Obituary

Clement, Roland C.

doi:10.2307/4084503

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2002

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“…12,[14][15][16][17] To some extent the results obtained were predicted, as in the reactions of one of the -C=C groups in acetylenes was changed for nitrile group -C=N. A formation of benzene 16 was observed in the reactions in the absence of nitrile (RCN).…”

Section: Introductionmentioning

confidence: 87%

Metal complex catalysis in a synthesis of pyridine bases

Джемилев¹,

Selimov²,

Толстиков³

2002

Arkivoc

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The review systematizes for the first time literature data of the last 15 years on a synthesis of pyridine bases including those of natural structure with the use of metal complex catalysts. The catalyzed by complexes of transition metals (Co, Ni, Pd, Zr) and rare-earth elements reactions of heterocyclization of acetylenes with nitriles, liquid phase condensation of aldehydes with amines, linear and cyclic oligomerization of vinylpyridines with 1,3-dienes and condensation of carbonic acid chloroanhydrides with olefins, acetylenes, tertiary alcohols to give substituted pyridines, quinolines and phenanthrolines of a set structure are considered. The mechanisms of molecule generation of pyridine bases in the presence of metal complex catalysts are discussed, and data on an effect of transition metal nature, initial monomer structure and reaction conditions on a reaction direction of a formation of six-membered nitrogen heterocycles are listed.

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