of a transition‐metal center to an olefin or alkyne can significantly modify its reactivity, which makes the selective coupling of different alkenes or alkynes to carboryne possible. An example of a three‐component [2+2+2] cycloaddition reaction of carboryne with unactivated alkene (see scheme, blue) and alkyne (red) mediated by zirconium and nickel complexes is described.
混合三(合一):过渡
金属中心与烯烃或
炔烃的络合可显着改变其反应活性,这使得不同烯烃或
炔烃与碳
硼烷的选择性偶联成为可能。举例说明了碳炔与
锆和
镍络合物介导的未活化烯烃(见方案,蓝色)和
炔烃(红色)的三组分[2 + 2 + 2]环加成反应的一个例子。