) In all cases, namely in vacuum and in the presence of any of oxygen, benzoyl peroxide, and hydrogen bromide, the products separating out in crystals were cinnamic acid dibromide melting at 198°. (5) All the results mentioned above were obtained from the additions in the dark at room temperature.

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