Polymeric manganese(II) and nickel(II) pyrazolates: synthesis, characterization, and magnetochemistry
Article Abstract:
Direct reactions of manganocene and nickelocene with molten pyrazoles under vacuum or in an inert atmosphere have made it possible to isolate a number of metal pyrazolate compounds. Indirect evidence indicates that the compounds have extended chain structures with metal ions linked by double-bridging pyrazolates. Two of the compounds are diamagnetic and the others paramagnetic. Antiferromagnetic coupling exists between neighboring metal ions, based on findings of variable temperature magnetic susceptibility studies on the paramagnetic compounds.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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Palladium-catalyzed cross-coupling reactions of organoboron compounds
Article Abstract:
The interaction between organoboron reagents and organic halides or related electrophiles follow the palladium-catalyzed cross-coupling reactions. These reactions lead to carbon framework of target molecules and nontoxic byproducts, under mild conditions. The sequential steps of the reaction are oxidative addition, transmetalation, and reductive elimination sequences. Alkyl, allylic, 1-alkenyl, aryl, and 1-alkynyl compounds react with aryl- and 1-alkenylboron reagents in the presence of palladium.
Publication Name: Chemical Reviews
Subject: Chemistry
ISSN: 0009-2665
Year: 1995
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Free-radical reactions in the synthesis of alpha-amino acids and derivatives
Article Abstract:
The use of free-radical reactions in the synthesis of alpha-amino acids and their derivatives are enumerated and discussed. Among the classes of free radicals that are synthesized from amino acids and their derivatives which include sulfur radicals, aromatic radicals and aliphatic radicals, only the alpha-carbon-centered aliphatic radicals are peculiar to these molecules and their derivatives.
Publication Name: Chemical Reviews
Subject: Chemistry
ISSN: 0009-2665
Year: 1997
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