Stereoselective, Ag-Catalyzed Cyclizations To Access Polysubstituted Pyran Ring Systems: Synthesis of C<sub>1</sub>–C<sub>12</sub> Subunit of Madeirolide A
作者:Kazuhiro Watanabe、Jinming Li、Nagarathanam Veerasamy、Ankan Ghosh、Rich G. Carter
DOI:10.1021/acs.orglett.6b00414
日期:2016.4.15
into the scope of a silver-catalyzed cyclization (AgCC) of propargyl benzoates for accessing pyran ring systems has been reported. The impact of the degree of substitution, nature of the substitution on the carbon backbone/benzoate moiety, and stereochemistry has been evaluated. The application of this methodology to the synthesis of the C1–C12 southern fragment of madeirolide A is disclosed.
已经报道了对丙炔基苯甲酸酯的银催化环化(AgCC)以进入吡喃环系统的范围的探索。已经评估了取代度,取代性质对碳主链/苯甲酸酯部分和立体化学的影响。公开了该方法在合成马来酰内酯A的C 1 -C 12南部片段中的应用。