Kinetics and mechanism of bromine addition to derivatives of unsaturated aliphatic carboxylic acids in aqueous solution.

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概要

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• This paper deals with the kinetics of bromine addition to unsaturated compounds in presence of added bromide ions at 22, 30, 38, 46, and 54 °C. The substrates used were acrylamide (AAm), methyl acrylate (MA), ethyl acrylate (EA), butyl acrylate (BA), <I>t</I>-butyl acrylate (<I>t</I>BA), methacrylamide (MAAm), methyl methacrylate (MMA), ethyl methacrylate (EMA), methyl crotonate (MC), and ethyl crotonate (EC). The kinetics was followed potentiometrically. The activation parameters (Δ<I>H</I><SUP>\neweq</SUP>, Δ<I>S</I><SUP>\neweq</SUP>, and Δ<I>G</I><SUP>\neweq</SUP>) were calculated and compared. Estimation of product ratio of bromohydrin to dibromide showed the absence of any correlation of the product formation with reactivity of the substrates. The observed parameters are discussed in relation to the proposed reaction mechanisms.

• 公益社団法人 日本化学会の論文

著者

• Ganesan Ramachandran

  Department of Physical Chemistry, University of Madras

• Viswanathan Seshaiyer

  Department of Physical Chemistry, University of Madras

• Mohamed Farook

  Department of Physical Chemistry, University of Madras

関連論文

• Kinetics and mechanism of the addition of iodine monochloride to alkenes in acetic acid.
• Kinetics and mechanism of bromine addition to derivatives of unsaturated aliphatic carboxylic acids in aqueous solution.

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