Synthesis and Cycloaddition Reactions of Ethyl (<i>E</i>)-3-Aryl-2-(nonafluorobutyl)sulfonyl-2-propenoates
作者:Olaf Menke、Elke Steinhuber、Antonio García Martínez、L. R. Subramanian、Michael Hanack
DOI:10.1055/s-1994-25683
日期:——
Ethyl (nonafluorobutyl)sulfonylacetate (2) reacts stereo-selectively with substituted benzaldehydes 3 affording (E)-3-aryl-2-(nonafluorobutyl)sulfonyl-2-propenoates (E)-4, which are good dienophiles. The addition to cyclopentadiene yields exclusively the exo-products 8.
乙基(九氟丁基)磺酸乙酸酯(2)与取代苯甲醛(3)发生立体选择性反应,生成(E)-3-芳基-2-(九氟丁基)磺酸-2-丙烯酸酯(E)-4,这些产物是良好的二烯亲体。与环戊二烯的加成反应仅产生外异构体产物8。