Journal of the Chemical SocietyThe Society., 1955 |
From inside the book
Results 1-3 of 81
Page 1207
... filtrate gave a precipitate ( P1 ) ( 1.2 g . ) , and evaporation of the mother - liquors therefrom to 300 c.c. gave , after cooling , a precipitate ( P2 ) ( 1.4 g . ) . The filtrate from P2 , when kept overnight , gave further material ...
... filtrate gave a precipitate ( P1 ) ( 1.2 g . ) , and evaporation of the mother - liquors therefrom to 300 c.c. gave , after cooling , a precipitate ( P2 ) ( 1.4 g . ) . The filtrate from P2 , when kept overnight , gave further material ...
Page 1382
... filtrate was brought to pH 4 with glacial acetic acid . Crystallization occurred on cooling , to give fluffy white needles ( 0 · 096 g . ) , m . p . 179 ° ( decomp . ) . The filtrate from the reaction mixture was concentrated in vacuo ...
... filtrate was brought to pH 4 with glacial acetic acid . Crystallization occurred on cooling , to give fluffy white needles ( 0 · 096 g . ) , m . p . 179 ° ( decomp . ) . The filtrate from the reaction mixture was concentrated in vacuo ...
Page 2041
... filtrate under reduced pressure , and the residue was fractionated . The product ( 17 · 5 g . , 82 % ) boiled at 94 ... filtrate was added dry sodium fluoride ( 0.5 mole ) , and the mixture heated under reflux with vigorous stirring for ...
... filtrate under reduced pressure , and the residue was fractionated . The product ( 17 · 5 g . , 82 % ) boiled at 94 ... filtrate was added dry sodium fluoride ( 0.5 mole ) , and the mixture heated under reflux with vigorous stirring for ...
Contents
By F SMITH and LILIAN M TURTON | 1045 |
The Constitution of Homolycorine and Lycorenine | 1066 |
The Photolysis of Acetaldehyde Part III The Reaction in the Presence of Nitric | 1076 |
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Common terms and phrases
acetic anhydride acetone acetyl acidified added alcohol alkali Amer ammonia aqueous sodium aqueous solution atom benzene boiling bromine Calc carbon Chem chloride chloroform chromatography colourless compound concentrated cooled crystallised from methanol decomp derivative dilute dimethyl dioxan dissolved distillation dried eluted ester ethanol evaporated EXPERIMENTAL filtered filtrate formed Found fraction gave give glacial acetic acid H₂O heated hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone light petroleum b. p. lithium aluminium hydride m. p. and mixed method methyl mixed m. p. mixture molecule naphthazarin nitric oxide nitrogen obtained oxide pale yellow picrylsulphonate potassium hydroxide precipitate prepared prisms pyridine reaction reduced pressure refluxed removed Reprint Order requires residue ring room temperature salt separated sodium hydroxide solid soluble solvent steam-bath stirred structure sulphide sulphone sulphuric acid titration values vouacapenate washed yellow needles yield