(RO)3Si–C3H6–N(R′)–CO–C3F6–COOAg (3a: R = Et, R′ = H; 3b: R = R′ = Me). These homogeneous ruthenium-species are among a few known examples with mixed anionic ligands. Exchange of both chloride ligands afforded the catalysts [Ru((RO)3Si–C3H6–N(R′)–CO–C3F6–COO)(CH–o-O–iPr–C6H4)(SIMes)] (9: R = Et, R′ = H; 11: R = R′ = Me) and [Ru((RO)3Si–C3H6–N(R′)–CO–C3F6–COO)(CH–o-O–iPr–C6H4)(PCy3)] (8: R = Et, R′ = H; 10:
描述了适用于均相和异相复分解的新型钌基催化剂的合成。从第一代Hoveyda-Grubbs(1)和第二代Hoveyda-Grubbs(2)催化剂开始,均相催化剂[RuCl((RO)3 Si–C 3 H 6 –N(R′)– CO–C 3 F 6 –COO)(CH- o -O– i Pr–C 6 H 4)(SIMes)](4:R = Et,R′= H; 5:R = R′= Me)(SIMes = 1,3-双(2,4,6-三甲基苯基)-4,5-二氢咪唑-2-亚烷基)是通过用三烷氧基甲硅烷基官能化的羧酸银取代一个氯化物配体而制备的( RO)3 Si–C 3 H 6 –N(R')– CO–C 3 F 6 –COOAg(3a:R = Et,R'= H; 3b:R = R'= Me)。这些均匀的钌物种是少数几个带有混合阴离子配体的已知实例。交换两个氯化物配体提供了催化剂[Ru((RO)3 Si–C 3 H
Trialkoxysilyl‐Functionalized Silver(
<scp>I</scp>
) Carboxylates: New Building Blocks for the Synthesis of Immobilizable and Immobilized Homogeneous Catalysts