Copper-Catalyzed coupling of oxime acetates with aldehydes: A new strategy for synthesis of pyridines
Copper-catalyzed coupling of oxime acetates with aldehydes offers a new strategy for the synthesis of highly substituted pyridines. This novel method tolerates a wide range of functionality and allows for rapid elaboration of the oxime acetates into a variety of substituted pyridines.
Pyrylium Compounds. XXI. - Structure and Tautomerism of Pseudobases of Unsymmetrically Substituted 2,4,6-Triarylpyrylium Salts
Hydrolytic ring opening of unsymmetrically substituted 2,4,6-triarylpyrylium salts 11 results in a mixture of two tautomeric pseudobases, the penten-1,5-diones 13 and 14.In crystalline state as a rule one of these tautomers markedly predominates, whereas
Fischer, Gerhard W.,Herrmann, Michael
p. 287 - 302
(2007/10/02)
Studies on Cycloimmonium Ylides. Synthesis of Some 2,4,6-Triaryl-Substituted Pyridines via Isoquinolinium Ylides
(Aroylmethylene)isoquinolinium ylides on their reaction with different α,β-unsaturated ketones gave a wide variety of 2,4,6-triaryl-substituted pyridines which are expected to possess some potential biological activities.The reaction seemed to proceed via
Tewari, R. S.,Dubey, A. K.
p. 91 - 92
(2007/10/02)
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