Journal of the Chemical Society, Part 1Chemical Society., 1949 |
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Page 45
... stirred for a further 30 minutes . Methyl iodide ( 213 g . ) was then added dropwise during 1 hour , the solution stirred for 3 hours , anhydrous ether ( 400 c.c .; previously cooled to -30 ° ) added , and the whole stirred without ...
... stirred for a further 30 minutes . Methyl iodide ( 213 g . ) was then added dropwise during 1 hour , the solution stirred for 3 hours , anhydrous ether ( 400 c.c .; previously cooled to -30 ° ) added , and the whole stirred without ...
Page 48
... stirred at -5 ° while oleum ( 67.5 % ; 120 g . ) was added slowly down the side of the flask . The temperature of the mixture was raised to 20 ° , and a second portion of oleum ( 67.5 % ; 125 g . ) added . After being stirred overnight ...
... stirred at -5 ° while oleum ( 67.5 % ; 120 g . ) was added slowly down the side of the flask . The temperature of the mixture was raised to 20 ° , and a second portion of oleum ( 67.5 % ; 125 g . ) added . After being stirred overnight ...
Page 480
... stirred at 20-30 ° until homogeneous . p - Chlorophenyl isothio- cyanate ( 4.2 g . ) was then added , and the mixture stirred at 30 ° for 1-5 hours . The clear mixture was poured into water , and after several hours ' stirring , the ...
... stirred at 20-30 ° until homogeneous . p - Chlorophenyl isothio- cyanate ( 4.2 g . ) was then added , and the mixture stirred at 30 ° for 1-5 hours . The clear mixture was poured into water , and after several hours ' stirring , the ...
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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