Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-1364 |
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Results 1-3 of 78
Page 181
... crystallised from the appropriate solvent . The 2 - hydroxymethyl- indoles thus prepared are described in Table 3 . Indole - 2 - carbaldehydes : Method B. - The 2 - hydroxy- methylindole ( 4 g . ) was dissolved in dichloromethane ( 250 ...
... crystallised from the appropriate solvent . The 2 - hydroxymethyl- indoles thus prepared are described in Table 3 . Indole - 2 - carbaldehydes : Method B. - The 2 - hydroxy- methylindole ( 4 g . ) was dissolved in dichloromethane ( 250 ...
Page 249
... crystallised from acetone - light petroleum to give plates ( 98 mg . ) of the keto - lactone ( 22 ) , m.p. 200—204 ° , identical ( i.r. spectrum ) with the specimen prepared above . Reduction of the Ketone ( 22 ) .- The ketone ( 100 mg ...
... crystallised from acetone - light petroleum to give plates ( 98 mg . ) of the keto - lactone ( 22 ) , m.p. 200—204 ° , identical ( i.r. spectrum ) with the specimen prepared above . Reduction of the Ketone ( 22 ) .- The ketone ( 100 mg ...
Page 481
... crystallised from benzene as short needles , m.p. 178 ° in 45 % yield ( Found : C , 62-6 ; H , 5 · 7 ; N , 9.9 . CHIN2O requires C , 62.5 ; H , 5-6 ; N , 9.7 % ) ; n.m.r .: NH , 1-3 ; Ar - H , 1-78d , 2-69d ; 5 - CH3 , 7-66 ; 3 - CH1 ...
... crystallised from benzene as short needles , m.p. 178 ° in 45 % yield ( Found : C , 62-6 ; H , 5 · 7 ; N , 9.9 . CHIN2O requires C , 62.5 ; H , 5-6 ; N , 9.7 % ) ; n.m.r .: NH , 1-3 ; Ar - H , 1-78d , 2-69d ; 5 - CH3 , 7-66 ; 3 - CH1 ...
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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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