Quarterly Journal of the Chemical Society of London, Part 3 |
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Page 2599
... benzene - pentane ( 1 : 1 ; 2 × 400 ml . ) and benzene ( 2 × 400 ml . ) gave unchanged starting material ( 244 mg . ) , m . p . and mixed m . p . 126-128 ° ( from acetone - methanol ) . Elution with ether - benzene ( 1 : 4 ; 3 × 400 ml ...
... benzene - pentane ( 1 : 1 ; 2 × 400 ml . ) and benzene ( 2 × 400 ml . ) gave unchanged starting material ( 244 mg . ) , m . p . and mixed m . p . 126-128 ° ( from acetone - methanol ) . Elution with ether - benzene ( 1 : 4 ; 3 × 400 ml ...
Page 2817
... benzene , and methanol . The benzene eluate ( 41 g . ) was reconverted into the picrate which was crystallised several times from benzene - ethanol , and the recovered oil was chromatographed on alumina . Elution with light petroleum ...
... benzene , and methanol . The benzene eluate ( 41 g . ) was reconverted into the picrate which was crystallised several times from benzene - ethanol , and the recovered oil was chromatographed on alumina . Elution with light petroleum ...
Page 3045
... benzene . Cold - water washing of the high - boiling residue provided phthalazine ( 2 · 3 g . ) . The water - insoluble residue was warmed with benzene ( 300 ml . ) , filtered from insoluble tar , and extracted with 6N - hydrochloric ...
... benzene . Cold - water washing of the high - boiling residue provided phthalazine ( 2 · 3 g . ) . The water - insoluble residue was warmed with benzene ( 300 ml . ) , filtered from insoluble tar , and extracted with 6N - hydrochloric ...
Contents
ABEL E W Bennett M A and Wilkinson G | 2323 |
Bourne E J Hartigan J and Weigel H | 2332 |
Clark E R | 2344 |
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1,3,5-trinitrobenzene absorption acetic acid acetic anhydride acetone added alcohol alkaline alkyl Amer amine ammonia anhydride atom benzene boiling bond bromide Calc carbon Chem chloride chloroform chromatography complex compound concentration constant cooled crystallised crystals curve decomp derivatives diethylamine dilute dimer dioxan dioxide dissolved distilled dried eluted ester ethanol evaporated filtered filtrate formation formed Found fraction gave give glycollic acid glyoxylic acid heated hydride hydrochloric acid hydrolysis hydroxide infrared infrared spectrum iodide isolated isomer K₁ light petroleum b. p. lithium lithium aluminium hydride m. p. and mixed methyl methyl iodide mixed m. p. mixture mole molecular molecule nitrogen obtained oxidation oxygen perchlorate picrate polymer potassium precipitate prepared prisms pyridine reaction reduced refluxed requires residue room temperature salt sodium hydroxide solid solvent spectra stirred structure sulphuric acid Table titration ultraviolet values washed yield