Webb8 nov. 2024 · Kagan也发现在反应中加入催化量的氯化铁可以明显地减少反应时间，而这一方法在后来被G.A. Molander进一步的研究发展。 在1984年G.A.Molander第一次报道了在分子内发生的此反应，ω-碘代酯在二碘化钐和催化量的三价铁盐的存在下发生分子内的酰基取代反应，并进一步发生此反应生成复合多环脂烃。 现在此类反应被统称为Kagan … WebbKaganer Murray C B, Kagan C R and Bawendi M G 1995 Self-organization of CdSe nanoorystallites into three-dimensional quantum dot superlattioes Science 270 1335... Asymmetric hydrogenation has been achieved with dissolved Wilkinson type catalysts (A. J. Birch, 1976 D. Valentine, Jr., 1978 H.B. Kagan, 1978). The (R)- and (S)-[l,l -binaph …
[全合成2]天然产物(±)-Steenkrotin A 的全合成（二） - 知乎
Webb比如在下图的合成路线中运用到了两次Kagan-Molander偶联 第一次是分子间，第二次是分子内，因为C-Cl键活性较低，需要在光照条件下促进自由基产生。 反应中在得到了第 … WebbSamarium (II) iodide is an inorganic compound with the formula SmI 2. When employed as a solution for organic synthesis, it is known as Kagan's reagent. SmI 2 is a green solid and solutions are green as well. It is a strong one-electron reducing agent that is used in organic synthesis . Structure [ edit] is jump force on steam
Cross-coupling reactions of organotrifluoroborates
WebbKagan-Molander coupling OBn IMAM & Ring expansion 7, Readily available chiral starting material BnO . OBn o 10 13b, 22% 8) 9-BBN; NaOMe, 12 9) Sm12, Fe(dbm)3 OBn OH 14b, 75% for 2 steps 7 steps, 16% OBn > 7, 94% ee OBn 10 13a, 1) KHMDS, PhNTf2; KHMDS, Davis oxaziridine, 68% 6) 12, PPh3, 1m 7) LDA 67% for 2 steps OBn Webbカガン・モランダーカップリング Kagan-Molander Coupling カストロ・ステファンス カップリング Castro-Stephens Coupling カルボニル化を伴うクロスカップリング Carbonylative Cross Coupling ピナコールカップリング Pinacol Coupling 檜山クロスカップリング Hiyama Cross Coupling Webb17 maj 2013 · Organotrifluoroborates are partners for cross-coupling that have emerged as complementary and often unique alternatives to other organoboron reagents. This chapter provides a comprehensive overview of all cross-coupling reactions of the various classes of organotrifluoroborates that have been carried out through August, 2009. keyboard and mouse and headset