British Abstracts: Pure chemistry and physiology. ser. A1929 |
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... probably B - homo- chelidonine , m . p . 159-160 ° , and probably chel- erythrine . The bark of the large plants is rich in alkaloids and on account of the large leaves and their high alkaloidal content the plant is probably the best ...
... probably B - homo- chelidonine , m . p . 159-160 ° , and probably chel- erythrine . The bark of the large plants is rich in alkaloids and on account of the large leaves and their high alkaloidal content the plant is probably the best ...
Trang 797
... probably cyclic , is formed , probably from the A - compound by intra- molecular change . The B - compound may be decom- posed by sodium hydroxide and sodium peroxide and its sulphur content then determined . The decom- position of ...
... probably cyclic , is formed , probably from the A - compound by intra- molecular change . The B - compound may be decom- posed by sodium hydroxide and sodium peroxide and its sulphur content then determined . The decom- position of ...
Trang 1461
... probably I. H. BURTON . 15 Action of diazomethane on aromatic ketones . E. MOSETTIG and L. JOVANOVIĆ ( Monatsh . , 1929 , 53 and 54 , 427-437 ; cf. this vol . , 814 ) .- Treatment of acetophenone with ethereal methyl - alcoholic diazo ...
... probably I. H. BURTON . 15 Action of diazomethane on aromatic ketones . E. MOSETTIG and L. JOVANOVIĆ ( Monatsh . , 1929 , 53 and 54 , 427-437 ; cf. this vol . , 814 ) .- Treatment of acetophenone with ethereal methyl - alcoholic diazo ...
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A. A. ELDRIDGE absorption acetic acid acetic anhydride acetone acetyl action activity alkali aluminium Amer ammonia ammonium amount anhydride aqueous solution atoms bands barium benzene Biochem Biol bromide C. R. HARINGTON calcium carbon dioxide catalyst Chem CHEMICAL ABSTRACTS Chim chloroform coefficient colloidal colour compound Compt concentration constant containing converted copper corresponding crystals curves decomp decomposition decrease derivative determined dextrose dilute effect electrolytes electrons ester ether formation formed gives heated hydrate hydrochloric acid hydrogen chloride hydrolysis increase iodide iodine ionisation ions ketone liquid magnesium measured mercury metal method methyl alcohol mixture molecular molecules N. M. BLIGH nitrate nitrogen obtained oxide oxidised oxygen peroxide phenyl phosphate Physik potassium hydroxide precipitated prepared presence pressure Proc protein pyridine reaction reduced rend S. K. TWEEDY salts silver sodium hydroxide sols soluble spectra spectrum substance sulphate sulphide sulphuric acid temperature vapour velocity wave-length whilst X-ray yields Zentr zinc