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Unsymmetrical β-diketones, monothio-β-diketones and their nickel(II) and cobalt(III) complexes

✍ Scribed by Manoranjan Das; Daniel T. Haworth

Publisher
Springer
Year
1996
Tongue
English
Weight
471 KB
Volume
21
Category
Article
ISSN
0340-4285

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✦ Synopsis

Unsymmetrically substituted//-diketones, RCOCH2COR' (R and R'= aryl) have been synthesized and used to prepare their monothio-fi-diketone derivatives. Because of the similar basicities of the carbonyl oxygen due to the electronic effects of the R and R' groups, a mixture of the monothio-fl-diketones, RCSCHzCOR' and R'CSCH 2-COR, is formed. Several of the monothio-/~-diketones have been used to prepare their corresponding Ni H and Co I1 complexes. Mass spectral and 13C-n.m.r. data are used to confirm the formation of isomers of the monothiofl-diketonate ligands and their metal complexes.

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