76671-69-7Relevant academic research and scientific papers
OXIDATION OF 1,2,3,4,6,-SUBSTITUTED PYRIDINIUM SALTS WITH FERRICYANIDE
Nesvadba, Petr,Kuthan, Josef
, p. 543 - 548 (2007/10/02)
Quaternary pyridiniun salts IIa-IId are oxidized with alkaline solution of potassium ferricyanide to give a mixture of pyrrole derivatives Ia-Ib and IVa-IVd.The quaternary salt IIeunder the same conditions affords a mixture of compouns IVe and V vhereas I
OXIDATION OF POLYSUBSTITUTED PYRIDINIUM SALTS
Nesvadba, Petr,Kuthan, Josef
, p. 1494 - 1502 (2007/10/02)
Oxidation of 1-substituted 2,4,6-triphenylpyridinium salts Ia-Ij with potassium ferricyanide in an alkaline medium was accompanied by contraction of the pyridine ring and formation of 1,2,3,5-tetrasubstituted pyrroles II.The derivative IIf underwent facil
Oxidation of 1-substituted 2,4,6-triphenylpyridinium salts
Nesvadba, Petr,Kuthan, Josef
, p. 3727 - 3728 (2007/10/02)
During the oxidation of 1,2,4,6-tetrasubstituted pyridinium salts 1 with potassium hexacyanoferrate(III) in alkali medium a contraction of pyridine ring is observed leading to 1,2,3,5-tetrasubstituted pyrroles 2.
