Nickel-Catalyzed Reaction of Benzamides with Bicylic Alkenes: Cleavage of C–H and C–N Bonds
作者:Aymen Skhiri、Naoto Chatani
DOI:10.1021/acs.orglett.9b00351
日期:2019.3.15
The nickel-catalyzed reaction of aromatic amides that contain an 8-aminoquinoline as a directing group with bicyclic alkenes, such as norbornene and 1,4-dihydro-1,4-epoxynaphthalene, results in the cleavage of both the C–H bond at the ortho-position of the benzene ring and the C(O)–N bond to give methanofluoren-9-one and 1,4-epoxyfluoren-9-one derivatives. Both Ni(OTf)2 and Ni(cod)2 show a high catalytic
含8-氨基喹啉作为导向基团的芳族酰胺与双环烯烃(如降冰片烯和1,4-二氢-1,4-环氧萘)的镍催化反应导致两个CH键在C原子上断裂苯环和C(O)–N键的邻位可得到甲氧芴9-one和1,4-环氧芴9-one衍生物。Ni(OTf)2和Ni(cod)2均显示出高催化活性。AgOAc的存在对于反应进行至关重要。在间位取代的芳族酰胺中,受阻较小的C–H键专门被官能化。