Journal of the Chemical Society, Part 1Chemical Society., 1949 |
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Results 1-3 of 76
Page 280
... room temperature . If less than the theoretical amount of thiourea is used , pure urea is obtained by evaporation of the aqueous filtrate . 1 - Benzoyl - 2 - m - nitrophenylethylene oxide ( 1 g . ) and thiourea ( 2.5 g . ) are heated ...
... room temperature . If less than the theoretical amount of thiourea is used , pure urea is obtained by evaporation of the aqueous filtrate . 1 - Benzoyl - 2 - m - nitrophenylethylene oxide ( 1 g . ) and thiourea ( 2.5 g . ) are heated ...
Page 287
... room temperature , but is much slower than that of cyclohexene sulphide . Propylene sulphide . Propylene sulphide , left at room temperature with a moderate excess of dry methyl iodide , deposits a white , unstable , crystalline salt ...
... room temperature , but is much slower than that of cyclohexene sulphide . Propylene sulphide . Propylene sulphide , left at room temperature with a moderate excess of dry methyl iodide , deposits a white , unstable , crystalline salt ...
Page 370
... room temperature ( 18 ° ) there is an arrest at the a - m . p . , followed at first by a slight fall in temperature , and then by a sharp rise to 37-38 ° , due to aẞ " transition . The heating curve shows only one arrest , at the ẞ " -m ...
... room temperature ( 18 ° ) there is an arrest at the a - m . p . , followed at first by a slight fall in temperature , and then by a sharp rise to 37-38 ° , due to aẞ " transition . The heating curve shows only one arrest , at the ẞ " -m ...
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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