Synthesis of planar chiral imidazo[1,5-a]pyridinium salts based on [2.2]paracyclophane for asymmetric β-borylation of enones

Article abstract of DOI:10.1016/j.tetasy.2011.06.023

Novel planar chiral pseudo-geminal and pseudo-ortho-oxazoline substituted [2.2]paracyclophanyl imidazo[1,5-a]pyridinium triflates were synthesized. During the synthesis of a pseudo-ortho imidazo[1,5-a]pyridinium triflate based on [2.2]paracyclophane, the