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Page 2232
... evaporated under reduced pressure . The syrupy residue could not be made to crystallise , so it was hydrolysed by heating it with 80 % acetic acid at 100 ° for 20 minutes . The filtered solution was poured into water ( 500 c.c. ) and ...
... evaporated under reduced pressure . The syrupy residue could not be made to crystallise , so it was hydrolysed by heating it with 80 % acetic acid at 100 ° for 20 minutes . The filtered solution was poured into water ( 500 c.c. ) and ...
Page 2533
... evaporated at 15-20 mm . and the dry residue extracted with light petroleum , leaving a small white residue of the cis - isomer . The yellow extract was evaporated to dryness and the residue twice recrystallised from ethanol , yielding ...
... evaporated at 15-20 mm . and the dry residue extracted with light petroleum , leaving a small white residue of the cis - isomer . The yellow extract was evaporated to dryness and the residue twice recrystallised from ethanol , yielding ...
Page 2681
... evaporated and the dried , powdered residue extracted with hot chloroform ( 5 x 50 c.c. ) . The combined chloroform extracts were evaporated , the gum ( 450 mg . ) was dissolved in ethanol ( 5 c.c. ) and treated with saturated ethanolic ...
... evaporated and the dried , powdered residue extracted with hot chloroform ( 5 x 50 c.c. ) . The combined chloroform extracts were evaporated , the gum ( 450 mg . ) was dissolved in ethanol ( 5 c.c. ) and treated with saturated ethanolic ...
Contents
Studies of the Localization Theory of Organic Reactions Part I The Effects | 1955 |
440 | 1971 |
The Probable Existence of Geometrically Isomeric Diazocarboxyamides | 1977 |
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Common terms and phrases
2-aminoanthraquinone 2'-dianthraquinonylamine absorption acetic acid acetic anhydride acetone acidification added addition alcohol aldehyde alkaline alumina Amer amine anhydride anthraquinone aqueous sodium atom autoxidation benzene blue boiling bond bromide brown Calc Chem cinnoline colour colourless needles compound concentrated sulphuric acid condensation cooled copper cordycepin crystallised D.Sc decomp decomposition derivative dilute dimethyl dioxan distilled dithionite dried ester evaporated filtered filtrate formation formed Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis indanthrone ketone light petroleum b. p. methanol methanolic potassium hydroxide method methyl minutes mixed m. p. mixture molecule nitrobenzene nitrogen obtained orange oxidation oxygen pale yellow phosphate potassium carbonate potassium hydroxide precipitate prepared prisms pyridine rearrangement requires residue room temperature salt separated sodium dithionite sodium hydroxide solid soluble solvent sulphuric acid titration trimethylgallium washed yellow needles yield