The synthesis of higher oligo(ethynylene)s represents a challenge in modern organic chemistry, because of their decreasing stability with increasing length and side-product formation during the reaction. Recently, we reported the development of a mild and convenient sp–sp
carbon heterocoupling protocol for the preparation of glycosylated oligo(ethynylene)s based on the Negishi reaction. The application of this protocol in combination with a one-step desilylation-bromination allowedfor the sequential synthesis of glycosylated oligo(ethynylene)s up to the octayne.
较高级别的
乙炔寡聚物的合成在现代有机
化学中是一个挑战,因为随着长度的增加,它们的稳定性降低并且在反应过程中会产生副产物。最近,我们报道了一种温和方便的sp-sp碳杂交偶联协议的开发,用于基于Negishi反应制备糖基化
乙炔寡聚物。将该协议与一步脱
硅溴化反应相结合,实现了糖基化
乙炔寡聚物的顺序合成,直至辛炔。