Quarterly Journal of the Chemical Society of London, Volume 21 |
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Results 1-3 of 73
Page 3563
... m.p. , mixed m.p. , i.r. , and n.m.r. spectra , and t.l.c. behaviour as the methosulphate prepared by method ( a ) , from natural sclerotiorin . = H ) Tetrahydrosclerotoquinone . - The ketone ( 7 ; R1 : = ( 0.4 g . ) was dissolved in ...
... m.p. , mixed m.p. , i.r. , and n.m.r. spectra , and t.l.c. behaviour as the methosulphate prepared by method ( a ) , from natural sclerotiorin . = H ) Tetrahydrosclerotoquinone . - The ketone ( 7 ; R1 : = ( 0.4 g . ) was dissolved in ...
Page 3589
... ( m.p. , mixed m.p. , and i.r. spectrum ) with the samples from the degradation of ergochrysin A3 [ Found : C , 67-8 ; H , 5-9 ; OMe , 31-5 . Calc . for CH , O , ( OMe ) ,: C , 67-6 ; H , 6-0 ; OMe , 30.8 % ] . 2,2 ' - Diethoxy - 4,4 ...
... ( m.p. , mixed m.p. , and i.r. spectrum ) with the samples from the degradation of ergochrysin A3 [ Found : C , 67-8 ; H , 5-9 ; OMe , 31-5 . Calc . for CH , O , ( OMe ) ,: C , 67-6 ; H , 6-0 ; OMe , 30.8 % ] . 2,2 ' - Diethoxy - 4,4 ...
Page 3855
... m.p. and mixed m.p. 133 ° , the trans - desmotroposantonin acetate 2 ( 3a ) ( 1 · 2 g ) , m.p. and mixed m.p. 180 ° , and ( - ) - a - desmotroposantonin acetate 2 ( 3b ) ( 800 mg ) , m.p. and mixed m.p. 155 ° . Phosphorus Trihalide ...
... m.p. and mixed m.p. 133 ° , the trans - desmotroposantonin acetate 2 ( 3a ) ( 1 · 2 g ) , m.p. and mixed m.p. 180 ° , and ( - ) - a - desmotroposantonin acetate 2 ( 3b ) ( 800 mg ) , m.p. and mixed m.p. 155 ° . Phosphorus Trihalide ...
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