1,1-Difluoronaphthalene-2(1H)-ones were proposed as novel fluorinated dienophiles for the Diels-Alder reaction. The influence of the diene structure, reaction conditions on the rate and diastereoselectivity of the Diels-Alder cycloaddition was studied. For the reaction of 1,1-difluoronaphthalene-2(1H)-one with cyclopentadiene a good correlation of the logarithm of endo/exo ratio vs solvent polarity
提出了1,1-二
氟萘-2(1 H)-1作为Diels-Alder反应的新型
氟化二烯。研究了二烯结构,反应条件对Diels-Alder环加成反应速率和非对映选择性的影响。对于1,1-二
氟萘-2(1 H)-1与
环戊二烯的反应,获得了内/外比对数与溶剂极性参数的良好相关性。在DFT计算的基础上,合理化了二烯结构的作用和溶剂效应。通过变形-相互作用模型方法阐明了影响反应能的因素。开发了环加成-芳构化序列,用于合成环
萘衍
生物。