1436383-52-6Relevant articles and documents
Palladium-catalyzed C-H bond acetoxylation: An approach to ortho-substituted hydroxy[2.2]paracyclophane derivatives
Lennartz, Petra,Raabe, Gerhard,Bolm, Carsten
, p. 3237 - 3249 (2013/01/15)
The palladium-catalyzed direct C-H bond acetoxylation of [2.2]paracyclophanes has been investigated. Various mono- and disubstituted [2.2]paracyclophanes were subjected to typical Sanford acetoxylation conditions. Oxime ethers, an oxime acetate, a pyridine, and a pyrazole with [2.2]paracyclophane cores underwent direct ortho-acetoxylation in good to excellent yields using 1-5 mol% of palladium(II) acetate in combination with iodobenzene diacetate as oxidant. The reactions could be performed on a multigram scale, and the ortho-acetoxylated [2.2]paracyclophanes were suitable for further functionalizations affording a hydroxy[2.2]paracyclophane derivative and a planar chiral benzoxazole. Copyright