Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-1108 |
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Results 1-3 of 74
Page 2
... absorption maxima in the ranges 238-241 mu ( log 3.98-4-09 ) and 284-287 mu ( log & 3.80-4.00 ) , the shorter wavelength maximum often appearing as a shoulder on additional high - intensity absorption features near 220 mu in derivatives ...
... absorption maxima in the ranges 238-241 mu ( log 3.98-4-09 ) and 284-287 mu ( log & 3.80-4.00 ) , the shorter wavelength maximum often appearing as a shoulder on additional high - intensity absorption features near 220 mu in derivatives ...
Page 3
... absorption ( A ) and circular dichroism ( B ) of N - thiobenzoyl - L - valine ( in ether ) ; ultraviolet absorption ( C ) and circular dichroism ( D ) of N - thiobenzoyl - L - valine ( in MeOH ) ; ultraviolet absorption ( E ) and ...
... absorption ( A ) and circular dichroism ( B ) of N - thiobenzoyl - L - valine ( in ether ) ; ultraviolet absorption ( C ) and circular dichroism ( D ) of N - thiobenzoyl - L - valine ( in MeOH ) ; ultraviolet absorption ( E ) and ...
Page 430
... absorption centred at 3.15 and carbonyl absorption at 5.7 μ ) , together with a metal carbonyl ( strong absorption in the region 4 · 6—5 · 0 μ ) . Preparation of Perfluoro - N - nitropiperidine . - Perfluoro- piperidine ( 2.50 g . , 9.4 ...
... absorption centred at 3.15 and carbonyl absorption at 5.7 μ ) , together with a metal carbonyl ( strong absorption in the region 4 · 6—5 · 0 μ ) . Preparation of Perfluoro - N - nitropiperidine . - Perfluoro- piperidine ( 2.50 g . , 9.4 ...
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