Trimerization of <i>tert</i>-Butylacetylene to 1,3,6-Tri(<i>tert</i>-butyl)fulvene Catalyzed by Titanium Aryloxide Compounds
作者:Eric S. Johnson、Gary J. Balaich、Phillip E. Fanwick、Ian P. Rothwell
DOI:10.1021/ja972306k
日期:1997.11.1
scattered reports of the stoichiometric conversion of three alkyne units into the fulvene nucleus via a formal [2+2+1] cycloaddition.3,4 In this paper, we report on our initial synthetic and mechanistic studies of a titanium aryloxide catalyst system which selectively converts tert-butylacetylene into the corresponding fulvene.
炔烃链段的 [2 + 2 + 2] 环加成生成芳烃核是有机过渡金属化学中最普遍和研究最多的反应之一。 1,2 相比之下,只有零星报道三种化学计量转化炔单元通过正式的 [2+2+1] 环加成进入富烯核。 3,4 在本文中,我们报告了我们对芳氧基钛催化剂体系的初步合成和机理研究,该体系选择性地将叔丁基乙炔转化为相应的富烯.