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- W1969895957 endingPage "7426" @default.
- W1969895957 startingPage "7415" @default.
- W1969895957 abstract "The synthesis of the four olefin metathesis precatalysts Caz-1a–d, featuring the NHC ligand N,N′-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene (SIMes) and four different phosphites (P(OiPr)3, P(OPh)3, P(OEt)3, and P(OMe)3), is reported. The complexes are readily synthesized from commercially available [RuCl2(3-phenylinden-1-ylidene)(pyridine)(SIMes)] (Ind-III) in yields of up to 88%. These complexes adopt an unusual cis configuration between the phosphite and the NHC ligands. NMR experiments and computational studies confirm that the cis complexes are thermodynamically favored in comparison to their trans counterparts. In addition, the isomerization from trans to cis occurs via a mononuclear and non-dissociative mechanism. Among the four precatalysts, cis-Caz-1a, featuring a P(OiPr)3 ligand, displays the highest activity in ring-closing metathesis and cross-metathesis transformations. Experiments at low catalyst loadings demonstrated the potential of this catalyst, allowing better conversions than with commonly used commercially available precatalysts." @default.
- W1969895957 created "2016-06-24" @default.
- W1969895957 creator A5002075704 @default.
- W1969895957 creator A5006345917 @default.
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- W1969895957 creator A5049970193 @default.
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- W1969895957 creator A5057884134 @default.
- W1969895957 creator A5083857227 @default.
- W1969895957 creator A5091859825 @default.
- W1969895957 date "2012-10-16" @default.
- W1969895957 modified "2023-10-14" @default.
- W1969895957 title "Synthesis and Reactivity of Ruthenium Phosphite Indenylidene Complexes" @default.
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