Journal of the Chemical SocietyThe Society., 1964 |
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Page 3618
... chloroform - ether gave oils , which crystallised on addition of ether , to give anhydro - 14ẞ - digacetigenin ( IX ) , m . p . and mixed m . p . 220-223 ° , Amax . 242 mμ ( log ɛ 4 · 0 ) . Further elution with chloroform gave an oil ...
... chloroform - ether gave oils , which crystallised on addition of ether , to give anhydro - 14ẞ - digacetigenin ( IX ) , m . p . and mixed m . p . 220-223 ° , Amax . 242 mμ ( log ɛ 4 · 0 ) . Further elution with chloroform gave an oil ...
Page 4369
... Chloroform . By A. J. BURN , J. I. G. CADOGAN , and ( in part ) P. J. BUNYAN . Triethyl phosphite and chloroform react at 130 ° to give diethyl ethylphos- phonate in high yield . Chloroform is not consumed to a great extent and di ...
... Chloroform . By A. J. BURN , J. I. G. CADOGAN , and ( in part ) P. J. BUNYAN . Triethyl phosphite and chloroform react at 130 ° to give diethyl ethylphos- phonate in high yield . Chloroform is not consumed to a great extent and di ...
Page 4509
... chloroform ) / ( max . in water ) differ by less than 5 % - ɛ From data at present available K cannot be evaluated . An order - of - magnitude number can be obtained by assuming that the integrated intensity ( = max . Av where Av is the ...
... chloroform ) / ( max . in water ) differ by less than 5 % - ɛ From data at present available K cannot be evaluated . An order - of - magnitude number can be obtained by assuming that the integrated intensity ( = max . Av where Av is the ...
Contents
4028 | 3507 |
Nucleophilic reactivity Part V The reaction between amines and ethyl meth | 3513 |
Molecular polarisability Dipole moments molar Kerr constants and apparent | 3523 |
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absorption acetic acid acetic anhydride acetone acetoxylation acetyl added alcohol alkaline alumina aluminium Amer amine atoms band benzene benzyl bond bromide Calc carbon carbonyl CH₂ chabazite Chem chloride chloroform chromatography cm.¹ compounds concentration crystals decomp derivatives diethyl diluted dimethylformamide diol dissolved distilled dried ester ethanol ethyl acetate evaporated EXPERIMENTAL extracted with ether filtrate formation Found fraction gave give heated hydrochloric acid hydrochloride hydrogen hydrolysis hydroxyl infrared iodide isomers K₁ ketone kinetic light petroleum 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 petroleum b. p. phenol picrate potassium precipitated prepared proton pyridine rate constants reaction recrystallised refluxed requires residue room temperature salt sodium hydroxide solvent spectra spectrum stirred structure substitution sulphuric acid Table values washed yield