[reaction--see text] Pentamethyldisiloxane reacts with a range of functionalized dienes in the presence of a catalytic 1:1 mixture of (N-N)Pd(Me)Cl [N-N = 1, 10-phenanthroline or (R)-(+)-4-isopropyl-2-(2-pyridinyl)-2-oxazoline] and NaBAr(4) [Ar = 3,5-C(6)H(3)(CF(3))(2)] to form the corresponding silylated carbocycles in good yield and with good stereoselectivity. Treatment of these silylated carbocycles
[反应-见正文]在(NN)Pd(Me)Cl [NN = 1,10-
菲咯啉或(R)-(+)1:1催化混合物的存在下,五甲基二
硅氧烷与一系列官能化二烯反应-4-异丙基-2-(2-
吡啶基)-2-
恶唑啉]和NaBAr(4)[Ar = 3,5-C(6)H(3)(CF(3))(2)]形成相应的甲
硅烷基化碳环,收率高,立体选择性好。在室温下用过量的KF和
过氧乙酸处理这些甲
硅烷基化的碳环化合物48小时,可以形成具有良好收率的相应醇,并保留了立体
化学。