Journal of the Chemical Society, Part 4The Society., 1949 |
From inside the book
Results 1-3 of 75
Page 2978
... aqueous sodium hydrogen carbonate , and the fibrous ester was thoroughly washed with water , before being dried at 60 ° in a vacuum ( P2O ) . Yield , 0 · 53 g . ( 98 % ) [ Found : F , nil ; Ac , 40-42 ( in several experiments ) . Calc ...
... aqueous sodium hydrogen carbonate , and the fibrous ester was thoroughly washed with water , before being dried at 60 ° in a vacuum ( P2O ) . Yield , 0 · 53 g . ( 98 % ) [ Found : F , nil ; Ac , 40-42 ( in several experiments ) . Calc ...
Page 3181
... aqueous sodium carbonate as above . Acidification precipitated a further quantity of B - p- methoxyphenylglutaric acid ( 1 · 0 g . ) , m . p . 163–164 ° . B - m - Methoxyphenylglutaric acid . ( a ) A mixture of B - m ...
... aqueous sodium carbonate as above . Acidification precipitated a further quantity of B - p- methoxyphenylglutaric acid ( 1 · 0 g . ) , m . p . 163–164 ° . B - m - Methoxyphenylglutaric acid . ( a ) A mixture of B - m ...
Page 3307
... aqueous sodium hydroxide , and the acetyl group removed by boiling with excess of alkali . The yield of crude 3 - sulphanilamidocinnamic acid obtained was 55-60 % , based on 3 - nitro- cinnamic acid . On purification the acid formed ...
... aqueous sodium hydroxide , and the acetyl group removed by boiling with excess of alkali . The yield of crude 3 - sulphanilamidocinnamic acid obtained was 55-60 % , based on 3 - nitro- cinnamic acid . On purification the acid formed ...
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absorption acetic acid acetic anhydride acetone added alcohol alkaline aluminium chloride aluminium iodide Amer amine ammonia aqueous sodium atom benzaldehyde benzene boiling bond bromide bromine trifluoride Calc carbon CH₂ Chem chloroform colourless needles compound concentrated condensation containing cooled crystallised crystals D.Sc decomp decomposition derivatives diazotised dilute dioxan dissolved distilled dried ester ethanol ethyl alcohol extracted with ether filtered filtrate formation formed Found fraction gave Grignard reagent halide heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide iodine ions isolated ketone light petroleum b. p. liquid method methyl methyl iodide minutes mixture molecule nitrate nitrogen obtained oxidation phenol picrate potassium precipitate prepared prisms pyridine reaction reagent recrystallised from ethanol reduced pressure removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent sulphate sulphone sulphuric acid synthesis Table tube values washed yield