Quarterly Journal of the Chemical Society of London, Volume 1, Pages 1-1364 |
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Page 657
... phenyl sulphone gave a 60 % recovery of starting material , 2 - amino - 6 - chlorophenyl phenyl sulphone ( II ; R1 = Cl , R2 = H ) ( 3 % ) , and 3,3 ′ - dichloro- 2 - hydroxy - 2 ' - ( phenylsulphonyl ) azoxybenzene ( V ; R1 = C1 , R2 H ) ...
... phenyl sulphone gave a 60 % recovery of starting material , 2 - amino - 6 - chlorophenyl phenyl sulphone ( II ; R1 = Cl , R2 = H ) ( 3 % ) , and 3,3 ′ - dichloro- 2 - hydroxy - 2 ' - ( phenylsulphonyl ) azoxybenzene ( V ; R1 = C1 , R2 H ) ...
Page 659
... phenyl Sul- phone with Sodium Hydroxide - Dioxan . - To a solution of 2 - aminophenyl 2- ( hydroxyamino ) phenyl sulphone ( 1 g ) in dioxan ( 50 ml ) was added aqueous sodium hydroxide ( 40 % ; 20 ml ) . The mixture was stirred at 20 ...
... phenyl Sul- phone with Sodium Hydroxide - Dioxan . - To a solution of 2 - aminophenyl 2- ( hydroxyamino ) phenyl sulphone ( 1 g ) in dioxan ( 50 ml ) was added aqueous sodium hydroxide ( 40 % ; 20 ml ) . The mixture was stirred at 20 ...
Page 965
... phenyl - 6a - thiathiophthen ( 0.098 g ) . Subsequent elution with benzene yielded 3 - acetyl - 2 - methyl- thio - 5 - phenyl - 6a - thiathiophthen ( 1 · 18 g . ) , which gave dark red needles , m.p. 138 ° ( from cyclohexane ) ( Found ...
... phenyl - 6a - thiathiophthen ( 0.098 g ) . Subsequent elution with benzene yielded 3 - acetyl - 2 - methyl- thio - 5 - phenyl - 6a - thiathiophthen ( 1 · 18 g . ) , which gave dark red needles , m.p. 138 ° ( from cyclohexane ) ( Found ...
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