ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Benzyl Nickel(II) Complexes and their ReactionsBy the oxydative addition of p-substituted benzyl chlorides to (Ph3P)2Ni(C2H4) at -20°C the violet nickel(II) complexes (Ph3P)2Ni(p-CH2C6H4R)Cl (R = CN, COOH, CH3, Cl) are, formed. In water containing solutions the carbonic acid (Ph3P)2Ni(p-CH2C6H4COOH)Cl is rearranged to the corresponding p-methylbenzoate.With carbon dioxide the complexes (Ph3P)2Ni(p—CH2C6H4R)Cl react like Grignard compounds. Diphenyl ethine and butadien-1,3 are inserted in the Ni - C bond at room temperature. Substituted nickel-σ-vinyl or π-allyl complexes are obtained. The reactivity of the nickel-σ-benzyl compounds is compared with that of other nickel(II)-alkyl compounds.
Notes:
Die oxydative Addition von p-substituierten Benzylchloriden an (Ph3P)2—Ni(C2H4) bei -20°C ergibt die violetten Nickel(II)-Komplexe (Ph3P)2Ni(p—CH2C6H4R)Cl (R = CN, COOH, CH3, Cl). Die Carbonsäure (Ph3P)2Ni(p—CH2C6H4COOH)Cl lagert sich in Gegenwart von Wasser in das entsprechende p-Methylbenzoat ein.Die Verbindungen des Typs (Ph3P)2Ni(p—CH2C6H4R)Cl reagieren mit Kohlendioxid grignardanalog. Diphenylethin und Butadien-1,3 werden bei normaler Temperatur in die Ni - C-Bindung eingeschoben. Dabei entstehen substituierte Nickel-σ-vinyl- bzw. π-allyl-Komplexe. Das Reaktionsverhalten der Nickel-σ-benzylverbindungen wird mit dem anderer Nickel(II)-alkylverbindungen verglichen.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19845100303
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