Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-1108 |
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Page 282
... isolated from the ether extract of the roots of this plant , and which have recently been synthesised.4 We now wish to report the characterisation of a new phenolic alkaloid , lindcarpine , isolated from the methanol extract of the ...
... isolated from the ether extract of the roots of this plant , and which have recently been synthesised.4 We now wish to report the characterisation of a new phenolic alkaloid , lindcarpine , isolated from the methanol extract of the ...
Page 1072
... isolated previously from tragacanthic acid.3 Two further oligosaccharides , probably an arabinobiose and an arabinotriose , were isolated , but full evidence for structure was not obtained . The acidic oligosaccharides , which were ...
... isolated previously from tragacanthic acid.3 Two further oligosaccharides , probably an arabinobiose and an arabinotriose , were isolated , but full evidence for structure was not obtained . The acidic oligosaccharides , which were ...
Page 1145
... isolated from spent sulphite liquor , have been synthesised , and their structures have been elucidated . The Reaction of Chlorofluoroalkanes with Triethyl Phosphite By A. E.. which had the u.v. spectrum of benzene ( 2 · 7 g . ) , and ...
... isolated from spent sulphite liquor , have been synthesised , and their structures have been elucidated . The Reaction of Chlorofluoroalkanes with Triethyl Phosphite By A. E.. which had the u.v. spectrum of benzene ( 2 · 7 g . ) , and ...
Contents
By A J HUBERT | 2 |
6Methoxy3methylbenzofurano47quinone dimers of 3methylbenzofurans and tautomerism in 2acetyl | 3 |
By R GARNER and H SUSCHITZKY | 74 |
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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