Hydrogen transfer hydroalumination of terminal alkenes and dienes can be achieved with 1.1 equiv. of (i-Bu)3Al and catalytic amounts of Cl2Pd(PPh3)2 and other late transitionmetal complexes containing Co, Rh, Ni, and Pt at ambient temperature in high yields.
group, readily undergo the ZACAreaction with Me3Al and higher alkylalanes in a 1:1 molar ratio in the presence of a catalytic amount (1–5 mol %) of bis[(1-neomenthyl)indenyl]zirconium dichloride in good yields and in good enantioselectivity (70–92% ee), thereby providing an efficient and convenient route to various alkene-containing chiral natural products. Only the reaction of the parent 1,4-pentadiene
Stereoselective synthesis of vinylsilanes from alkynylsilanes via hydromagnesiation. Application to a synthesis of 7(E)-dodecenyl acetate and dihydrojasmone
作者:Fumie Sato、Hiroshi Watanabe、Youichi Tanaka、Takafumi Yamaji、Masao Sato