Quarterly Journal of the Chemical Society of London, Volume 21 |
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Page 3774
... position products formed by further reaction via the 2 - methyleneindoline predominate . In a 1,2,3 - tri- substituted indole containing a methyl group at the 2- position the main products arise via loss of diazomethane , e.g. ( XIII ...
... position products formed by further reaction via the 2 - methyleneindoline predominate . In a 1,2,3 - tri- substituted indole containing a methyl group at the 2- position the main products arise via loss of diazomethane , e.g. ( XIII ...
Page 3825
... positions of the chain . This isomerization is particularly easy in the presence of TMEDA . This catalyst further induces metallation at both positions , α to the amide and at the allylic position ; the product formed in its presence ...
... positions of the chain . This isomerization is particularly easy in the presence of TMEDA . This catalyst further induces metallation at both positions , α to the amide and at the allylic position ; the product formed in its presence ...
Page 3931
... position is sp2 - hybridised . Similar results have been reported 17 for related 11- ketones . Direct epoxidation of the A5-11 - ketone ( VI ) with m- chloroperbenzoic acid afforded the 5x , 6x - epoxide ( XII ) as the major product ...
... position is sp2 - hybridised . Similar results have been reported 17 for related 11- ketones . Direct epoxidation of the A5-11 - ketone ( VI ) with m- chloroperbenzoic acid afforded the 5x , 6x - epoxide ( XII ) as the major product ...
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