Quarterly Journal of the Chemical Society of London, Pages 3324-4156 |
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Page 3313
... refluxed together in acid under a variety of conditions and when hexamine and 2 - chloromethylbenziminazole were refluxed in alcohol or acetone . 2 - Aminomethylbenziminazole , which cannot be prepared by more conventional methods from ...
... refluxed together in acid under a variety of conditions and when hexamine and 2 - chloromethylbenziminazole were refluxed in alcohol or acetone . 2 - Aminomethylbenziminazole , which cannot be prepared by more conventional methods from ...
Page 3326
... refluxed on the water - bath for 24 hr . The ethanol was evaporated and the residue refluxed for 3 hr . with concentrated hydro- chloric acid ( 450 c.c. ) and water ( 900 c.c. ) . The orange solution was decanted from the black oil . On ...
... refluxed on the water - bath for 24 hr . The ethanol was evaporated and the residue refluxed for 3 hr . with concentrated hydro- chloric acid ( 450 c.c. ) and water ( 900 c.c. ) . The orange solution was decanted from the black oil . On ...
Page 3401
... refluxed for 1 hr . The product was precipitated from the cooled solution with water , filtered off , and recrystallized from benzene - light petroleum as needles , m . p . 132 ° ( 17 g . , 57 % ) ( Found : S , 21-5 . C17H15NS ...
... refluxed for 1 hr . The product was precipitated from the cooled solution with water , filtered off , and recrystallized from benzene - light petroleum as needles , m . p . 132 ° ( 17 g . , 57 % ) ( Found : S , 21-5 . C17H15NS ...
Contents
ii | 2842 |
Catalytic hydrogenation | 2845 |
Garden J F and Thomson R H | 2851 |
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Common terms and phrases
4-triazine absorption acetic acid acetic anhydride acetone acidified added alcohol alkali alkyl Amer amine aqueous sodium atom band benzene benzyl boiling bromine Calc carbonate carbonyl Chem chloroform chromatography CO₂H colourless compound concentration containing cooled crystallised cyclisation decomp derivative diethyl dilute dioxan dioxide diphenyl dissolved distilled dried eluted ester ethanol ethyl acetate evaporated filtered filtrate fluorene formation formed Found fraction gave give H₂O heated hydrochloric acid hydrogen chloride hydrolysis infrared iodide isatin isolated ketone lactone light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole needles nitric acid nitrogen obtained oxidation perchloric phenyl potassium hydroxide precipitate prepared prisms pyridine reaction reagent reduced refluxed requires residue room temperature salt separated sodium hydroxide solid solution solvent spectra structure sulphuric acid Table titration washed yellow yield