Quarterly Journal of the Chemical Society of London |
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Page 3205
... cyclohexane showed a far greater bathochromic shift than could be due to a normal solvent effect , and corresponded closely to that of 4 - hydroxy - 6 - mercaptopyrimidine in ethanol or water ( Fig . 1 ) . 3 601 4.0 3.5 3.0 250 270 290 ...
... cyclohexane showed a far greater bathochromic shift than could be due to a normal solvent effect , and corresponded closely to that of 4 - hydroxy - 6 - mercaptopyrimidine in ethanol or water ( Fig . 1 ) . 3 601 4.0 3.5 3.0 250 270 290 ...
Page 3207
... cyclohexane . § In ethanol . ¶ Spectrum of neutral molecule necessarily in buffered 5 % ethanolic water . Measured pK , of ca. 1 clearly inaccurate . ** In dioxan ; low solubility makes a value unreliable . †† Equilibrium pK . ( see ...
... cyclohexane . § In ethanol . ¶ Spectrum of neutral molecule necessarily in buffered 5 % ethanolic water . Measured pK , of ca. 1 clearly inaccurate . ** In dioxan ; low solubility makes a value unreliable . †† Equilibrium pK . ( see ...
Page 3405
... cyclohexane gave an organic phase 0-124m in hydrogen peroxide . Spectrophotometry . — All measurements were made in a Unicam S.P. 500 instrument ; 4 - cm . glass cells ( capacity 12 ml . ) were held in a thermostated cell - holder at ...
... cyclohexane gave an organic phase 0-124m in hydrogen peroxide . Spectrophotometry . — All measurements were made in a Unicam S.P. 500 instrument ; 4 - cm . glass cells ( capacity 12 ml . ) were held in a thermostated cell - holder at ...
Contents
NO PAGE | 2842 |
Mechanism of benzidine and semidine rearrangements Part XV A collective | 2864 |
By DAVID PETERS | 2901 |
Copyright | |
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absorption acetic acid acetone added adduct alcohol alkyl Amax Amer anhydride aqueous aromatic atom atomic orbitals band benzene bond bromine Calc carbon carbonyl cation CH₂ Chem chloroform chromatography cm.¹ complex compound concentration constant crystallised cyclohexane decomp decomposition derivatives dilute dimethyl distilled dried effect electron ester ethanol ether evaporated extracted filtered filtrate formation formed Found fraction gave give heated hydride hydrogen hydrolysis hydroxide infrared infrared spectrum iodide ionisation energies isomer kinetic light petroleum b. p. lithium lithium aluminium hydride mechanism methyl mixed m. p. mixture mole molecular molecule nitric oxide nitrogen Nujol observed obtained oxidation perchlorate phenyl potassium prepared proton pyridine reaction rearrangement reduced refluxed requires residue room temperature salt sodium sodium hydroxide solid solution solvent spectra steric steric effect structure substitution sulphate Table thionyl chloride transition ultraviolet values Vmax yield