levels of enantioselectivity are reported for the synthesis of α-tosyloxy ketones, using enol esters and chiral iodine(III) reagents. The reaction can be performed under both stoichiometric and catalytic conditions. These results suggest widely different reaction mechanisms for the reaction of ketones versus enol esters, supporting recent computational insights.
由于其无处不在的性质,开发接近手性非外消旋α-取代酮的实用方法尤为重要。报告了使用烯醇酯和手性
碘(III)试剂合成α-
甲苯磺酰氧基酮的前所未有的对映选择性
水平。该反应可以在
化学计量和催化条件下进行。这些结果表明酮与烯醇酯反应的反应机理大不相同,这支持了最新的计算见解。