Synthesis of 9,10-Phenanthrenequinones by Photocyclization of Derivatives of Benzoins: Scope and Limitation of the Methodology
摘要:
Symmetric 9,10-phenanthrenequinones with methyl, methoxy, and chloro substituents at the 3 and 6 positions have been synthesized by photocyclization of 4,5-bis-(aryl)-2-phenyl-1,3,2-dioxaboroles and 2,3-diaryldioxenes followed by oxidative hydrolysis.