名称:
Reactions of (η6-C6Me6)RuCl(MDMPP-P,O) and (η6-C6Me6)RuCl(BDMPP-P,O,O) complexes with Lewis bases or alkynes, where MDMPP-P,OP(2-O-6-MeOC6H3)Ph2 and BDMPP-P,O,OP(2-O-6-MeOC6H3)2{2,6-(MeO)2C6H3}
摘要:
Reaction of [(eta(6)-C6Me6)RuCl(MDMPP-P,O)] 1 (MDMPP-P, O=P(2-O-6-MeOC6H3)Ph-2] with CO under high pressure at 95 degrees gave RuCl(CO)(3)(MDMPP-P,O) 2. [(eta(6)-p-cymene)Ru(TDMPP-P,O,O)] (TDMPP-P,O,O=P(2-O-6-MeOC6H3)(2){2,6-(MeO)(2)C6H3}) reacted with CO or CO/2,6-xylyl isocyanide under high pressure to form Ru(CO)(3)(TDMPP-P,O,O) 4 or Ru(CO)(2)(XyINC)(TDMPP-P,O,O) 5 (Xyl = 2,6-Me2C6H3), respectively. Reactions of 1 with Lewis bases in the presence of NH,PF, gave [(eta(6)-C6Me6)RuL(MDMPP-P,O)](PF6) 6 (L = CO, XylNC). Complex 1 reacted with mono-substituted acetylenes in acetone in the presence of bases to form the metal alkynyl complexes [(eta(6)-C6Me6)Ru(C equivalent to CR)(MDMPP-P,O)] 7. Similar reaction of 1 with PhC equivalent to CH in the presence of NaPF6 in acetone or MeOH gave a vinylidene 8a (R=C=CHPh) and a carbene complex 9a (R = CCH2Ph(OMe)) [(eta(6)-C6Me6)Ru(=R)(MDMPP-P,O)](PF6), respectively. A reaction of 1 with HC equivalent to CCMe2OH and NaPF6 in MeOH gave a metallabutadiene complex 10c [(eta(6)-C6Me6) Ru{=C(OMe)CH=CMe2} (MDMPP-P,O)]. X-ray analyses of 6b (L = XylNC), 7a (R = Ph) and 7e (R = CH2OH) were carried out to confirm the structures; 6b, monoclinic, space group P2(1)/c (No. 14), a = 9.910(8) Angstrom, b = 25.370(7) Angstrom, c = 16.020(7) Angstrom, beta = 105.29(5)degrees, V = 3885(7) Angstrom(3), Z = 4, R = 0.050, R-W = 0.053 for 4064 reflections (I > 3.0 sigma(I)); 7a, orthorhombic, space group Pbca, a = 17.222(4) Angstrom, b = 23.772(8) Angstrom, c = 16.003(8) Angstrom, V= 6552(7) Angstrom(3), Z = 8, R = 0.052, R-W = 0.052 for 1836 reflections (I > 3.0 sigma(I)); 7e, triclinic, space group P-1 (No. 2), a = 10.639(4) Angstrom, b = 14.778(3) Angstrom, c = 10.214(3) Angstrom, alpha = 97.05(2)degrees, beta = 113.01(2)degrees, gamma = 79.12(2)degrees, V = 1449(2) Angstrom(3), Z = 2, R = 0.041, R-W = 0.040 for 3270 reflections. (I > 3.0 sigma(I)). (C) 1998 Elsevier Science S.A. All rights reserved.