Quarterly Journal of the Chemical Society of London, Volume 8, Pages 1365-2022 |
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Page 1682
... formation at pk Values for cation showing unusually large displacements of the 8 - H signal . Cation formation in xanthines may proceed by attach- ment of a proton either to a nitrogen in the imidazole ring or to the 6 - carbonyl group ...
... formation at pk Values for cation showing unusually large displacements of the 8 - H signal . Cation formation in xanthines may proceed by attach- ment of a proton either to a nitrogen in the imidazole ring or to the 6 - carbonyl group ...
Page 1686
... formation of addition compounds with the alkyl radicals and by reduction to quinol . In the presence of oxygen quinone would be regenerated from semiquinone radicals , and since oxygen would also scavenge the alkyl radicals , the formation ...
... formation of addition compounds with the alkyl radicals and by reduction to quinol . In the presence of oxygen quinone would be regenerated from semiquinone radicals , and since oxygen would also scavenge the alkyl radicals , the formation ...
Page 1772
... formation of cyclic ambident cations or a tautomeric pair of carbonium ions ( Scheme 1 ) . [ CH2n RIC [ CH2In R 1 CL . R [ CH2 than the normal acid chlorides . In this case involvement of a [ 3,2,1 ] bicyclic pathway has been postulated ...
... formation of cyclic ambident cations or a tautomeric pair of carbonium ions ( Scheme 1 ) . [ CH2n RIC [ CH2In R 1 CL . R [ CH2 than the normal acid chlorides . In this case involvement of a [ 3,2,1 ] bicyclic pathway has been postulated ...
Contents
Organic chemistry | 1365 |
Substituted oxindoles Part IV 3Alkylation of 1methylindol23Hone 1methyloxindole | 1375 |
Contents iii | 1377 |
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1-phosphate absorption acetic acid acetic anhydride acetone added adduct alcohol alkyl Amer amine anhydride anhydrous aqueous aromatic atom benzene bromide Calc carbonyl CH₂ Chem chloride chloroform chromatography cm.¹ compound conj cooled crystallised cyclohexanone cyclopentadiene derivatives deuterium diene dimethyl dimethylbutadiene distilled dried eluted ester ethanol ethyl acetate evaporated extracted with ether filtered Found fraction gave give heated under reflux hydrazine hydride hydrochloric hydrogen carbonate hydrolysis hydroxide i.r. spectrum iodide isolated isomer ketone light petroleum mass spectrum methyl methylene mixed m.p. mmHg mole n.m.r. spectrum needles nitrogen obtained olefin oxalylindene oxide petroleum petroleum b.p. phosphate potassium prepared protons pyridine quinone reaction rearrangement reduced pressure requires residue ring room temperature showed silica gel sodium sodium hydroxide solid solution solvent spectra structure substituent Table washed yellow yield