Quarterly Journal of the Chemical Society of London, Volume 21 |
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Page 3629
... dissolved in the minimum amount of water ( ca. 7 ml ) . The pre- cipitated silver iodide was separated by centrifugation and the solution was evaporated under vacuum to give crystals ( 28 mg ) , m.p. 246-248 ° . Recrystallisation from ...
... dissolved in the minimum amount of water ( ca. 7 ml ) . The pre- cipitated silver iodide was separated by centrifugation and the solution was evaporated under vacuum to give crystals ( 28 mg ) , m.p. 246-248 ° . Recrystallisation from ...
Page 3688
... dissolved in ether . Ethanol ( 50 ml ) was added and the solution was slowly evaporated ; the product crystallized as pale buff prisms ( 870 mg , 28 % ) , m.p. 197—198 ° . Recrystallization from chloroform - ethanol gave pale pink ...
... dissolved in ether . Ethanol ( 50 ml ) was added and the solution was slowly evaporated ; the product crystallized as pale buff prisms ( 870 mg , 28 % ) , m.p. 197—198 ° . Recrystallization from chloroform - ethanol gave pale pink ...
Page 3748
... dissolved in methylene chloride ; the solution was washed with N - potassium hydrogen carbonate , followed by water , dried ( Na , SO1 ) , and evaporated under vacuum to give the title compound ( 1.30 g ) ; 8 ( CDCl2 ) 7 · 26 ( 5H , s ) ...
... dissolved in methylene chloride ; the solution was washed with N - potassium hydrogen carbonate , followed by water , dried ( Na , SO1 ) , and evaporated under vacuum to give the title compound ( 1.30 g ) ; 8 ( CDCl2 ) 7 · 26 ( 5H , s ) ...
Contents
Organic chemistry | 3513 |
Partially fluorinated heterocyclic compounds Part IX The syntheses of 4567tetrafluorobenzobfuran | 3516 |
Reactions of cyclohexadienes Part XII Some dienamines and dimethyl acetylenedicarboxylate | 3517 |
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acetic acid acetic anhydride acetone alkyl Amer amine aqueous ethanol aromatic atom benzene benzene-light petroleum benzyl boiling boron tribromide bromide Calc carbonyl CH₂ CHCl3 Chem chloroform chromatography cm¯¹ cm¹ CO₂H compound condensation cooled crystallised decomp derivatives diazomethane dimer dimethyl dimethylformamide dioxan dried elution enol ergochrysin ester ethanol ether ethyl acetate EtOH evaporated extracted filtered Found gave give heated hydrogen chloride i.r. spectrum identical isolated isomers ketone log ɛ mass spectra methyl methylene mixed m.p. mixture myricanone n.m.r. spectrum nitrogen Nujol obtained olefinic oxidation petroleum Ph Ph Ph PhCH₂ phenolic potassium prepared prisms protons pyridine quinuclidine reaction refluxed requires residue ring room temperature S)-sulphoxide sclerotiorin signals singlet sodium hydrogen carbonate sodium hydroxide solid solution solvent stirred structure sulphoxide synthesis triethylamine vacuo W. B. Whalley washed yellow needles yield