With the help of a carboxylic acid directing group, Pd-catalyzed regioselective synthesis of B(4,5)- or B(4)-substituted o-carboranes containing α,β-unsaturated carbonyls has been reported. The –COOH, removed during the course of the reaction, is responsible for controlling the regioselectivity. The desired products could be obtained in moderate to good yields.

中文翻译：

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钯催化区域选择性合成含有α，β-不饱和羰基的B（4,5）-或B（4）取代的邻碳素。

已经报道了借助于羧酸引导基团，Pd催化的含有α，β-不饱和羰基的B（4，5）-或B（4）-取代的邻-碳硼烷的区域选择性合成。在反应过程中除去的–COOH负责控制区域选择性。所需产物可以以中等至良好的产率获得。