Journal of the Chemical Society, Part 1The Society., 1959 |
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Results 1-3 of 70
Page 17
... distilled to give hexafluorobenzene ( 0.9 g . , 45 % ) and 2 : 3 : 4 : 5 : 6 - pentafluorophenetole ( 1.1 g .; 48 % ) , identical with the compound described above . Pentafluorophenol . - Hexafluorobenzene ( 10.0 g .; 0.054 mole ) ...
... distilled to give hexafluorobenzene ( 0.9 g . , 45 % ) and 2 : 3 : 4 : 5 : 6 - pentafluorophenetole ( 1.1 g .; 48 % ) , identical with the compound described above . Pentafluorophenol . - Hexafluorobenzene ( 10.0 g .; 0.054 mole ) ...
Page 423
... distilled azeotropically . It thus appeared that the replacement of the fifth alcoholic group might be slow owing to steric hindrance , or that a side reaction occurred owing to which a portion of the replaceable alcohol in the alkoxide ...
... distilled azeotropically . It thus appeared that the replacement of the fifth alcoholic group might be slow owing to steric hindrance , or that a side reaction occurred owing to which a portion of the replaceable alcohol in the alkoxide ...
Page 604
... distilled , gave the ester ( 135 g . , 40 % ) , b . p . 46-51 ° / 13 mm . ( lit. , 16 52 ° / 15 mm . ) . The use of chilled 10 % aqueous sodium hydroxide in place of the ammonia gave inconsistent yields , never above 28 % . The base ...
... distilled , gave the ester ( 135 g . , 40 % ) , b . p . 46-51 ° / 13 mm . ( lit. , 16 52 ° / 15 mm . ) . The use of chilled 10 % aqueous sodium hydroxide in place of the ammonia gave inconsistent yields , never above 28 % . The base ...
Contents
3Dioxa and 1 3 | 1 |
Triterpenoids Part LVII The oxidation of norfriedelanone with selenium dioxide | 38 |
2dichloro3 4epoxybutane and related compounds | 44 |
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absorption acetic acid acetone acetyl chloride added alcohol alkaline alumina Amer amine anhydride aqueous sodium atom band benzene boiling bond bromide Calc carbonyl CH₂ Chem chloroform chromatography complex compound concentrated cooled crystallised cyclohexene decomp derivative dilute dioxan distilled dried electron eluted epoxide ester ethanol evaporated excess extracted with ether filtered filtrate fluoride formation formed Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis hydroxyl ibid infrared spectrum iodide isolated isomers ketone lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mmole molecule needles nitrate nitrogen nitrous acid obtained olefin oxidation oxygen peroxide picrate potassium hydroxide precipitate prepared pyridine radicals reaction reagent reduced requires residue room temperature salt separated sodium hydroxide solid solution solvent spectra structure sulphuric acid Table tetrachloride triethylamine ultraviolet values washed yellow yield