Journal of the Chemical Society, Part 1The Society., 1947 |
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Page 24
... removed by addition of silver carbonate . The filtrate from silver salts was freed from silver with hydrogen sulphide , and , after removal of silver sulphide , the solution was concentrated under reduced pressure to 500 c.c. and ...
... removed by addition of silver carbonate . The filtrate from silver salts was freed from silver with hydrogen sulphide , and , after removal of silver sulphide , the solution was concentrated under reduced pressure to 500 c.c. and ...
Page 223
... removed by catalytic hydrogenation with platinum oxide at 70 ° . The use of ethyl N - benzyl - 4 - propylpiperidine - 2 - carboxylate in place of the N - benzoyl ester in the sodium triphenylmethyl - catalysed reaction with quininic ...
... removed by catalytic hydrogenation with platinum oxide at 70 ° . The use of ethyl N - benzyl - 4 - propylpiperidine - 2 - carboxylate in place of the N - benzoyl ester in the sodium triphenylmethyl - catalysed reaction with quininic ...
Page 369
... removed from the heavy naphtha residue by utilising its solubility in sodium hydroxide solution . Optimum conditions ... removed in ether , and the aqueous layer acidified with concentrated hydrochloric acid . The orange - yellow ...
... removed from the heavy naphtha residue by utilising its solubility in sodium hydroxide solution . Optimum conditions ... removed in ether , and the aqueous layer acidified with concentrated hydrochloric acid . The orange - yellow ...
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Common terms and phrases
acetic anhydride acetone acetyl added alkaline Amer amidine amine ammonia ammonium aqueous sodium atoms benzene boiling bromide Calc CH₂ charcoal Chem chloroform colourless needles compound concentrated hydrochloric acid cooled crystallised crystallised from alcohol crystals cyanide D.Sc decomp derivative diazotised dilute dissolved distilled dried ester experimental extracted with ether filtered filtrate formed Found fraction gave give m. p. H₂O heated hydrochloric acid hydrogen chloride hydrolysis iodide isolated light petroleum m. p. and mixed methanol Methiodide method methyl alcohol minutes mixed m. p. molecular molecule nitration nitric acid obtained oxidation pale yellow petroleum b. p. phenyl picrate polymer polymerisation potassium precipitate prepared prisms pyridine reduced pressure refluxed removed requires residue room temperature salt separated sodium carbonate sodium hydroxide sodium nitrite solid soluble solvent stirred structure substance sulphate sulphide sulphone sulphuric acid washed yellow needles yield