Journal of the Chemical Society, Part 1The Society., 1947 |
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Page 471
... minutes . After refluxing for a further 15 minutes , the mixture was concentrated to 100 c.c. and diluted with water ( 100 c.c. ) , and the precipitate was collected ( 9.7 g .; 91.7 % ) . - ( b ) ( VI ; R 4 ' - nitrophenyl ) ( 10 g ...
... minutes . After refluxing for a further 15 minutes , the mixture was concentrated to 100 c.c. and diluted with water ( 100 c.c. ) , and the precipitate was collected ( 9.7 g .; 91.7 % ) . - ( b ) ( VI ; R 4 ' - nitrophenyl ) ( 10 g ...
Page 472
... minutes , crystals began to separate . Concentrated hydrochloric acid ( 150 c.c. ) was added and the mixture left over - night . The precipitate was filtered off , washed with cold concentrated hydrochloric acid and extracted with ...
... minutes , crystals began to separate . Concentrated hydrochloric acid ( 150 c.c. ) was added and the mixture left over - night . The precipitate was filtered off , washed with cold concentrated hydrochloric acid and extracted with ...
Page 834
... minutes . 1 - Keto - 3- ( 2 ′ : 4 ' - di- nitrophenyl ) -2 - methyltetrahydrophthalazine - 4 - acetic acid crystallised from methyl alcohol in light yellow prisms , m . p . 278 ° ( Found : C , 53 · 1 ; H , 3 · 9 ; N , 14-3 . C1 , HO , N ...
... minutes . 1 - Keto - 3- ( 2 ′ : 4 ' - di- nitrophenyl ) -2 - methyltetrahydrophthalazine - 4 - acetic acid crystallised from methyl alcohol in light yellow prisms , m . p . 278 ° ( Found : C , 53 · 1 ; H , 3 · 9 ; N , 14-3 . C1 , HO , N ...
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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