Journal of the Chemical Society, Part 4The Society., 1949 |
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Results 1-3 of 82
Page 2495
... collected . Recrystallised from n - butanol - benzene , the purine formed colourless prisms , m . p . 225 ° ( Found : C , 69-4 ; H , 5-8 ; N , 25-7 . C19H1 , N , requires C , 69-1 ; H , 5-5 ; N , 25.5 % ) . 18 2 - Dimethylaminoadenine ...
... collected . Recrystallised from n - butanol - benzene , the purine formed colourless prisms , m . p . 225 ° ( Found : C , 69-4 ; H , 5-8 ; N , 25-7 . C19H1 , N , requires C , 69-1 ; H , 5-5 ; N , 25.5 % ) . 18 2 - Dimethylaminoadenine ...
Page 2714
... collected and recrystallised from alcohol , had m . p . 191-192 ° . The acid - insoluble portion of the product was extracted by means of benzene , and the benzene solution washed with water , dried , and then chromato- graphed on a ...
... collected and recrystallised from alcohol , had m . p . 191-192 ° . The acid - insoluble portion of the product was extracted by means of benzene , and the benzene solution washed with water , dried , and then chromato- graphed on a ...
Page 3025
... collected in : Trap E trace trace 1.6 Trap J ..... 9.8 1.5 22.6 U tubes 1.8 6.0 24.0 15.0 70.0 Total 1-8 6.0 33.8 16.5 92.4 Total wt . of fluorocarbon × 100 7.3 24.5 138.0 99-0 117 Wt . of hydrocarbon Fractionation of the product from ...
... collected in : Trap E trace trace 1.6 Trap J ..... 9.8 1.5 22.6 U tubes 1.8 6.0 24.0 15.0 70.0 Total 1-8 6.0 33.8 16.5 92.4 Total wt . of fluorocarbon × 100 7.3 24.5 138.0 99-0 117 Wt . of hydrocarbon Fractionation of the product from ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added alcohol alkaline aluminium chloride aluminium iodide Amer amine ammonia aqueous sodium atom benzaldehyde benzene boiling bond bromide bromine trifluoride Calc carbon CH₂ Chem chloroform colourless needles compound concentrated condensation containing cooled crystallised crystals decomp decomposition derivatives diazotised dilute dioxan dissolved distilled dried ester ethanol ethyl alcohol extracted with ether filtered filtrate formation formed Found fraction gave Grignard reagent halide heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide iodine ions isolated ketone light petroleum b. p. liquid method methyl methyl iodide minutes mixture molecule nitrate nitrogen obtained oxidation phenol picrate potassium precipitate prepared prisms pyridine reaction reagent recrystallised from ethanol reduced pressure removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred sulphate sulphone sulphuric acid synthesis Table tube values washed yield