作者:Wing Y. Man、Sören Bock、Natasha N. Zaitseva、Michael I. Bruce、Paul J. Low
DOI:10.1016/j.jorganchem.2010.11.026
日期:2011.5
Gold(I) alkynyl complexes are shown to efficiently couple with aryl iodides under mild conditions in the presence of both Pd(II) and Cu(I) co-catalysts. The reaction is not gold catalysed, but rather the Au(I) centre serves to transfer the alkynyl moiety to Cu(I), which then enters the conventional Sonogashira cycles. Using this method, a small range of 1,4-disubstituted diynes, including examples
已显示金(I)炔基络合物在钯(II)和铜(I)助催化剂的存在下,在温和条件下可与芳基碘化物有效偶联。该反应不是金催化的,而是Au(I)中心用于将炔基部分转移至Cu(I),然后进入常规的Sonogashira循环。使用这种方法,已经直接从[[(Ph 3 P)AuC CC CAu(PPh 3)]和碘化芳基ArI制备了少量的1,4-二取代的二炔,包括差异取代的化合物ArC CC CAr'的实例。