Scandium-Catalyzed Carbon-Carbon Bond Formations Using .ALPHA.-Organosulfanyl and Organoselanyl-.ALPHA.-fluoroacetic Acid Derivatives
作者:Kohei Gotoh、Teruhisa Yamamoto、Mitsuhiro Yoshimatsu
DOI:10.1248/cpb.54.1611
日期:——
The scandium-catalyzed reactions of alpha-organosulfanyl and organoselanyl-alpha-fluoroacetates 1-2, acetamides 3-4 and acetonitrile 5 with soft nucleophiles proceeded to give the products 6a-b, 7a-c, 8a-c, 9a-e in good to high yields. We also successfully performed the scandium-catalyzed intramolecular cyclization reactions and obtained the unique 5-methylene-2-oxotetrahydropyrans 16-17.
soft催化的α-有机硫烷基和有机糖基-α-氟乙酸酯1-2,乙酰胺3-4和乙腈5与柔软的亲核试剂的反应进行,得到的产物6a-b,7a-c,8a-c,9a-e好到高产。我们还成功地进行了dium催化的分子内环化反应,并获得了独特的5-亚甲基-2-氧代四氢吡喃16-17。