Quarterly Journal of the Chemical Society of London, Part 3 |
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Page 2627
... salt ) . Phthaloyl - y - L - glutamyl ( dibenzyl L - aspartate ) was liberated from a solution of the dicyclohexyl- ammonium salt ( 4.56 g . ) in 70 % ethanol by the cation - exchange resin Amberlite 1R - 120 ( H + form ) . The solution ...
... salt ) . Phthaloyl - y - L - glutamyl ( dibenzyl L - aspartate ) was liberated from a solution of the dicyclohexyl- ammonium salt ( 4.56 g . ) in 70 % ethanol by the cation - exchange resin Amberlite 1R - 120 ( H + form ) . The solution ...
Page 2724
... salt is merely catalysing a slow reaction between the organic halide and dimethylformamide such as has been observed by Kornblum and Blackwood.15 It is perhaps significant that solutions of cinnamyl bromide in this solvent at 80 ° are ...
... salt is merely catalysing a slow reaction between the organic halide and dimethylformamide such as has been observed by Kornblum and Blackwood.15 It is perhaps significant that solutions of cinnamyl bromide in this solvent at 80 ° are ...
Page 2898
... salt was filtered off , washed with water , ethanol , and ether , and dried at 55 ° in vacuo ( yield 6.2 g . , 98 % ) . The salt was suspended in dry , sulphur - free xylene ( 250 c.c. ) from which 100 c.c. were removed by distillation ...
... salt was filtered off , washed with water , ethanol , and ether , and dried at 55 ° in vacuo ( yield 6.2 g . , 98 % ) . The salt was suspended in dry , sulphur - free xylene ( 250 c.c. ) from which 100 c.c. were removed by distillation ...
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