Journal of the Chemical Society, Part 1Chemical Society., 1949 |
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Page 41
... cooled product was made alkaline with sodium carbonate and extracted with benzene . The neutral fraction ( 40 mg . ) left as a yellow solid after removal of the solvent was dissolved in a little benzene and filtered through a column of ...
... cooled product was made alkaline with sodium carbonate and extracted with benzene . The neutral fraction ( 40 mg . ) left as a yellow solid after removal of the solvent was dissolved in a little benzene and filtered through a column of ...
Page 45
... cooled and acidified with hydrochloric acid , and the precipitate obtained was crystallised from light petroleum ( b . p . 40-60 ° ) , giving a - p - tolylisobutyric acid ( 0.17 g . ) as colourless prisms , m . p . 82 ° ( Found : C , 74 ...
... cooled and acidified with hydrochloric acid , and the precipitate obtained was crystallised from light petroleum ( b . p . 40-60 ° ) , giving a - p - tolylisobutyric acid ( 0.17 g . ) as colourless prisms , m . p . 82 ° ( Found : C , 74 ...
Page 645
... cooled melt was crystallised from acetic acid and then from ethanol . product separated in buff prisms from ethanol ( 8.2 g . ) , m . p . 142 ° ( Found : C , 75-6 ; H , 6 · 7 ; N , 8-0 . CH ,, O , N , requires C , 75-5 ; H , 6-6 ; N ...
... cooled melt was crystallised from acetic acid and then from ethanol . product separated in buff prisms from ethanol ( 8.2 g . ) , m . p . 142 ° ( Found : C , 75-6 ; H , 6 · 7 ; N , 8-0 . CH ,, O , N , requires C , 75-5 ; H , 6-6 ; N ...
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Common terms and phrases
absorption acetic anhydride acetone added addition alkaline aluminium aluminium chloride Amer ammonia anhydride atom benzene boiling bond bromide Calc carbon catalyst CH₂ Chem chloroform colourless needles compound concentration condensation cooled crystallised crystals curve cyanide decomp decomposition derivatives dilute dissolved distilled disulphide dried ester ethyl acetate ethyl alcohol ethylene evaporated extracted with ether filtered filtrate formed Found fraction gave give m. p. heated hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone kojic acid light petroleum b. p. m. p. and mixed methanol method mixed m. p. mixture molecule obtained oxide phenyl picrate potassium hydroxide precipitated prepared prisms pyridine reaction reagent reduced pressure refluxed removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure sulphate sulphide sulphone sulphuric acid thionyl chloride washed yellow yield