ortho-DisubstitutedF-Benzenes. IV. The Formation of 2-Acyl-F-phenyl Carboxylates from (F-Benzo)furans by the Oxidative Cleavage of the Furan-ring
摘要:
2,3-Diphenyl-, 2-phenyl-3-methyl-, and 2-methyl-3-phenyl(F-benzo)furans were oxidated with chromium trioxide in acetic acid to produce 2-benzoyl-F-phenyl benzoate, 2-acetyl-F-phenyl benzoate、而 2-苯基(F-苯并呋喃)最不容易受到相同试剂的影响,生成的 1-(2-羟基-F-苯基)-2-苯基乙二酮收率很低。产物的光谱数据与正交二取代 F-苯的结构相符。