正庚醇 、 间硝基苯甲酸 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60%的产率得到heptyl 3-nitrobenzoate
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.