Mutual elimination of electrofugal (M) and nucleofugal (X) leaving groups from pairs of reacting carbenoids results in the generation of a C−C double bond. This eliminative coupling process is inherently regio- and stereospecific and offers a programmable synthesis of olefins. Homo- and cross-coupling variants are reviewed and prospects for further development are highlighted.

中文翻译：

---

类胡萝卜素的消除二聚和消除交叉偶联形成烯烃的立体化学研究。

从成对反应的类胡萝卜素相互消除电真菌（M）和核真菌（X）留下的基团会导致生成CC双键。该消除性偶联过程固有地具有区域特异性和立体特异性，并且提供了烯烃的可编程合成。审查了均相和交叉偶联的变体，并强调了进一步发展的前景。