Journal of the Chemical SocietyThe Society., 1949 |
From inside the book
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Page 625
... distilled at low temperatures to remove water and unchanged 3 : 5 - dimethylphenol , and , subsequently , dry distilled . The distillate ( 180 g . ) , " Limbux " ( 180 g . ) , and formaldehyde ( 150 c.c. ) were again mixed and distilled ...
... distilled at low temperatures to remove water and unchanged 3 : 5 - dimethylphenol , and , subsequently , dry distilled . The distillate ( 180 g . ) , " Limbux " ( 180 g . ) , and formaldehyde ( 150 c.c. ) were again mixed and distilled ...
Page 638
... distilled off from the filtrate , and the residue boiled at 64.5 ° / 0 · 15 mm .; yield 132 g . ( 72 % ) ( Found : F , 8.9 . Calc . for C , H1 , O , FP : F , 8.9 % ) . Di - n - butyl Fluorophosphonate . - Disilver fluorophosphonate ...
... distilled off from the filtrate , and the residue boiled at 64.5 ° / 0 · 15 mm .; yield 132 g . ( 72 % ) ( Found : F , 8.9 . Calc . for C , H1 , O , FP : F , 8.9 % ) . Di - n - butyl Fluorophosphonate . - Disilver fluorophosphonate ...
Page 755
... distilled from this reagent through a 20 - plate all - glass fractionating column . The middle fraction was of constant b . p . within 0.01 ° and had a25 0.8737 , n ° 1-4981 . 1 : 4 - Dioxan ( commercial " purissimus " grade ) was ...
... distilled from this reagent through a 20 - plate all - glass fractionating column . The middle fraction was of constant b . p . within 0.01 ° and had a25 0.8737 , n ° 1-4981 . 1 : 4 - Dioxan ( commercial " purissimus " grade ) was ...
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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