Gold-Catalyzed Tandem Cycloisomerization and Dimerization of Chiral Homopropargyl Sulfonamides
作者:Yong-Fei Yu、Chao Shu、Cang-Hai Shen、Tian-Yi Li、Long-Wu Ye
DOI:10.1002/asia.201301058
日期:2013.12
A reaction built for two: A novel gold‐catalyzed tandemcycloisomerization/dimerization of chiralhomopropargylsulfonamides has been developed. The reaction provides ready access to functionalized pyrrolidines in mostly good to excellent yields. Notably, excellent diastereoselectivities (>50:1) were also achieved in all cases.
Gold-Catalyzed Oxidative Cyclization of Chiral Homopropargyl Amides: Synthesis of Enantioenriched γ-Lactams
作者:Chao Shu、Meng-Qi Liu、Shan-Shan Wang、Long Li、Long-Wu Ye
DOI:10.1021/jo400127x
日期:2013.4.5
A gold-catalyzedtandemcycloisomerization/oxidation of homopropargyl amides has been developed, which provides ready access to synthetically useful chiral γ-lactams with excellent ee by combining the chiral tert-butylsulfinimine chemistry and gold catalysis. The utility of this methodology has also been demonstrated in the synthesis of biologically active compound S-MPP and natural product (−)-bgugaine