Quarterly Journal of the Chemical Society of London, Volume 9, Pages 801-1472 |
Contents
Organic chemistry | 801 |
73 | 806 |
Polypeptides Part XIII The use of ẞmethylthioethyl esters for the protection of carboxyl groups | 807 |
Copyright | |
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Common terms and phrases
4-aminobiphenyl absorption acetic acid acetic anhydride acetone acetyl added alcohol Amer amine anhydrous ation atom benzene biphenyl-4-carboxylic acids bromide Calc carboxyl CH₂ Chem chloride chloroform chromatography cm.¹ compound cooled crystallised cyclisation D.Sc decomp derivatives dextran dextranase dilute dimethyl dissolved distilled dried Elution ester ethanol ethyl acetate evaporated extracted with ether filtered filtrate Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis infrared spectrum iodide ionisation constants isolated ketone lactone light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl methylene mixed m. p. mmoles mole n.m.r. spectrum needles nitramine nitrogen obtained oxide phenyl potassium precipitate prepared protons pyridine reaction mixture reagent reduced requires residue ring room temperature salt sodium hydroxide solid solution solvent spectra steric stirred structure substituted Table ultraviolet vacuo washed with water yellow yield