Quarterly Journal of the Chemical Society of London |
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Page 3131
... gave a product , m . p . 126- 127 ° undepressed by the authentic material . [ 14C ] Echinulin ( r.m.a. 1 · 0 × 105 ) from Me - 14CO , Na gave acetone 2,4 - dinitrophenylhydrazone ( r.m.a. 1.61 x 10 ) . Kuhn - Roth oxidation of the ...
... gave a product , m . p . 126- 127 ° undepressed by the authentic material . [ 14C ] Echinulin ( r.m.a. 1 · 0 × 105 ) from Me - 14CO , Na gave acetone 2,4 - dinitrophenylhydrazone ( r.m.a. 1.61 x 10 ) . Kuhn - Roth oxidation of the ...
Page 3300
... gave a solid ( 109 mg . ) which after crystallisation from acetone - methanol gave 4,4,14a - trimethyl - 5a - cholesta - 8,24 - dien - 3a - ol , m . p . 132—134 ° , [ a ] + 43 ° ( c 0 · 7 ) ( Found : C , 84-6 ; H , 12-0 . C30H50O ...
... gave a solid ( 109 mg . ) which after crystallisation from acetone - methanol gave 4,4,14a - trimethyl - 5a - cholesta - 8,24 - dien - 3a - ol , m . p . 132—134 ° , [ a ] + 43 ° ( c 0 · 7 ) ( Found : C , 84-6 ; H , 12-0 . C30H50O ...
Page 3301
... gave 4,4,14a - trimethyl - 5x - cholesta- 8,24 - dien - 3x - ol , m . p . 132-134 ° ( 110 mg . ) ; ether and chloroform gave an oil ( 20 mg . ) . Fraction A was repeatedly recrystallised from acetone , and successive crops of crystals ...
... gave 4,4,14a - trimethyl - 5x - cholesta- 8,24 - dien - 3x - ol , m . p . 132-134 ° ( 110 mg . ) ; ether and chloroform gave an oil ( 20 mg . ) . Fraction A was repeatedly recrystallised from acetone , and successive crops of crystals ...
Contents
3082 | 2595 |
Interaction between selenium oxychloride and the trichlorides of boron | 2600 |
NO PAGE | 2601 |
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absorption acetic acid acetic anhydride acetone acetyl added alcohol alkali alumina Amer aqueous ation atom band benzene beryllium boiling bond bromide Calc carbon tetrachloride carbonyl Chem chloride chloroform chromatography cm.¹ colourless complexes compound concentrated cooled crystallised crystals cyclohexanone decomp decomposition derivative diethyl dilute dioxan dissolved distilled elution ester ethanol ethyl acetate evaporated EXPERIMENTAL extracted with ether filtered filtrate formation Found fraction gave heated hydride hydrochloric acid hydrolysis infrared infrared spectrum iodide isolated isomers isorotenolone ketone light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole molecule needles nitrate nitric oxide nitrogen obtained peroxide phenyl phosphate potassium precipitate prepared pyridine quinazoline radicals reaction refluxed requires residue room temperature rotenone sample sodium hydroxide solid solution solvent spectra structure sulphate sulphuric acid Table ultraviolet values yellow yield