Quarterly Journal of the Chemical Society of London |
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Page 56
... appears in this spectrum as two some- what smooth maxima , one in the former position at 220 mp and the other at 230 mμ : each band appears to be a little stronger than one band of the ester ( I ) , but not nearly twice as strong . The ...
... appears in this spectrum as two some- what smooth maxima , one in the former position at 220 mp and the other at 230 mμ : each band appears to be a little stronger than one band of the ester ( I ) , but not nearly twice as strong . The ...
Page 94
... appear to constitute the first example of equilibrium attained under buffer conditions.3 The most probable structure for the 3 : 5 - cyclotrienol appears on grounds of analogy to be 3 : 5 - cycloergosta - 7 : 9 ( 11 ) : 22 - trien - 6ß ...
... appear to constitute the first example of equilibrium attained under buffer conditions.3 The most probable structure for the 3 : 5 - cyclotrienol appears on grounds of analogy to be 3 : 5 - cycloergosta - 7 : 9 ( 11 ) : 22 - trien - 6ß ...
Page 621
... appears at 1723 cm . - 1 whereas in the corresponding chloro- formates ( Table 1 ) it is at 1775 cm . - 1 . In compounds 1-8 ( Table 1 ) the frequency of the carbonyl vibration is fairly constant , implying that neither the mass of ...
... appears at 1723 cm . - 1 whereas in the corresponding chloro- formates ( Table 1 ) it is at 1775 cm . - 1 . In compounds 1-8 ( Table 1 ) the frequency of the carbonyl vibration is fairly constant , implying that neither the mass of ...
Contents
Dynamic contact angles Part I Changes in airsolutionsolid contact angles with | 22 |
Perfluoroalkyl derivatives of nitrogen Part V The mechanism of the Hofmann | 30 |
Studies on biological methylation Part XVI Natural sulphonium compounds | 39 |
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acetic acid acetic anhydride acetone acetyl added alcohol alkali alkyl Amer ation atom band benzene boiling bond boron trichloride bromide bromine Calc carbon Chem chloroform chromatography colourless complex compound concentration condensation cooled crystallised from ethanol curve decomp derivative dilute dioxan dissolved distilled dried elution equilibrium ester ethanol evaporated EXPERIMENTAL extracted with ether filtered filtrate formed Found fraction gave give H₂O heated hydrochloric acid hydrogen chloride hydrolysis infrared iodide iodine irradiation isolated ketone Light absorption lithium aluminium hydride m. p. and mixed method methyl mixed m. p. mixture mole molecule needles nitrate obtained oxidation oxidised phenyl phosphate picrate potassium hydroxide precipitate prepared pyridine reaction reagent reflux removed requires residue room temperature salt sodium hydroxide solid soluble solvent spectra spectrum structure sulphide sulphuric acid Table tetrahydrofuran trichloride ultraviolet vacuo values washed yellow yield