Journal of the Chemical SocietyThe Society., 1958 |
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Page 2697
... ( decomp . ) , and ( iii ) yellowish crystals , decomp . 220-230 ° . Further crystallisation of fractions ( i ) and ( ii ) gave needles , m . p . 258-260 ° ( decomp . ) , [ a ] 19-69 ° ± 3 ° ( c 1 · 11 in EtOH ) of the ketol ( VI ) ...
... ( decomp . ) , and ( iii ) yellowish crystals , decomp . 220-230 ° . Further crystallisation of fractions ( i ) and ( ii ) gave needles , m . p . 258-260 ° ( decomp . ) , [ a ] 19-69 ° ± 3 ° ( c 1 · 11 in EtOH ) of the ketol ( VI ) ...
Page 2698
... ( decomp . ) ] and crystallised from ethyl methyl ketone , giving prisms of the anhydride ( XII ) , m . p . 285–287 ° ( decomp . ) . Fractional crystallisation of the methanol - soluble fraction ( above ) from ethyl acetate and ethyl ...
... ( decomp . ) ] and crystallised from ethyl methyl ketone , giving prisms of the anhydride ( XII ) , m . p . 285–287 ° ( decomp . ) . Fractional crystallisation of the methanol - soluble fraction ( above ) from ethyl acetate and ethyl ...
Page 2778
... ( decomp . ) after crystallisation from much hot water ( Found : C , 18-7 ; H , 4.1 ; N , 7.2 . CH16N , Br2Pd requires C , 18-8 ; H , 4-2 ; N , 7.3 % ) . These two compounds are sparingly soluble in hot water , very slightly soluble in ...
... ( decomp . ) after crystallisation from much hot water ( Found : C , 18-7 ; H , 4.1 ; N , 7.2 . CH16N , Br2Pd requires C , 18-8 ; H , 4-2 ; N , 7.3 % ) . These two compounds are sparingly soluble in hot water , very slightly soluble in ...
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