Ruthenium(II)−MeO−Biphep−Arene Dications: Acetylene Reactions and Unexpected Cyclometalation

Autor:	Carolien J. den Reijer, Paul S. Pregosin, and Daniela Drago
Rok vydání:	2001
Předmět:	Diphenylphosphine Chemistry Organic Chemistry chemistry.chemical_element Photochemistry Medicinal chemistry Catalysis Ruthenium Inorganic Chemistry chemistry.chemical_compound Acetylene Phenylacetylene Physical and Theoretical Chemistry Benzene Derivative (chemistry) Benzoic acid
Zdroj:	Organometallics. 20:2982-2989
ISSN:	1520-6041 0276-7333
DOI:	10.1021/om010102d
Popis:	Reactions of [Ru(arene)(MeO−Biphep)](SbF6)2 (arene = p-cymene, 4, or benzene, 5; MeO−Biphep = (6,6‘-dimethoxybiphenyl-2,2‘-diyl)bis(diphenylphosphine)) with several terminal acetylene compounds lead to products derived from cyclometalation of one of the P-phenyl rings, followed by insertion of the acetylene derivative into the new Ru−C bond. The solid-state structure of one of these compounds, an η6-benzene complex derived from phenylacetylene, has been determined by X-ray diffraction. The dicationic complexes 4 and 5 catalyze the reaction of benzoic acid with 1-pentyne or 1-octyne to form enol-ester organic products. Using octyne-d1, deuterium-labeling experiments show scrambling of the deuterium atom. A new Ru−carbene complex was prepared and used in the catalytic reaction.
Databáze:	OpenAIRE
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