N,N′-diaryl-trans-1,2-diaminocyclohexane ligands were prepared from 1,2-diaminocyclohexane and cyclohexanone derivatives via a heterogeneous palladium catalysis. In one step an alkylation followed by an aromatisation is performed under air or in the presence of an hydrogen trap. The interest of the synthesized ligands were evaluated in the reduction of aromatic ketones. The alcohols were efficiently and selectively obtained with an iridium complex and a mixture of formic acid and sodium formate.

中文翻译：

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新获得N，N'-二芳基-反式-1,2-二氨基环己烷配体的方法。一种便宜且容易的制备用于不对称转移氢化的配体的方法

由1,2-二氨基环己烷和环己酮衍生物通过非均相钯催化制备N，N'-二芳基-反式-1,2-二氨基环己烷配体。在一个步骤中，在空气中或在氢阱存在下进行烷基化，然后进行芳构化。在减少芳族酮的过程中评估了合成配体的兴趣。用铱络合物以及甲酸和甲酸钠的混合物有效和选择性地获得了醇。