Journal of the Chemical Society, Part 1Chemical Society., 1942 |
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Results 1-3 of 88
Page 14
... material , m . p . 219 ° , but when crystallised from 80 % alcohol , however , the substance melted at 184-186 ° . Only after a very lengthy series of crystallisations from different solvents , have two products been obtained , one , m ...
... material , m . p . 219 ° , but when crystallised from 80 % alcohol , however , the substance melted at 184-186 ° . Only after a very lengthy series of crystallisations from different solvents , have two products been obtained , one , m ...
Page 181
... material . We express our indebtedness to Trinity College for a Rouse Ball Research Studentship ( G. M. G. ) . THE UNIVERSITY CHEMICAL LABORATORY , CAMBRIDge . [ Received , October 23rd , 1941. ] 30. The Active Principles of Leguminous ...
... material . We express our indebtedness to Trinity College for a Rouse Ball Research Studentship ( G. M. G. ) . THE UNIVERSITY CHEMICAL LABORATORY , CAMBRIDge . [ Received , October 23rd , 1941. ] 30. The Active Principles of Leguminous ...
Page 185
... material from the residual xylene liquor , about 10 g . of crystalline acid and 80 g . of volatile neutral oxidation ... material , b . p . 85-87 ° / 15 mm . ( 21 g . ) ; ( b ) aldehydic material , b . p . 87–105 ° / 15 mm . ( 13 g ...
... material from the residual xylene liquor , about 10 g . of crystalline acid and 80 g . of volatile neutral oxidation ... material , b . p . 85-87 ° / 15 mm . ( 21 g . ) ; ( b ) aldehydic material , b . p . 87–105 ° / 15 mm . ( 13 g ...
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absorption acetone acidified alkaline aluminium amine ammonia anhydride aqueous atoms autoxidation base benzene boiling bromine Calc carbon carbonisation CH₂ Chem Chemical chloramine-T chloroform colour colourless needles compound concentrated condensation containing cooled copper crystallised from alcohol crystals decomp decomposition derivative dilute dissolved distilled double bond dried ester evaporated excess experimental extracted with ether filtered filtrate formation formed Found fraction gave glacial acetic acid H₂O heated hydrocarbon hydrochloric acid hydrogen chloride hydrolysis hydroperoxide hydroxyl ions isolated kations ketone light petroleum liquid melting method methyl alcohol methyl iodide micelles mixed m. p. mixture molecular molecule obtained oxidation oxidised oxygen peroxide potassium hydroxide precipitate prepared present prisms pyridine R₁ R₂ reaction refluxed requires residue salt separated sodium hydroxide solasodine solid soluble solvent substance sulphate sulphide sulphuric acid temperature thioindoxyl unsaturated washed water-bath yellow needles yield