An unusual alkylidyne homologation

作者：Han Yong Shen; Hill Anthony F^*; Kong Richard Y

来源：Chemical Communications, 2018, 54(18): 2292-2295.

DOI：10.1039/c8cc00119g

The reaction of [W(?CH)Br(CO)(2)(dcpe)] (dcpe = 1,2-bis(dicyclohexylphosphino)ethane) with (BuLi)-Bu-t and SiCl4 affords the trichlorosilyl ligated neopentylidyne complex [W(?(CBu)-Bu-t)(SiCl3)(CO)(2)(dcpe)]. This slowly reacts with H2O to afford [W(?(CCH2Bu)-Bu-t)Cl-3(dcpe)] and ultimately H2C?(CHBu)-Bu-t via an unprecedented alkylidyne homologation in which coordinated CO is the source of the additional carbon atom with potential relevance to the Fischer-Tropsch process.

• 出版日期2018-3-4