CC-verknüpfung von alkenen mit isocyanaten am nickel(0

Autor:	Klaus Sümmermann, Heinz Hoberg, Armin Milchereit
Rok vydání:	1985
Předmět:	Reaction mechanism Ethylene Organic Chemistry Tricyclohexylphosphine Metallacycle Biochemistry Medicinal chemistry Coupling reaction Inorganic Chemistry Propene chemistry.chemical_compound chemistry Yield (chemistry) Materials Chemistry Organic chemistry Physical and Theoretical Chemistry Aliphatic compound
Zdroj:	Journal of Organometallic Chemistry. 288:237-248
ISSN:	0022-328X
DOI:	10.1016/0022-328x(85)87282-x
Popis:	Isocyanates react with alkenes, e.g. ethylene and propene, in a CC bond forming reaction on ligand-nickel(O) systems to yield azanickelacyclopentanones. These metallacycles have been characterized spectroscopically, and their reaction behaviour is discussed. The regioisomeric distribution of the CC coupling reaction is reported for the reaction with propene. The azanickelacyclopentanones obtained from isocyanates and alkenes react further with ethylene to give ring expansion, whereupon β-elimination to unsaturated amides follows.
Databáze:	OpenAIRE
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