Chromium allyloxy(aryl)carbene complexes undergo formal [2,3]- or [1,2]-sigmatropic rearrangement by the catalytic use of Pd(PPh3)4 under CO atmosphere. The reaction is considered to proceed via palladium aroyl π-allyl complex, which is converted to the corresponding aryl ketones by reductive elimination.
铬烯丙氧基(芳基)卡宾配合物通过在 CO 气氛下催化使用 Pd(PPh3)4 进行正式的 [2,3]- 或 [1,2]-σ 重排。该反应被认为是通过钯芳酰基 π-烯丙基络合物进行的,该络合物通过还原消除转化为相应的芳基酮。