British Abstracts: Pure chemistry and physiology. ser. A1943 |
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Kết quả 1-3 trong 98
Trang 19
... yield of hydroxyglutamic acid ( from casein- ogen ) is greater with the HCl hydrolysis than with the longer H2SO ... yield is 4.1 % from P. officinalis , and 2 · 3 % from P. elatior . The free saponin has m.p. 235-237 ° ( decomp ...
... yield of hydroxyglutamic acid ( from casein- ogen ) is greater with the HCl hydrolysis than with the longer H2SO ... yield is 4.1 % from P. officinalis , and 2 · 3 % from P. elatior . The free saponin has m.p. 235-237 ° ( decomp ...
Trang 29
... yield 2 : 4 : 6 : 1 : 3 - C , HMe , ( OH ) 2 ; with ( III ) , some HCO , H and ( probably ) a C - methyl- or -dimethyl - B - resorcylic acid are also formed . 2 : 2 ' - Dihydroxy - di - a - naphthylmethane gives an . improved yield ( 75 ...
... yield 2 : 4 : 6 : 1 : 3 - C , HMe , ( OH ) 2 ; with ( III ) , some HCO , H and ( probably ) a C - methyl- or -dimethyl - B - resorcylic acid are also formed . 2 : 2 ' - Dihydroxy - di - a - naphthylmethane gives an . improved yield ( 75 ...
Trang 173
... yield into 4 - amino - 2 - phenylquinoline , m.p. 163-5-164.5 ° , by reaction with KNH , in liquid NH ̧ . Almost quant . yields are obtained in the presence of KNO , or of Hg . Analogously 2 - phenyl - 6 - methylquinol- ne - 4 ...
... yield into 4 - amino - 2 - phenylquinoline , m.p. 163-5-164.5 ° , by reaction with KNH , in liquid NH ̧ . Almost quant . yields are obtained in the presence of KNO , or of Hg . Analogously 2 - phenyl - 6 - methylquinol- ne - 4 ...
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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