British Abstracts: Pure chemistry and physiology. ser. A1943 |
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... compounds exist as ketones until the pH becomes high . Results of Levene et al . ( A. , 1926 , 1260 ) for uracil ( I ) are confirmed for pH 3-11 . pH has a slight effect on the spectra of the methylated compounds , resonance ...
... compounds exist as ketones until the pH becomes high . Results of Levene et al . ( A. , 1926 , 1260 ) for uracil ( I ) are confirmed for pH 3-11 . pH has a slight effect on the spectra of the methylated compounds , resonance ...
Trang 247
... COMPOUNDS . Mercuri - compounds . - See B. , 1943 , III , 161 . Modern methods of preparative organic chemistry . I. Syntheses with organic lithium compounds . G. Wittig ( Angew . Chem . , 1940 , 53 , 241-247 ) .- A review . IX ...
... COMPOUNDS . Mercuri - compounds . - See B. , 1943 , III , 161 . Modern methods of preparative organic chemistry . I. Syntheses with organic lithium compounds . G. Wittig ( Angew . Chem . , 1940 , 53 , 241-247 ) .- A review . IX ...
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... compounds . Response to adrenaline was enhanced by the pressor substances . There was little effect on pulse rate or respir- ation . The dihydroxy - derivatives stimulated isolated intestine ; effects of other compounds were inconst ...
... compounds . Response to adrenaline was enhanced by the pressor substances . There was little effect on pulse rate or respir- ation . The dihydroxy - derivatives stimulated isolated intestine ; effects of other compounds were inconst ...
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absorption absorption spectra Acad acetate acid AcOH activity adsorption alkali Amer Anal analysis ation atoms boiling calc catalyst cellulose CHCI Chem chemical chloride CHPh CO₂ CO₂H coeff colour compounds Compt conc concn const containing converted corr cryst crystals curves decomp decreases derivatives described determined diazotised dioxan discussed effect electrolytes electron energy equilibrium ester ether EtOH formation formed Geol gives H₂ H₂O H₂SO heat hydrochloride hydrogen hydrolysed increases ionisation ions isomerised ketone lattice liquid measurements MeOH metal method methyl minerals mixtures NaOH obtained oxidation oxidised oxime particles phenols PhOH Physical Rev picrate polarisation polymerisation pptd pptn prep presence pressure reaction reagent reduced rend room temp salts semicarbazone solubility solution solvent spectra spectrum structure substances surface theory thermal titration vals vapour X-ray yield