regiodivergent synthesis of either 14H-quinazolino[3,2-f]phenanthridin-14-ones or 6H-quinazolino[1,2-f]phenanthridin-6-ones, selectively, from unmasked 2-([1,1′-biphenyl]-2-yl)quinazolin-4(3H)-one. An intramolecular C(sp2)–NH coupling reaction mediated by PhI(OCOOCF3)2 could lead to two different regioisomers selectively at different temperatures when the dielectric constants of solvents like hexafluoroisopropanol
在这里,我们报告了互变异构体的偶极矩可以是区域发散合成 14 H -quinazolino [3,2- f ]phenanthridin-14-ones 或 6 H -quinazolino[1,2- f ]phenanthridin-的控制因素6-ones,选择性地,来自未掩蔽的 2-([1,1'-biphenyl]-2-yl)quinazolin-4(3 H )-one。当
六氟异丙醇和
三氟乙酸等溶剂的介电常数与互变异构体的偶极矩匹配时,由PhI(OCOOCF 3 ) 2介导的分子内C(sp 2 )-NH 偶联反应可以在不同温度下选择性地产生两种不同的区域异构体。