129196-81-2Relevant academic research and scientific papers
Palladium-catalyzed amidation-hydrolysis reaction of gem-dihaloolefins: Efficient synthesis of homologated carboxamides from ketones
Ye, Wenchao,Mo, Jun,Zhao, Tiankun,Xu, Bin
supporting information; experimental part, p. 3246 - 3248 (2009/12/01)
A simple and efficient palladium-catalyzed amidation-hydrolysis reaction has been developed to afford N-aryl monosubstituted carboxamides in good to excellent yields from easily accessible ketone-derived gem-dihaloolefins and aryl amines.
Nickel(0) induzierte und katalysierte CC-Verknuepfungen zwischen Phenylisocyanat und vinylsubstituierten Heteroaromaten
Hoberg, Heinz,Guhl, Dieter,Betz, Peter
, p. 233 - 246 (2007/10/02)
Vinyl substituted heterocycles such as 2-vinylfuran (Ia) and 2-vinylpyridine (Ib) react with phenylisocyanate (II) in presence of (Lig)Ni0 (Lig = TCP) to form the tricyclohexylphosphane-5-azanickelacyclopentan-4-one derivatives (V).The structures and properties of these metallacycles are described.A catalytic 1/1 CC bond formation to give the α,β-unsaturated carboxylic acid amide X proceeds only with Ia (Lig = P(OiP)3) and not with Ib (Lig = PEt3, PPh3, P(OiP)3).Presumably, the different reactivities are not caused by electronic and/or steric factors of the 2-furyl- or 2-pyridyl-substituents, but by the donor properties of the N-atom in Ib.The N Ni interactions in the complex bis2-2-vinyl-μ-pyridine-nickel> (XIIb) can be detected by spectroscopic and crystal structure studies.
