The coordination chemistry and reactivity of amino-dithiaphospholanes with rhodium, iridium, and ruthenium
摘要:
Novel amino-dithiaphospholane complexes of ruthenium, iridium, and rhodium were synthesized, and their properties were studied. Reaction of the new amino-dithiaphospholane (RS)(2)PNR2' (R = binaphthyl, R' = CH2Ph, (rac)-4) with [RuCl2(P-cymene)](2) afforded [RuCl2(p-cymene)((rac)-4)] in 67% isolated yield. Similarly, the new amino-dithiaphospholanes (RS)(2)PNR2' (R = cyclohexyl, (rac)-7) and (RS)(2)PNR2' (R = phenyl, 9) gave upon reaction with [RhCl(CO)(2)](2) and [IrCp*Cl-2](2) the novel complexes [RhCl(CO)(L)(2)] and [IrCp*Cl-2(L)] (L = (rac)-7, 9) in 61-96% yields. The ruthenium complex is catalytically active for the etherification of propargylic alcohols with methanol and ethanol (8-48 h, 90 degrees C, 40-85% isolated yields). (C) 2008 Elsevier Ltd. All rights reserved.