Quarterly Journal of the Chemical Society of London |
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Page 3003
... fraction of b . p . 60-80 ° . Organic extracts were dried with megnesium sulphate . 9 Methyl 14 - Isopropyl - 13 ... fraction A ( 51 mg . ) ; v ( Nujol ) 1724s , 1670m , and 1712sh cm. ̄1 . Further elution with the same solvent ( 700 ml ...
... fraction of b . p . 60-80 ° . Organic extracts were dried with megnesium sulphate . 9 Methyl 14 - Isopropyl - 13 ... fraction A ( 51 mg . ) ; v ( Nujol ) 1724s , 1670m , and 1712sh cm. ̄1 . Further elution with the same solvent ( 700 ml ...
Page 3340
Chemical Society (Great Britain). Time ( hr . ) Fraction 2 Fraction 3 Fraction 4 TABLE 4 . Moles of periodate reduced per C - anhydro - unit . 21 51 72 96 120 0.246 0.269 0.280 0-301 0.301 0.162 0.162 0.178 0.198 0.199 0.240 0.260 0.260 ...
Chemical Society (Great Britain). Time ( hr . ) Fraction 2 Fraction 3 Fraction 4 TABLE 4 . Moles of periodate reduced per C - anhydro - unit . 21 51 72 96 120 0.246 0.269 0.280 0-301 0.301 0.162 0.162 0.178 0.198 0.199 0.240 0.260 0.260 ...
Page 3343
... fractions were separated by elution with potassium chloride ( 0.025—1.5m ; 1.5 1. of each ) ( see Table 2 ) . Examination of the Four Fractions . - A portion of each fraction was hydrolysed ( N - sulphuric acid , 100 ° , 6 hr . ) and ...
... fractions were separated by elution with potassium chloride ( 0.025—1.5m ; 1.5 1. of each ) ( see Table 2 ) . Examination of the Four Fractions . - A portion of each fraction was hydrolysed ( N - sulphuric acid , 100 ° , 6 hr . ) and ...
Contents
NO PAGE | 2842 |
Mechanism of benzidine and semidine rearrangements Part XV A collective | 2864 |
By DAVID PETERS | 2901 |
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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