Journal of the Chemical SocietyThe Society., 1958 |
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Results 1-3 of 72
Page 2651
... room temperature . The solution was adjusted to pH 6 with 1.88N - potassium hydroxide in methanol ( 25.5 ml . ) , and the solvent was evaporated under reduced pressure at room temperature . The gum was dissolved in ether , which was ...
... room temperature . The solution was adjusted to pH 6 with 1.88N - potassium hydroxide in methanol ( 25.5 ml . ) , and the solvent was evaporated under reduced pressure at room temperature . The gum was dissolved in ether , which was ...
Page 2700
... room temperature and pressure in the presence of Adams catalyst ( 200 mg . ) . Uptake of hydrogen ceased after the absorption of 1 · 05 mol . in 30 min . , and crystals of the product separated . The mixture was filtered . Evaporation ...
... room temperature and pressure in the presence of Adams catalyst ( 200 mg . ) . Uptake of hydrogen ceased after the absorption of 1 · 05 mol . in 30 min . , and crystals of the product separated . The mixture was filtered . Evaporation ...
Page 2721
... room temperature . It will be shown that these impurities would not interfere with the rate determinations . The rate of the reaction could be measured over the range where the pseudo - first order rate constant , k , was between 10 - 1 ...
... room temperature . It will be shown that these impurities would not interfere with the rate determinations . The rate of the reaction could be measured over the range where the pseudo - first order rate constant , k , was between 10 - 1 ...
Contents
Chemical applications of nuclear quadrupole resonance spectroscopy Part | 2634 |
541 | 2637 |
the isomerisation of normal to isosapogenins | 2645 |
114 other sections not shown
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Common terms and phrases
absorption acetic acid acetic anhydride acetone acetylene activation energy added alkaline alkyl allogibberic alumina Amer amine atom benzene boiling bond bromine Calc carbon cation CH₂ Chem chloride chloroform chromatographed colourless compound concentrated containing cooled crystallised from ethanol crystals curves cyclic sulphide cyclohexene decomp derivative dilute dimethylformamide diphenylene dissolved distilled disulphide dried eluted ester ethanol ether evaporated extracted filtered filtrate formation Found fraction gave give heated hydrochloric acid hydrogen pressure hydrogen sulphide hydrogenolysis hydrolysis infrared spectrum iodide iodine ketone light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole molecule needles nitric acid nitrogen obtained olefin oxide picrate polysulphide potassium hydroxide precipitated prepared prisms pyridine reaction reduction reflux requires residue room temperature saturated sodium hydroxide solid solvent spectra substituent sulphuric acid synthesis thiol ultraviolet vacuo washed yellow yield