Journal of the Chemical Society, Part 1The Society., 1947 |
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Page 66
... picrate , m . p . 166 ° , gave no depression with pyridine picrate . Catalytic reductions . ( a ) N - Aminopyridinium chloride ( 2 g . ) , dissolved in distilled water ( 30 c.c. ) , was hydrogenated in presence of Adams's ( PtO ) ...
... picrate , m . p . 166 ° , gave no depression with pyridine picrate . Catalytic reductions . ( a ) N - Aminopyridinium chloride ( 2 g . ) , dissolved in distilled water ( 30 c.c. ) , was hydrogenated in presence of Adams's ( PtO ) ...
Page 385
... picrate has m . p . 188.5 ° . NN ' - Diphenylacetamidine ( 7 % ) was obtained as by - product and had m . p . 131-132 ° , undepressed on admixture with an authentic specimen . ( 3 ) The reaction was exothermic so that the internal ...
... picrate has m . p . 188.5 ° . NN ' - Diphenylacetamidine ( 7 % ) was obtained as by - product and had m . p . 131-132 ° , undepressed on admixture with an authentic specimen . ( 3 ) The reaction was exothermic so that the internal ...
Page 519
... picrate ( 1304 c.c. ) . The initial precipitate was filtered off and discarded and the filtrate concentrated under reduced pressure to 2500 c.c. On being kept overnight this solution deposited an initial crop ( 20-2 g . ) of the crude ...
... picrate ( 1304 c.c. ) . The initial precipitate was filtered off and discarded and the filtrate concentrated under reduced pressure to 2500 c.c. On being kept overnight this solution deposited an initial crop ( 20-2 g . ) of the crude ...
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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 condensation cooled crystallised crystallised from alcohol crystals cyanide decomp derivative diazotised dilute dissolved distilled dried ester ethyl acetate 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 solid soluble solvent stirred structure substance sulphate sulphide sulphone sulphuric acid washed yellow needles yield