Bidentate alkene aminocarbene complexes of chromium: Alkyne insertion with ring expansion versus alkyne insertion with cyclopropanation: Formation and crystal structure of a dihydroazepinechromium tricarbonyl complex

Autor:	A. Parlier, R. Yefsah, Jacqueline Vaissermann, Michele Rudler, Jean-Claude Daran, H. Rudler
Rok vydání:	1990
Předmět:	chemistry.chemical_classification Denticity Alkene Cyclopropanation Stereochemistry Organic Chemistry Alkyne Crystal structure Biochemistry Heptene Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound chemistry Materials Chemistry Physical and Theoretical Chemistry Carbene Diphenylacetylene
Zdroj:	Journal of Organometallic Chemistry. 381:191-204
ISSN:	0022-328X
DOI:	10.1016/0022-328x(90)80112-d
Popis:	Whereas (CO) 4 CrC(H)N(CH 3 ) (η 2 -CH 2 CHCH 2 ) ( 3 ) reacts with diphenylacetylene to give the expected azabicyclo[4.1.0]heptene complex ( 6 ), (CO) 4 CrC(CH 3 )N(CH 2 CHCH 2 )(η 2 -NCH 2 CHCH 2 ) ( 12 ) and (CO) 4 CrC(CH 3 )N(CH 2 Ph) (η 2 -CH 2 CHCH 2 ) ( 9 ) give, along with the azabicyclo[4.1.0]heptene complexes, the new dihydroazepine η 3 -Cr(CO) 3 complexes, the complex with a CH 2 Ph group has been fully characterized by X-ray diffraction. A mechanism for the formation of the η 3 complexes is suggested.
Databáze:	OpenAIRE
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