Ligands containing an enantiomerically pure oxazoline and a sulfur-containing tether have been examined for their ability to provide asymmetric induction in palladium catalysed allylic substitution reaction. The enantioselectivity obtained was found to be highly dependent upon the stereochemistry at sulfur (for sulfoxides), and also somewhat dependent upon the nature of the aryl group attached to the
已经检查了包含对映体纯的
恶唑啉和含
硫的系链的
配体在
钯催化的烯丙基取代反应中提供不对称诱导的能力。发现获得的对映选择性高度取决于
硫(对于亚砜)处的立体
化学,并且还取决于与
硫连接的芳基的性质。