Quarterly Journal of the Chemical Society of London, Volume 8, Pages 1109-2068 |
Contents
Organic chemistry | 1109 |
Trifluoroacetic acid as a cyclisation reagent for the synthesis of thiazol54Hones and 2thiazolines | 1117 |
By G C BARRETT | 1123 |
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Common terms and phrases
acetic acid acetic anhydride acetone acetylation added alkaloids alumina Amer amine aqueous aromatic aryl benzene benzotriazole bromine CH₂ Chem Chim chloride chloroform chromatographed cm.¹ colourless compound crystallised cyclisation decomp derivatives diluted dimethyl distilled dried elsinochrome eluted ester ethanol ethyl acetate EtOH evaporated extracted with ether filtered filtrate Found fraction gave give Grignard reagent heated under reflux hydride hydrochloric acid hydrochloride hydrolysis i.r. spectrum identical isolated isomer ketone light petroleum lithium aluminium hydride log ɛ m.p. and mixed mass spectrum methyl methylene mixed m.p. mixture mmoles mole n.m.r. spectrum needles nitrogen Nujol obtained oxidation petroleum b.p. phenyl piperidine potassium prepared protons pyridine pyrrole quinone reaction requires residue retrorsine room temperature silica gel sodium hydroxide solid solution solvent spectra stirred sulphuric acid VIII washed yellow yield