Iimura Tomohiro, Akasaka Naohiko, Kosai Tomoyuki, Iwamoto Takeaki
Science & Technology, Dow Corning Toray, Ichihara, Chiba 299-0108, Japan.
Dalton Trans. 2017 Jul 11;46(27):8868-8874. doi: 10.1039/c7dt01113j.
A platinum(0) complex bearing a cyclic (alkyl)(amino)silylene and a 1,3-divinyl-1,1,3,3-tetramethyldisiloxane (DVTMS) was synthesized and isolated in the form of colorless crystals. The single-crystal X-ray diffraction analysis of this complex in combination with theoretical calculations indicated that the Pt→Si π-back-donation in this complex is weaker than that in the corresponding cyclic-dialkylsilylene-ligated Pt complex. The performance of this complex in the catalytic hydrosilylation of (MeSiO)MeSi-H with various terminal alkenes that contain functional groups was comparable to that of the corresponding cyclic dialkylsilylene/DVTMS Pt(0) complex.
合成并分离出了一种带有环状（烷基）（氨基）硅烯和1,3 - 二乙烯基 - 1,1,3,3 - 四甲基二硅氧烷（DVTMS）的铂（0）配合物，其呈无色晶体形式。该配合物的单晶X射线衍射分析与理论计算相结合表明，此配合物中Pt→Si的π - 反馈给电子作用比相应的环状二烷基硅烯配位的铂配合物中的要弱。该配合物在催化含官能团的各种末端烯烃与（MeSiO）MeSi - H的硅氢加成反应中的性能与相应的环状二烷基硅烯/DVTMS铂（0）配合物相当。
