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Page 2155
... heated under reflux in a current of air which had been passed through an aqueous solution of 2 : 4 - dinitrophenylhydrazine hydrochloride and then dried by calcium chloride . The volatile products of the reaction were passed through a ...
... heated under reflux in a current of air which had been passed through an aqueous solution of 2 : 4 - dinitrophenylhydrazine hydrochloride and then dried by calcium chloride . The volatile products of the reaction were passed through a ...
Page 2470
... heated under reflux for 15 hours . The brown solid which separated on pouring of the mixture into water was recrystallised from aqueous ethanol ; the acid separated as brown crystals , m . p . 227-230 ° ( decomp . ) ( Found C , 39-6 ; H ...
... heated under reflux for 15 hours . The brown solid which separated on pouring of the mixture into water was recrystallised from aqueous ethanol ; the acid separated as brown crystals , m . p . 227-230 ° ( decomp . ) ( Found C , 39-6 ; H ...
Page 2492
... heated under reflux on a water - bath with reduced " iron powder ( 0 · 35 g . ) , 0 · 1N - hydrochloric acid ( 1 ... heated under reflux with anhydrous nitrobenzene ( 12 c.c. ) at 135-140 ° ( bath - temp . ) and treated dropwise with ...
... heated under reflux on a water - bath with reduced " iron powder ( 0 · 35 g . ) , 0 · 1N - hydrochloric acid ( 1 ... heated under reflux with anhydrous nitrobenzene ( 12 c.c. ) at 135-140 ° ( bath - temp . ) and treated dropwise with ...
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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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