Journal of the Chemical Society, Part 1The Society., 1962 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Page 531
... evaporated to dryness and the residue was refluxed with N - potassium hydroxide ( 100 ml . ) for 20 min . The mixture was distilled , the distillate ( 50 ml . ) was mixed with picric acid ( 3 · 3 g . ) in methanol , and the whole was ...
... evaporated to dryness and the residue was refluxed with N - potassium hydroxide ( 100 ml . ) for 20 min . The mixture was distilled , the distillate ( 50 ml . ) was mixed with picric acid ( 3 · 3 g . ) in methanol , and the whole was ...
Page 585
... evaporated to a small volume , mixed with 10N - hydrochloric acid ( 15 ml . ) , and boiled under reflux for 3 hr . The solution was evaporated to dryness in vacuo and the residue evaporated in vacuo with water . The residue was ...
... evaporated to a small volume , mixed with 10N - hydrochloric acid ( 15 ml . ) , and boiled under reflux for 3 hr . The solution was evaporated to dryness in vacuo and the residue evaporated in vacuo with water . The residue was ...
Page 1135
... evaporated under reduced pressure at 30 ° to give a gum which was chromatographed on alumina ( 150 g . ) . Elution with benzene ( 300 ml . ) gave , on evaporation and recrystallisation of the residue from ether , 5,6 - dibenzyloxyindol ...
... evaporated under reduced pressure at 30 ° to give a gum which was chromatographed on alumina ( 150 g . ) . Elution with benzene ( 300 ml . ) gave , on evaporation and recrystallisation of the residue from ether , 5,6 - dibenzyloxyindol ...
Contents
NO PAGE | 1 |
NOTES | 62 |
The use of triethylamine in the preparation of NcarboxyLproline anhydride | 68 |
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absorption acetic acid acetone added afforded alcohol alkali Amax Amer amylose anhydride aqueous solution atom benzene bromide buffer Calc carbon carbonyl CH₂ Chem chloride chloroform chromatography coefficients colourless complexes compound concentration constant containing crystallisation crystals decomposition derivative dilute distilled double bond dried eluted ester ethanol ethyl acetate evaporated experimental filtrate formation formed Found fraction gave give H₂O heated hydrazine hydrochloric acid hydrogen hydrolysis hydroxyl infrared infrared spectrum intermediate isolated isomerisation k₁ ketal ketone light petroleum b. p. m. p. and mixed malononitrile methyl mixed m. p. mixture mole molecule needles nitrogen nucleophilic obtained oxidation phenyl polymer potassium potassium hydroxide precipitate prepared present ratio reaction reagent reduction reflux requires residue room temperature sample sodium ethoxide sodium hydroxide solid solvent spectra structure Table terpyridine triethylamine ultraviolet values washed yellow yield