Quarterly Journal of the Chemical Society of London |
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Page 2544
... ester by heating diglycylglycine ethyl ester . The polymerisation products were investigated qualitatively by paper chromatography ; in the early stages of the work the usual ninhydrin spraying method was used to locate the spots , but ...
... ester by heating diglycylglycine ethyl ester . The polymerisation products were investigated qualitatively by paper chromatography ; in the early stages of the work the usual ninhydrin spraying method was used to locate the spots , but ...
Page 2545
... ester are notably different from those obtained by Pacsu and Wilson ( loc . cit . ) with the methyl esters ; however , these authors relied solely on methoxyl analyses of the products , and the methyl migration observed by Sluyterman ...
... ester are notably different from those obtained by Pacsu and Wilson ( loc . cit . ) with the methyl esters ; however , these authors relied solely on methoxyl analyses of the products , and the methyl migration observed by Sluyterman ...
Page 2546
... esters immediately before use . Glycylglycine ethyl ester . The hydrochloride , m . p . 181 ° ( Schott , Larkin , Rockland , and Dunn , J. Org . Chem . , 1947 , 12 , 490 ) , was converted into the free ester , m . p . 85-86 ° , in 74 ...
... esters immediately before use . Glycylglycine ethyl ester . The hydrochloride , m . p . 181 ° ( Schott , Larkin , Rockland , and Dunn , J. Org . Chem . , 1947 , 12 , 490 ) , was converted into the free ester , m . p . 85-86 ° , in 74 ...
Contents
2 4Trimethylpentane | 2082 |
Cinnolines Part XXXIV 5 6 and 7Hydroxy and 5 6 and 7Aminocinnolines | 2100 |
The Conductometric Evaluation of the Ionisation Functions of the Monohalogenoacetic | 2104 |
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absorption acetic anhydride acetone acetyl added alcohol alkaline Amer ammonia atom band benzene boiling bromine Calc carbon carbonyl Chem chloride chloroform colour colourless compound concentrated cooled crystallised crystals decomp derivative diethyl dilute dioxide dissolved distilled dried eluted ester ethanol ethylene evaporated filtered fluoride formed Found fraction gave give glacial acetic acid H₂O heated hydrochloric acid hydrogen hydrogen bromide hydrogen chloride hydrolysis infrared isolated ketone lanthanons light petroleum b. p. liquid lithium aluminium hydride m. p. and mixed method methyl mixed m. p. mixture mole needles nickel nitrate nitric nitryl fluoride obtained oxidation oxygen peroxide potassium hydroxide precipitate prepared pressure prisms pteridine pyridine reaction reduction refluxed Reprint Order requires residue resin room temperature sodium hydroxide solid soluble solution solvent spectra spectrum structure sulphuric acid Table tube ultraviolet vacuo washed yellow yield