Bisphenol ligands in the stereocontrol of transformations catalyzed by titanium and tungsten
Bisphenol ligands in the stereocontrol of transformations catalyzed by titanium and tungsten
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双酚配体在钛和钨催化转化立体控制中的应用
DOI：
10.1016/0277-5387(95)85010-4
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发表时间：
1995
期刊：
影响因子：
2.6
通讯作者：
J. Heppert
中科院分区：
文献类型：
--
作者：
Nancy W. Eilerts;J. Heppert
双酚配体在早期过渡元素中具有丰富的配位化学。1，1‘-双-2-萘酚因其在控制金属催化过程的立体化学中的持续作用而特别引起人们的兴趣。在我们实验室的几个项目中，我们努力研究双酚配体的修饰可以影响电环反应的立体选择性的潜在范围和机理。在本文中，我们讨论了其中的两个研究：立体化学修饰的ROMP预催化剂的考察和性能良好的联萘酚氯化钛Lewis酸催化剂的研究。
Bisphenol ligands have a rich coordination chemistry in the early transition elements. 1,1′-Bi-2-naphthols are of particular interest because of their continued utility in controlling the stereochemistry of metal catalyzed processes. In several projects in our laboratory, we have endeavored to examine the potential scope and mechanism by which modifications of bisphenolate ligands can influence the stereoselectivity of electrocyclic reactions. In this paper we discuss two of these studies: an examination of stereochemically modified ROMP precatalysts and a study of well characterized binaphtholate titanium chloride Lewis acid catalysts.