An Efficient Method for the Protection of Aromatic Amines with Benzostabase and Its Utility in Anionic Aromatic Transformations
摘要:
Herein we describe an efficient and generally applicable method of protecting a diverse series of aromatic amines with the benzostabase' group. We also demonstrate its efficient use in aromatic anionic chemistry including its utility in the anionic ortho Snieckus-Fries rearrangement.
An Efficient Method for the Protection of Aromatic Amines with Benzostabase and Its Utility in Anionic Aromatic Transformations
摘要:
Herein we describe an efficient and generally applicable method of protecting a diverse series of aromatic amines with the benzostabase' group. We also demonstrate its efficient use in aromatic anionic chemistry including its utility in the anionic ortho Snieckus-Fries rearrangement.
Nickel(0)-catalyzed cross coupling of aryl O-carbamates and aryl triflates with Grignard reagents. Directed ortho metalation-aligned synthetic methods for polysubstituted aromatics via a 1,2-dipole equivalent
The first Ni(0)-catalyzed cross-coupling reactions of aryl O-carbamates and aryl triflates with Grignard reagents (Scheme I) to give diversely polysubstituted aromatics 2d and 2e (Table I) which feature regiospecificity based on directed ortho metalation (carbamate), minimal beta-hydride elimination (triflate), and dependence on steric and electronic effects are described.