Synthesis, structure and catalytic activity of an air-stable titanium triflate, supported by an amine tris(phenolate) ligand
作者:Steven D. Bull、Matthew G. Davidson、Andrew L. Johnson、Diane E. J. E. Robinson、Mary F. Mahon
DOI:10.1039/b304704k
日期:——
An air- and moisture-stable titanium(IV) triflate, 3, supported by a C3-symmetric amine tris(phenolate) ligand has been synthesised, characterised by X-ray crystallography and demonstrated to be an excellent catalyst for formal aza-Diels–Alder reactions.
已经合成了由 C3 对称胺三(酚盐)配体负载的对空气和水分稳定的三氟甲磺酸钛(IV)3,通过 X 射线晶体学表征,并证明它是形式 aza-Diels 的优良催化剂–桤木反应。
Asymmetric aza-Diels-Alder reaction mediated by chiral boron reagent
作者:Kouji Hattori、Hisashi Yamamoto
DOI:10.1021/jo00038a003
日期:1992.6
An asymmetric aza-Diels-Alder reaction of an imines mediated by an in situ generated chiral boron complex is described. The method is successful with several aldimines and affords products of up to 90% ee.