The Application of HETPHOX Ligands to the Intramolecular Asymmetric Heck Reaction
作者:Patrick Guiry、Martin Fitzpatrick、Anthony Coyne
DOI:10.1055/s-2006-951500
日期:2006.11
A new thiophene-oxazoline P,N ligand derived from cis-aminoindanol was prepared and a range of analogous HETPHOX ligands were applied to the intramolecular Heck reaction. The enantioselectivity obtained was 76% employing the tert-butyl-substituted HETPHOX ligand with an aryl triflate spirooxindole precursor. The isomer distribution of the product spirooxindoles was high (up to 99:1).
我们制备了一种源自顺式氨基茚满醇的新型噻吩-噁唑啉 P,N 配体,并将一系列类似的 HETPHOX 配体应用于分子内 Heck 反应。使用叔丁基取代的 HETPHOX 配体与三氟丙烯螺吲哚前体发生的对映选择性为 76%。产物螺氧吲哚的异构体分布很广(高达 99:1)。