Journal of the Chemical SocietyThe Society., 1964 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
From inside the book
Results 1-3 of 51
Page 52
... quinone A , in both neutral and basic media , indicated that it was almost certainly a derivative of 5,7 - dihydroxy - 1,4 - naphthaquinone.5 In accordance with this view it formed a boroacetate ( peri - OH ) and , although it was ...
... quinone A , in both neutral and basic media , indicated that it was almost certainly a derivative of 5,7 - dihydroxy - 1,4 - naphthaquinone.5 In accordance with this view it formed a boroacetate ( peri - OH ) and , although it was ...
Page 53
... quinone residue and the fact that no nitrogen - containing products are obtained on methylation with diazomethane ... quinone A dimethyl ether were significantly closer to those of 5,7 - dimethoxy - 1,4 - naphtha- quinone than to those ...
... quinone residue and the fact that no nitrogen - containing products are obtained on methylation with diazomethane ... quinone A dimethyl ether were significantly closer to those of 5,7 - dimethoxy - 1,4 - naphtha- quinone than to those ...
Page 1067
... quinone . Reaction of bromine with the hexamethoxybiphenylene was complex , giving this same quinone , its 4 - bromo - derivative , 4 - bromo- 1,2,3,6,7,8 - hexamethoxybiphenylene , and 2,2 ' - dibromo - 3,4,5,3 ′ , 4 ′ , 5 ′ - hexa ...
... quinone . Reaction of bromine with the hexamethoxybiphenylene was complex , giving this same quinone , its 4 - bromo - derivative , 4 - bromo- 1,2,3,6,7,8 - hexamethoxybiphenylene , and 2,2 ' - dibromo - 3,4,5,3 ′ , 4 ′ , 5 ′ - hexa ...
Contents
By J K P ARIYARATNE and M L H GREEN | 1 |
The biosynthesis of fungal metabolites | 16 |
Monofluoroisoquinolines | 22 |
105 other sections not shown
Other editions - View all
Common terms and phrases
absorption acetic acid acetic anhydride alkaline aluminium chloride Amer amine anhydride aphins aqueous aromatic atoms band benzene bond bromide Calc carbon Chem chloride chloroform chromatography cm.¹ complex compound concentration coupling constants crystallised crystals decomp decomposition derivatives diazomethane dilute dimethyl dioxan dried Elution equation erythroaphin-fb erythroaphins ester ethanol ether ethyl ethyl acetate evaporated EXPERIMENTAL extracted formation formed Found fraction gave halides hydrochloric acid hydrogen hydrolysis infrared infrared spectra iodide irradiated isomer ligand light petroleum m. p. and mixed maltose mixed m. p. mixture mole molecule mµ log ɛ nitrogen nuclear magnetic resonance obtained oxidation oxygen phenyl piperidine potassium prepared protoaphin protoaphin-fb proton pyridine quinone reaction recrystallised refluxed requires residue ring room temperature sample similar sodium hydroxide solution solvent spectrum structure substituted Table ultraviolet values washed yellow yield