ISSN:
1572-901X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary Phenylacetylene reacts stoichiometrically or in excess with the Ru—H bond of RuH(CO)(PPh3)2(L) (LH = 2-hydroxypyridine, 2-hydroxy-6-methylpyridine, acetylacetone, benzoylacetone, 2-hydroxyacetophenone, 2-hydroxypropiophenone, 2-hydroxybenzophenone and 4-methoxy-2-hydroxybenzophenone) in boiling benzene to give σ-vinylic or σ-vinylalkynyl complexes of the type Ru(CO)-(PPh3)2(L)(CH $$ = $$ CHPh) and Ru(CO)(PPh3)2(L){C-(C $$ \equiv $$ CPh) $$ = $$ CHPh} in good yield. The vinylic complex can also be obtained by reacting the sodio derivative of the chelating ligand with the 16e− unsaturated complex, [Ru(CO)Cl(CH $$ = $$ CHPh)(PPh3)2], in CH2Cl2/MeOH mixture at ambient temperature. These complexes have been characterized by elemental analyses, and i.r., 1H, 13C and 31P n.m.r. spectroscopy.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00208181
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