Here we present an example of utilizing hydroxy groups for regioselectivity control in the addition reaction of alkynes—a highly efficient Pd-catalyzed syn-hydrocarboxylation of readily available 2-alkynylic alcohols with CO in the presence of alcohols with an unprecedented regioselectivity affording 3-hydroxy-2(E)-alkenoates. The role of the hydroxy group has been carefully studied. The synthetic
在这里,我们展示了一个在
炔烃的加成反应中利用羟基进行区域选择性控制的例子——在醇的存在下,一种高效的 Pd 催化的 2-炔醇与 CO 的顺式加氢羧化反应,具有前所未有的区域选择性,提供 3-羟基-2( E )-链烯酸酯。羟基的作用已被仔细研究过。产品的合成潜力也得到了证明。