Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-1108 |
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Page 164
... showed the absence of a hydroxyl group . The n.m.r. spectrum had a singlet band at 6-27 corresponding to the three protons of an -OMe group . Mild hydrolysis with methanolic potassium hydroxide gave angolensic acid ( C2H2O ) , which ...
... showed the absence of a hydroxyl group . The n.m.r. spectrum had a singlet band at 6-27 corresponding to the three protons of an -OMe group . Mild hydrolysis with methanolic potassium hydroxide gave angolensic acid ( C2H2O ) , which ...
Page 229
... spectra of the alcohols ( IX ) showed the presence of the hydroxyl group and the benzene ring ; the ultraviolet spectra showed an unconjugated benz- ene ring , and the mass spectra showed the expected cleavage products [ see ( IXa ) ...
... spectra of the alcohols ( IX ) showed the presence of the hydroxyl group and the benzene ring ; the ultraviolet spectra showed an unconjugated benz- ene ring , and the mass spectra showed the expected cleavage products [ see ( IXa ) ...
Page 233
... spectrum showed < 2 % hydrogen at the deuter- ated positions . max . ( ii ) Dihydropyran formation . The tetradeuterio - methyl vinyl ketone ( XI ) ( 3 · 4 g . , 46 mmoles ) was added to NN - di- methylisobutenylamine ( 4 · 0 g . , 40.5 ...
... spectrum showed < 2 % hydrogen at the deuter- ated positions . max . ( ii ) Dihydropyran formation . The tetradeuterio - methyl vinyl ketone ( XI ) ( 3 · 4 g . , 46 mmoles ) was added to NN - di- methylisobutenylamine ( 4 · 0 g . , 40.5 ...
Contents
By A J HUBERT | 2 |
6Methoxy3methylbenzofurano47quinone dimers of 3methylbenzofurans and tautomerism in 2acetyl | 3 |
By R GARNER and H SUSCHITZKY | 74 |
Copyright | |
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absorption acetic acid acetic anhydride acetone acetyl adduct alcohol alumina Amer amine aromatic ation band benzene bromide Calc carbonyl CH₂ Chem chloride chloroform chromatography cm.¹ CO₂Me colourless compound cooled corresponding crystallised decomp derivatives diazomethane dilute dioxan dissolved distilled doublet dried elution ester ethanol ether ethyl acetate EtOH evaporated extracted with ether filtered filtrate Found fraction gave give heated under reflux hydrochloric acid hydrogenolysis hydrolysis hydroxyl infrared infrared spectrum isolated isomer ketone lactone light petroleum b. p. lithium aluminium hydride log ɛ methyl angolensate methyl ester methylene mixed m. p. mmoles mole multiplet n.m.r. spectrum needles Nujol obtained oxetan oxidation peaks phenyl potassium prepared protons pyridine reaction mixture reduction requires residue ring room temperature singlet sodium hydroxide solid solution solvent spectra spectrum showed stirred structure sulphuric acid ultraviolet VIII washed yellow yield