Fluoroalkylcontaining 3-oxo esters react with aldehydes to form 2-benzylidene-3-fluoroacyl-esters or 4-aryl(alkyl)-3,5-dialkoxycarbonyl-2,6-dihydroxy-2,6-di(fluoroalkyl)tetrahydropyranes depending on the conditions. Ethyl pentafluorobenzoylacetoacetate with benzaldehyde affords 3,5-diethoxy-carbonyl-4-phenyl-2-pentafluorophenyl-7,8,9,10-tetrafluoro-4,5-dihydrobenzo[b]oxacin-6-one.
含氟烷基的3-氧代酯与醛反应形成2-亚苄基-3-氟代酰基酯或4-芳基(烷基)-3,5-二烷氧基羰基-2,6-二羟基-2,6-二(氟代烷基)四氢吡喃,取决于条件。五氟苯甲酰基乙酰乙酸乙酯与苯甲醛得到3,5-二乙氧基-羰基-4-苯基-2-五氟苯基-7,8,9,10-四氟-4,5-二氢苯并[ b ]恶沙星6-1。
KROXALEV, V. M.;SALOUTIN, V. I.;PASHKEVICH, K. I., IZV. AN CCCP. CEP. XIM.,(1987) N 9, 2112-2113
作者:KROXALEV, V. M.、SALOUTIN, V. I.、PASHKEVICH, K. I.