Journal of the Chemical SocietyThe Society., 1955 |
From inside the book
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Page 1364
... isolated as 2 : 4- dinitrophenylhydrazone , m . p . and mixed m . p . 124 ° , after chromatography on silica . Other carbonyl compounds were present in smaller amounts but none was isolated pure . The acidic products were not examined ...
... isolated as 2 : 4- dinitrophenylhydrazone , m . p . and mixed m . p . 124 ° , after chromatography on silica . Other carbonyl compounds were present in smaller amounts but none was isolated pure . The acidic products were not examined ...
Page 1612
... isolated in the usual manner ( insoluble potassium salt ) was treated on the steam - bath for 24 hr . with acetic anhydride ( 5 ml . ) and pyridine ( 5 ml . ) . The acetylated acid , which could not be obtained crystalline , was ...
... isolated in the usual manner ( insoluble potassium salt ) was treated on the steam - bath for 24 hr . with acetic anhydride ( 5 ml . ) and pyridine ( 5 ml . ) . The acetylated acid , which could not be obtained crystalline , was ...
Page 1848
... isolated the three trimethylnaphthalenes mentioned in the summary and what is probably an ethylmethylnaphthalene from a fraction of a Trinidad crude oil . This fraction , of boiling range 267-278 ° , was prepared by fractional ...
... isolated the three trimethylnaphthalenes mentioned in the summary and what is probably an ethylmethylnaphthalene from a fraction of a Trinidad crude oil . This fraction , of boiling range 267-278 ° , was prepared by fractional ...
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