Journal of the Chemical SocietyThe Society., 1963 |
From inside the book
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Page 2598
... dilute aqueous alkali , neither the 2 ( eq ) -hydroxy - lactone ( III ) nor the 2 ( ax ) -epimer ( IV ) , whose hydroxyl group and lactone bridge have the same relative configuration as in the natural compounds , was epimerised under ...
... dilute aqueous alkali , neither the 2 ( eq ) -hydroxy - lactone ( III ) nor the 2 ( ax ) -epimer ( IV ) , whose hydroxyl group and lactone bridge have the same relative configuration as in the natural compounds , was epimerised under ...
Page 2731
... dilute sulphuric acid . Extraction with ether , followed by the usual working - up , gave a colourless oil , b . p . 130 ° / 0-02 mm . , which solidified . Recrystallisation from light petroleum gave diethyl a - furoyl - a ...
... dilute sulphuric acid . Extraction with ether , followed by the usual working - up , gave a colourless oil , b . p . 130 ° / 0-02 mm . , which solidified . Recrystallisation from light petroleum gave diethyl a - furoyl - a ...
Page 2959
... dilute hydrochloric acid and extracted with ethyl acetate . The extract was washed with dilute hydrochloric acid and water , and the product was chromatographed on alumina ( ethyl acetate - light petroleum ) . Elution with 5 % of ethyl ...
... dilute hydrochloric acid and extracted with ethyl acetate . The extract was washed with dilute hydrochloric acid and water , and the product was chromatographed on alumina ( ethyl acetate - light petroleum ) . Elution with 5 % of ethyl ...
Contents
Organic | 2567 |
Gibberellic acid Part XXIII Some perhydrofluoren8aylacetic acid lactones | 2590 |
Gibberellic acid Part XXV Some new reduction products of gibberellic acid | 2606 |
115 other sections not shown
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Common terms and phrases
absorption acetic acid acetic anhydride acetone acetyl alumina Amer amine anhydride atom band benzene benzoate Calc carboxylate catalyst cation CH₂ Chem chloride chloroform chromatography cm.¹ complex compound concentration constant crystallised decomp decomposition derivative dibromide dilute dimethyl dioxan distilled dried eluted ester ethanol ethyl acetate evaporated experimental extracted with ether filtered filtrate flindissone formation Found fraction gave H₂O heated hydrochloric acid hydrogen bromide hydrogen chloride hydrogen peroxide hydrolysis hydroxide infrared infrared spectrum k₁ ketone kinetic lactone light petroleum liquid lithium aluminium hydride mixed m. p. mixture mole mµ ɛ needles nitrogen obtained optical oxidation oxygen petroleum b. p. phenol potassium prepared prisms proton pteridine pyridine pyrolysis reaction reagent refluxed requires residue resin room temperature salt scission sodium hydrogen carbonate sodium hydroxide solvent spectra structure Table thiolactone toluene-p-sulphonic ultraviolet values vinyl Vmax washed yield