Journal of the Chemical Society, Part 4The Society., 1949 |
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Page 2515
... separated in the above manner , using n - butanol , saturated with water containing a little ammonia , as the mobile phase . The eluate from the column was fractionated into approx . 5 - ml . portions by the automatic device which ...
... separated in the above manner , using n - butanol , saturated with water containing a little ammonia , as the mobile phase . The eluate from the column was fractionated into approx . 5 - ml . portions by the automatic device which ...
Page 2585
... separated which gradually decomposed between 225 ° and 260 ° . It is soluble in hot water and it can be recrystallised from ethanol , pyridine , or dioxan without changing the decomposition behaviour on heating . After recrystallisation ...
... separated which gradually decomposed between 225 ° and 260 ° . It is soluble in hot water and it can be recrystallised from ethanol , pyridine , or dioxan without changing the decomposition behaviour on heating . After recrystallisation ...
Page 2772
... separated was extracted with ether , and the ozonolysis and extraction repeated until no further solid separated . The ethereal extracts were combined , extracted with sodium carbonate solution , dried , and evaporated . The resinous ...
... separated was extracted with ether , and the ozonolysis and extraction repeated until no further solid separated . The ethereal extracts were combined , extracted with sodium carbonate solution , dried , and evaporated . The resinous ...
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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 D.Sc 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 sulphate sulphone sulphuric acid synthesis Table tube values washed yield