Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-1364 |
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Page 49
... washed with ethyl acetate and the combined solutions were washed with water ( 3 × 8 ml . ) . 2N - Citric acid ( 200 ml . ) was added , the ethyl acetate was evaporated , and ether ( 40 ml . ) was added to the residue . The ether layer ...
... washed with ethyl acetate and the combined solutions were washed with water ( 3 × 8 ml . ) . 2N - Citric acid ( 200 ml . ) was added , the ethyl acetate was evaporated , and ether ( 40 ml . ) was added to the residue . The ether layer ...
Page 181
... washed several times with a little ether ; the combined filtrates were washed with water , dried ( MgSO ) , and evaporated to dryness ; the residue was crystallised from the appropriate solvent . The 2 - hydroxymethyl- indoles thus ...
... washed several times with a little ether ; the combined filtrates were washed with water , dried ( MgSO ) , and evaporated to dryness ; the residue was crystallised from the appropriate solvent . The 2 - hydroxymethyl- indoles thus ...
Page 1003
... washed with acetone , and the filtrate and washings were evaporated to yield a brown oil . This was dissolved in ether ( 50 ml . ) and washed with sodium hydr- oxide solution ( 2N ; 50 ml . ) and then with water ( 5 × 100 ml ...
... washed with acetone , and the filtrate and washings were evaporated to yield a brown oil . This was dissolved in ether ( 50 ml . ) and washed with sodium hydr- oxide solution ( 2N ; 50 ml . ) and then with water ( 5 × 100 ml ...
Contents
By K C BASS and G M TAYLOR | 1 |
ether 100 ml was added slowly to a stirred solution | 4 |
Oxidative dimerisations of natural rethrolones and related compounds with manganese dioxide | 9 |
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Common terms and phrases
1,2-Benzoquinone acetic acid acetone added adduct aldehyde Amer amine aqueous ethanol aromatic atom azine benzanilide benzene benzyl bromide Calc carbonyl CH₂ Chem chloride chloroform chromatography cm.¹ compound crystallised cyclisation decomp decomposition derivatives dilute dimer distillation dried eluted ester ethanol ethyl acetate EtOH evaporated extracted with ether filtered Found fraction gave give heated under reflux hydrazine hydride hydrochloride hydrogen chloride hydrolysis i.r. spectrum imine iodide isolated ketone light petroleum b.p. lithium aluminium hydride log ɛ Mannich base mass spectrum MeOH methyl methylene mixed m.p. mmHg mmoles mole n.m.r. spectrum needles nitrogen nucleophilic Nujol obtained oxidation phenyl potassium protons pyridine quinone reaction mixture requires residue room temperature salt Scheme showed silica gel sodium hydroxide solution solvent spectra starting material stirred Table Tetrahedron washed white solid yield