Diastereoselective Three??Step Route to o??(6??Nitrocyclohex??3??en??1??yl) phenol and Tetrahydro??6H??benzo [c] chromen??6??ol Derivatives from Salicylaldehydes
D Lanari, R Ballini, A Palmieri, F Pizzo…
文献索引：Lanari, Daniela; Ballini, Roberto; Palmieri, Alessandro; Pizzo, Ferdinando; Vaccaro, Luigi European Journal of Organic Chemistry, 2011 , # 15 p. 2874 - 2884
Abstract This work was aimed at preparing o-(6′-nitrocyclohex-3′-en-1′-yl) phenol and tetrahydro-6H-benzo [c] chromen-6-ol derivatives in three steps starting from salicylaldehydes. Initially 3-acetylcoumarins were prepared in the absence of solvent using a solid base catalyst such as PS-TBD. In the second step, the Diels–Alder reactions of 3- nitrocoumarins and 3-acetylcoumarins under thermal conditions or in the presence of ...
