Quarterly Journal of the Chemical Society of London, Part 4, Pages 3513-4668 |
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Results 1-3 of 78
Page 3783
... acetone mother- liquor , when diluted with water , deposited the monoxide , m . p . 231-232.5 ° ( from aqueous acetone ) ( Found : C , 74-6 ; H , 4-9 . C2H18OP , requires C , 75-0 ; H , 4.7 % ) . 2 The phosphanthren ( IV ; R = Ph ) ( 0 ...
... acetone mother- liquor , when diluted with water , deposited the monoxide , m . p . 231-232.5 ° ( from aqueous acetone ) ( Found : C , 74-6 ; H , 4-9 . C2H18OP , requires C , 75-0 ; H , 4.7 % ) . 2 The phosphanthren ( IV ; R = Ph ) ( 0 ...
Page 3910
... acetone ( c = 1.5 % w / v ) and m . p . 102 ° . D Separation of the diastereoisomers was effected by crystallisation from a mixture of dichloromethane and n - hexane . After eight crystallisations a limiting rotation , [ x ] , 20 -59-8 ...
... acetone ( c = 1.5 % w / v ) and m . p . 102 ° . D Separation of the diastereoisomers was effected by crystallisation from a mixture of dichloromethane and n - hexane . After eight crystallisations a limiting rotation , [ x ] , 20 -59-8 ...
Page 3914
... acetone , c = 1.50 % w / v . 21 It was separated into its diasteroisomeric components by crystallisation from the 60 : 40 vol . solvent mixture dichloromethane : n - hexane , according to the system which was previously used to separate ...
... acetone , c = 1.50 % w / v . 21 It was separated into its diasteroisomeric components by crystallisation from the 60 : 40 vol . solvent mixture dichloromethane : n - hexane , according to the system which was previously used to separate ...
Contents
NO PAGE | 3528 |
The adsorption of stearic acid from solution by oxide adsorbents | 3535 |
The effect of pressure of the electrical conductivity of aqueous mixed electrolyte | 3548 |
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absorption acetic acid acetic anhydride acetone acetyl added alcohol alkaline aluminium Amer amine atoms band benzene benzyl boiling bond bromide Calc carbon cations CH₂ chabazite Chem chloride chloroform chromatography cm.¹ colistin compounds concentration constant crystallised crystals decomp derivatives dilute dimethyl dimethylformamide dioxan dissolved distilled dried ester ethanol ether ethyl acetate evaporated extracted filtrate formation formed Found fraction gave give heated hydrochloric acid hydrochloride hydrogen hydrolysis iodide isomer ketone lithium lithium aluminium hydride m. p. and mixed mixed m. p. mixture mole molecules needles nitrate nitric acid nitrogen o-xylene obtained optical oxide oxygen phenyl phosphine picrate polymyxin potassium precipitate prepared prisms proton pyridine reaction recrystallised reduced refluxed requires residue resonance room temperature salt sodium hydroxide solution solvent spectra stirred structure substitution sulphone sulphuric acid Table tetrahydrofuran values washed yellow yield