The ligand is key: Palladium(II)-catalyzed C−H carbonylation reactions of methylene C−H bonds in secondary aliphatic amines lead to the formation of trans-disubstituted β-lactams in excellent yields and selectivities. The generality of the C−H carbonylation process is aided by the action of xantphos-based ligands.
配体是关键:
钯(II)催化的脂肪族仲胺中亚甲基CH键的CH羰基化反应导致反式二取代的β-内酰胺的形成,具有极高的收率和选择性。基于
Xantphos的
配体的作用有助于CH羰基化过程的普遍性。