Journal of the Chemical SocietyThe Society., 1949 |
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Page 236
... yellow sublimate which formed on the walls of the reaction tube was extracted with hot benzene and on concentration of the benzene extract , yellow crystals of the anil were obtained ( m . p . 199 ° and mixed m . p . ) . ( b ) Similarly ...
... yellow sublimate which formed on the walls of the reaction tube was extracted with hot benzene and on concentration of the benzene extract , yellow crystals of the anil were obtained ( m . p . 199 ° and mixed m . p . ) . ( b ) Similarly ...
Page 343
... yellow band eluted . 4 - Benzoylfluoranthene was thus obtained which crystallised from ethanol in yellow needles , m . p . 129-130 ° . Chromic acid ( " A.R. " , 1 · 40 g . ) in water ( 1 c.c. ) and glacial acetic acid ( 1 c.c. ) was ...
... yellow band eluted . 4 - Benzoylfluoranthene was thus obtained which crystallised from ethanol in yellow needles , m . p . 129-130 ° . Chromic acid ( " A.R. " , 1 · 40 g . ) in water ( 1 c.c. ) and glacial acetic acid ( 1 c.c. ) was ...
Page 344
... yellow needles ( from ethanol ) , showing no m . p . depression when mixed with the higher melting isomer from the ... yellow fluorescent band resulted , and were successively collected in the filtrate . The first blue band gave 0 · 09 g ...
... yellow needles ( from ethanol ) , showing no m . p . depression when mixed with the higher melting isomer from the ... yellow fluorescent band resulted , and were successively collected in the filtrate . The first blue band gave 0 · 09 g ...
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Common terms and phrases
absorption acetic acid 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 concentrated condensation cooled crystallised crystals curve cyanide D.Sc 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 requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure sulphate sulphide sulphone sulphuric acid thionyl chloride washed yellow yield