Palladium-catalyzed 1,4-addition of arylboronic acids to unsaturated carbonyl compounds has been limitedly used for ketone and aldehyde derivatives. It was found that reaction with N-acylamides exceptionally proceeds with high yields and high enantioselectivities. A dicationic palladium–chiraphos catalyst 3 gave optically active β-arylamides of up to 98% ee.
钯催化的芳基
硼酸与不饱和羰基化合物的 1,4-加成已被有限地用于酮和醛衍
生物。研究发现,与 N-酰基酰胺的反应特别能以高产率和高对映选择性进行。使用二盐基
钯-
铁石棉催化剂 3 生成的光学活性 β-芳基酰胺的ee高达 98%。