Quarterly Journal of the Chemical Society of London, Volume 21 |
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Results 1-3 of 88
Page 3751
... room temperature for 1 hr . and then saturated with am- monium chloride and extracted with ether ( 6 x 50 c.c. ) . The combined extracts were washed with water , dried , and evaporated . The residual brown oil was filtered through Woelm ...
... room temperature for 1 hr . and then saturated with am- monium chloride and extracted with ether ( 6 x 50 c.c. ) . The combined extracts were washed with water , dried , and evaporated . The residual brown oil was filtered through Woelm ...
Page 3764
... room temperature , after which time t.l.c. [ benzene - methanol ( 95 : 5 ) ] indicated that most of the starting material had reacted . The hydrolysate was evaporated to dryness and the last traces of acetic acid were removed by ...
... room temperature , after which time t.l.c. [ benzene - methanol ( 95 : 5 ) ] indicated that most of the starting material had reacted . The hydrolysate was evaporated to dryness and the last traces of acetic acid were removed by ...
Page 3990
... room temperature overnight . Ethanol was removed in vacuo and the residue was fractionally distilled . A fraction b.p. 108-109 ° / 2 mmHg ( 1.25 g ) was obtained which from g.l.c. ( retention time 6-6 min ) and 1H n.m.r. evidence was ...
... room temperature overnight . Ethanol was removed in vacuo and the residue was fractionally distilled . A fraction b.p. 108-109 ° / 2 mmHg ( 1.25 g ) was obtained which from g.l.c. ( retention time 6-6 min ) and 1H n.m.r. evidence was ...
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