作者:Wolfdieter A. Schenk、Nikolai Kuhnerta
DOI:10.1515/znb-2000-0614
日期:2000.6.1
the sulfinato complexes with oxonium salts [R"3O]X (R" = Me, Et; X = BF4 , PF6) gave ruthenium complexes of sulfinic acid esters, [CpRu(L)(L′)(S(O)(OR″)R)]X in high yields and, for the chiral complexes, up to 82% de. The esters may be detached from the metal by ligand exchange with acetonitrile. Stronger nucleophiles such as I- or SMe- dealkylate the coordinated sulfinic acid esters.
一系列半夹心亚磺酸钌配合物 [CpRu(PR'3)2(SO2R)] (R = Me, CH2Ph, C2H4Ph, Ph, 4-C6H4Me; PR'3 = PMe3, 1/2 dppm) 与各种电子和空间钌中心周围的环境是通过将 SO2 插入钌碳键、通过直接配体交换反应或通过硫醇根络合物与 3-氯过氧苯甲酸的氧化来制备的。手性配合物 [CpRu(CO)(PPh3)(SO2R)] (R = Me, CH2Ph, Ph) 类似地通过用单过氧邻苯二甲酸镁氧化相应的硫醇盐获得。亚磺酸根配合物与氧鎓盐 [R"3O]X (R" = Me, Et; X = BF4, PF6) 的烷基化得到亚磺酸酯的钌配合物 [CpRu(L)(L')(S(O) (OR″)R)]X 的收率很高,对于手性配合物,高达 82% de。酯可以通过与乙腈的配位体交换而从金属上分离。更强的亲核试剂如 I- 或 SMe- 使配位的亚磺酸酯脱烷基化。