Synthesis of planar chiral pseudo–ortho-substituted aryl[2.2]paracyclophanes by stepwise successive palladium-catalyzed coupling reactions
摘要:
Planar chiral aryl[2.2]paracyclophanyl-thioureas and -phosphine with a pseudo-ortho substitution pattern have been designed and efficiently synthesized by stepwise successive palladium-catalyzed crosscoupling reactions. (C) 2011 Elsevier Ltd. All rights reserved.