Journal of the Chemical SocietyThe Society., 1964 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Results 1-3 of 69
Page 299
... Elution with 50-70 % of ethyl acetete in light petroleum gave methyl [ 14C ] gibberellate ( Found : r.m.a. × 104 , 21-2 ) . The neutral fraction was chromatographed on alumina . Elution with light petroleum gave a colourless gum ( 0.097 ...
... Elution with 50-70 % of ethyl acetete in light petroleum gave methyl [ 14C ] gibberellate ( Found : r.m.a. × 104 , 21-2 ) . The neutral fraction was chromatographed on alumina . Elution with light petroleum gave a colourless gum ( 0.097 ...
Page 416
... elution with benzene gave 2 - acetyl - 5 - methoxy - 3 - methyl - 1,4 - benzoquinone which separated from light petroleum in yellow plates ( 0.73 g . ) , m . p . and mixed m . p . 93–94 ° . ( ii ) Elution of the products from tetrahydro ...
... elution with benzene gave 2 - acetyl - 5 - methoxy - 3 - methyl - 1,4 - benzoquinone which separated from light petroleum in yellow plates ( 0.73 g . ) , m . p . and mixed m . p . 93–94 ° . ( ii ) Elution of the products from tetrahydro ...
Page 445
... elution with benzene gave 2,3,4,5 - tetrahydro - 2 - isopropyl - 6 - methoxy- 5 - methyl - 4 - oxo - furano [ 3,2 - c ] quinoline ( IX ) ( 52 mg . , 68 % ) as prisms [ from light petroleum ( b . p . 40-60 ° ] , m . p . 76–77 ° , max ...
... elution with benzene gave 2,3,4,5 - tetrahydro - 2 - isopropyl - 6 - methoxy- 5 - methyl - 4 - oxo - furano [ 3,2 - c ] quinoline ( IX ) ( 52 mg . , 68 % ) as prisms [ from light petroleum ( b . p . 40-60 ° ] , m . p . 76–77 ° , max ...
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
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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