290291-85-9Relevant academic research and scientific papers
Synthesis of halfsandwich ruthenium complexes of sulfinic acid esters [1]
Schenk, Wolfdieter A.,Kuhnert, Nikolai
, p. 527 - 535 (2000)
A series of halfsandwich ruthenium sulfinato complexes [CpRu(PR′3)2(SO2R)] (R = Me, CH2Ph, C2H4Ph, Ph, 4-C6H4Me; PR′3 = PMe3, 1/2 dppm) with various electronic and steric environments around the ruthenium centre, have been prepared by insertion of SO2 into a ruthenium carbon bond, by a direct ligand exchange reaction, or by oxidation of thiolato complexes with 3-chloroperoxybenzoic acid. The chiral complexes [CpRu(CO)(PPh3)(SO2R)] (R = Me, CH2Ph, Ph) were obtained similarly by oxidation of the corresponding thiolates with magnesium monoperoxyphthalate. Alkylation of 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.
