Control of the Regioselectivity in Cobalt- versus Ruthenium-Catalyzed Alder-ene Reaction of Unsymmetrical 1,3-Diynes
作者:Sebastian M. Weber、Gerhard Hilt
DOI:10.1021/acs.orglett.6b03729
日期:2017.2.3
The Alder-enereaction of trialkylsilyl-substituted 1,3-butadiynes with terminal alkenes was investigated utilizing a cobalt-based catalyst, and the results were compared with Alder-ene rections catalyzed by the [CpRu(H3CCN)3]PF6 catalyst. Obviously, the two catalysts gave complementary results of yn-dienes differing in the site where the new carbon–carbon bond was formed. Of particular interest are
A facile electrochemical synthesis of silyl acetal, a synthetic equivalent of formylsilane, was described in this study. Using undivided cells and platinum and stainless-steel electrodes, the constant current electrolysis of 2-silyl-1,3‑dithiane with monoalcohol and diol in acetonitrile yielded various silyl acetals. The silyl acetal was readily converted to the corresponding formylsilane. This method