正庚醇 、 4-异丙基苯甲酸 在
Candida antarctica lipase B immobilised in a macroporous DVB crosslinked polymer (Novozym 435) 作用下,
以
环己烷 为溶剂,
反应 24.0h,
以63%的产率得到heptyl 4-isopropylbenzoate
参考文献:
名称:
Immobilised Candida antarctica B as efficient catalyst for the synthesis of local anaesthetic intermediates
摘要:
We hereby present the development of new reaction conditions for the CALB catalysed esterification of substituted benzoic acids. Using cyclohexane as the reaction media a number of heptyl benzoates have been easily isolated in good to excellent yields (up to 100% at 80 degrees C, 20-24 h). Moreover, the catalytic system has been successfully applied to the synthesis of local anaesthetics intermediates also showing good productivity in recycling experiments. (C) 2013 Elsevier Ltd. All rights reserved.
We hereby present the development of new reaction conditions for the CALB catalysed esterification of substituted benzoic acids. Using cyclohexane as the reaction media a number of heptyl benzoates have been easily isolated in good to excellent yields (up to 100% at 80 degrees C, 20-24 h). Moreover, the catalytic system has been successfully applied to the synthesis of local anaesthetics intermediates also showing good productivity in recycling experiments. (C) 2013 Elsevier Ltd. All rights reserved.