Nickel‐catalyzed Cyclotrimerization of Malononitrile: The Dicyanomethanide‐bridged, Anionic Ni  II   Complex [{Ni(C 5 F 5 ) 2 (μ‐NCCHCN)} 2 ] 2⊖ | Zendy

López Gregorio | Zendy; Sánchez Gregorio | Zendy; Garciá Gabriel | Zendy; Ruiz José | Zendy; García Joaquín | Zendy; MartínezRipoll M. | Zendy; Vegas A. | Zendy; Hermoso Juan A. | Zendy

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Nickel‐catalyzed Cyclotrimerization of Malononitrile: The Dicyanomethanide‐bridged, Anionic Ni II Complex [{Ni(C 5 F 5 ) 2 (μ‐NCCHCN)} 2 ] 2⊖

Author(s) -

López Gregorio,

Sánchez Gregorio,

Garciá Gabriel,

Ruiz José,

García Joaquín,

MartínezRipoll M.,

Vegas A.,

Hermoso Juan A.

Publication year - 1991

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199107161

Subject(s) - malononitrile , nickel , catalysis , pyridine , chemistry , salt (chemistry) , derivative (finance) , polymer chemistry , ion , medicinal chemistry , organic chemistry , financial economics , economics

A remarkable twelve‐membered heterocycle is present in the title complex anion 1 . It is formed in the reaction of the NBu 4 salt of the corresponding hydroxo‐bridged anion with malonitrile in the molecular ratio 1:2. Catalytic amounts of the Ni compound, on the other hand, effect a cyclotrimerization of the malonitrile, leading to a highly functionalized pyridine derivative.

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