Journal of the Chemical Society, Pages 1-1026The Society., 1950 |
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Page 377
... filtered off , dried , and extracted several times with ether in which the photodimer was slightly soluble . The dimer recrystallised from glacial acetic acid in almost colourless crystals , m . p . ca. 260 ° ( decomp . ) ( ca. 10 ...
... filtered off , dried , and extracted several times with ether in which the photodimer was slightly soluble . The dimer recrystallised from glacial acetic acid in almost colourless crystals , m . p . ca. 260 ° ( decomp . ) ( ca. 10 ...
Page 856
... filtered and treated at once with excess of perchloric acid ( 30 % ) . The solution was well stirred and almost immediately a red crystalline precipitate of the perchlorate was obtained . This was filtered off after a few minutes and ...
... filtered and treated at once with excess of perchloric acid ( 30 % ) . The solution was well stirred and almost immediately a red crystalline precipitate of the perchlorate was obtained . This was filtered off after a few minutes and ...
Page 986
... filtered hot , giving a filtrate ( iii ) and a residue ( iv ) . Residue ( iv ) was washed with hot water , separated by decantation from heavy particles of manganese dioxide , heated with diluted sulphuric acid , filtered , washed , and ...
... filtered hot , giving a filtrate ( iii ) and a residue ( iv ) . Residue ( iv ) was washed with hot water , separated by decantation from heavy particles of manganese dioxide , heated with diluted sulphuric acid , filtered , washed , and ...
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Common terms and phrases
4-dione absorption acetic acid acetic anhydride acetone acetyl activity added alcohol alkaline Amer amine ammonia amylose anhydride atom benzene boiling bromide bromine trifluoride Calc carbon dioxide carbon tetrachloride catalyst CH₂ Chem chloride chloroform CO₂ colour colourless complex compound containing cooling copper corresponding crystallised crystals cyclisation decomp derivatives diazomethane dilute dioxan dissolved distilled disulphide dried electron ester ethanol ethyl acetate ethylamine evaporated filtered filtrate formed Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone light petroleum b. p. liquid m. p. and mixed metals method methyl minutes mixed m. p. mixture molecule needles nitrate obtained oxidation peroxide potassium precipitate prepared prisms pyridine Q-enzyme reaction reagent reduced requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent sulphate sulphide sulphuric acid washed yellow yield