Quarterly Journal of the Chemical Society of London, Volume 16, Pages 2739-3518 |
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Page 2834
... reagent is ap- parently capable of generating phenoxonium ion inter- mediates in certain cases.4 The reactivities of these and other reagents differ , and vary greatly depending upon the particular phenol involved , with the result that ...
... reagent is ap- parently capable of generating phenoxonium ion inter- mediates in certain cases.4 The reactivities of these and other reagents differ , and vary greatly depending upon the particular phenol involved , with the result that ...
Page 2867
... Reagent Sys- tem for the N - Oxidation of Weakly Basic N - Heteroaromatic Compounds By G. E. Chivers and H. Suschitzky , * Departments of Chemistry and Applied Chemistry , University of Salford Salford M5 4WT , Lancs . A mixture of ...
... Reagent Sys- tem for the N - Oxidation of Weakly Basic N - Heteroaromatic Compounds By G. E. Chivers and H. Suschitzky , * Departments of Chemistry and Applied Chemistry , University of Salford Salford M5 4WT , Lancs . A mixture of ...
Page 2869
... reagents . However , 3,5 - dichlorotrifluoropyridine and pentafluoropyridine could not be N - oxidised with this reagent system . Under mild conditions starting material was recovered while on heating ring fission occurred and ammonia ...
... reagents . However , 3,5 - dichlorotrifluoropyridine and pentafluoropyridine could not be N - oxidised with this reagent system . Under mild conditions starting material was recovered while on heating ring fission occurred and ammonia ...
Contents
Organic chemistry | 2739 |
Cyclic quaternary ammonium salts Part VIII Imidazo12apyrazinium salts | 2748 |
Reactions of pyridine Noxides with 36dichloropyridazine | 2756 |
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2-pyridyl acetic acid acetic anhydride acetone acetonitrile added adduct Amer amine anhydride aqueous aromatic azide benzene benzyl bromide Calc carbon CH₂ Chem Chemical chloride chloroform chromatographed cm¯¹ cm¹ CO₂H compound crystallised cyclisation decomp derivative dimethyl dimethylformamide distilled doublet dried elution ester ethanol ether ethyl acetate EtOH evaporated extracted filtered filtrate Found fraction gave give heated under reflux hydrazone hydride hydrochloric hydrogen hydrolysis hydroxide i.r. spectrum isolated ketone light petroleum lithium aluminium hydride mass spectra methyl methylene mixed m.p. mixture mmHg mmol mmoles N-oxide n.m.r. spectra needles nitrogen obtained oxidation petroleum b.p. Ph Ph phenol phosphite potassium prepared protons pyridine reaction reagent rearrangement requires residue ring room temperature signals silica gel sodium sodium hydroxide solid solution solvent stirred structure synthesis Tetrahedron triethyl phosphite washed yield