Journal of the Chemical Society, Part 3Chemical Society., 1949 |
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Results 1-3 of 83
Page 1680
... crystallised from ethanol , crystallisation being induced by nucleation with the original specimen ; this gave part of the unaltered original material ( 626 mg . ) , m . p . 193-194 ° . The mother - liquor , by complete evaporation in a ...
... crystallised from ethanol , crystallisation being induced by nucleation with the original specimen ; this gave part of the unaltered original material ( 626 mg . ) , m . p . 193-194 ° . The mother - liquor , by complete evaporation in a ...
Page 1923
... crystallised from alcohol , giving colourless needles of the hydroxy - triazole ( 1 · 1 g . ) , m . p . 324 ° not depressed by the compound as prepared above ( Found : C , 59-4 ; H , 4.4 % ) . The acetate , prepared as previously ...
... crystallised from alcohol , giving colourless needles of the hydroxy - triazole ( 1 · 1 g . ) , m . p . 324 ° not depressed by the compound as prepared above ( Found : C , 59-4 ; H , 4.4 % ) . The acetate , prepared as previously ...
Page 2037
... crystallised from light petroleum , cooled in acetone containing solid carbon dioxide , in needles , m . p . 2 · 5—4.5 ° , and B - o - chlorophenoxypropionic acid ( 7.5 g . ) which crystallised from aqueous methanol in needles , m . p ...
... crystallised from light petroleum , cooled in acetone containing solid carbon dioxide , in needles , m . p . 2 · 5—4.5 ° , and B - o - chlorophenoxypropionic acid ( 7.5 g . ) which crystallised from aqueous methanol in needles , m . p ...
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Common terms and phrases
acetic acid acetic anhydride acetone acetyl added admixture alkaline alkyl aluminium chloride Amer ammonia aqueous solution atoms barium benzene boiling bromine Calc carbinol carbon catalyst Chem Chim chloroform colourless needles compound concentrated condensation cooled crystals cyclohexene decomp derivatives dilute dioxan dissolved distilled dithizone dried equiv ester ethanol ethyl acetate ethyl alcohol ethylene evaporated EXPERIMENTAL filtered filtrate formed Found fraction gave give heated under reflux hydrocarbon hydrochloric acid hydrogen chloride hydrolysis iodide ions isolated ketone Light absorption light petroleum b. p. method methyl mixed m. p. mixture molecule obtained oxide phenyl plates potassium hydroxide precipitated prepared pressure prisms pyridine Q-enzyme R₁ R₂ reaction reagent reduced removed requires residue room temperature salt semicarbazone separated sodium hydroxide solid soluble solvent specimen structure substance sulphate sulphone sulphuric acid synthesis Table unsaturated washed yield