Ready deprotonation of the protic solvento species [Ru 2 (CO) 5 (R′OH){µ-(RO) 2 PN(Et)P(OR) 2 } 2 ] 2+ (R = Me or Pr i ; R′= H, Me, Et, etc.) and the formation of [Ru 2 {µ-OC(O)}(CO) 4 {µ-(RO) 2 PN(Et)P(OR) 2 } 2 ] containing carbon dioxide in a bridging co-ordination mode
1990; Royal Society of Chemistry; Issue: 14 Linguagem: Inglês
10.1039/c39900000985
ISSN2050-5639
AutoresJohn S. Field, Raymond J. Haines, Jörg Sundermeyer, Stephen F. Woollam,
Tópico(s)Asymmetric Hydrogenation and Catalysis
ResumoTreatment of [Ru2(µ-CO)(CO)4{µ-(RO)2PN(Et)P(OR)2}2](R = Me or Pri) with silver(I) salts in the presence of protic solvents of the type R′OH (R′= H, Me, Et, etc.) leads to the formation of the solvento species [Ru2(CO)5(R′OH){µ-(RO)2PN(Et)P(OR)2}2]2+ which is readily deprotonated and rearranges to afford [Ru2{µ-OC(OR′)}(CO)4{µ-(RO)2PN(Et)P(OR)2}2]+; [Ru2{µ-OC(OH)}(CO)4{µ-(RO)2PN(Et)P(OR)2}2]+ can be deprotonated further to give [Ru2{µ-OC(O)}(CO)4{µ-(RO)2PN(Et)P(OR)2}2] containing a bridging carbon dioxide group, confirmed X-ray crystallographically.
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