British Abstracts: Pure chemistry and physiology. ser. A1929 |
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... acetic acid . R. LOCQUIN and V. CHERCHEZ ( Compt . rend . , 1929 , 188 , 177-179 ; cf. A. , 1928 , 744 ) .- Treatment of ethyl aminomalonate , either in the form of the sodium derivative or in the presence of pyridine , with carbonyl ...
... acetic acid . R. LOCQUIN and V. CHERCHEZ ( Compt . rend . , 1929 , 188 , 177-179 ; cf. A. , 1928 , 744 ) .- Treatment of ethyl aminomalonate , either in the form of the sodium derivative or in the presence of pyridine , with carbonyl ...
Trang 575
... acid and then with stannous chloride , there again results tetramethoxythianthrene ( m . p . 176 ° ) . Oxid- ation of the latter with dilute nitric acid in acetic acid I is provisionally assigned to salvianin ( monardæin ) chloride ( R ...
... acid and then with stannous chloride , there again results tetramethoxythianthrene ( m . p . 176 ° ) . Oxid- ation of the latter with dilute nitric acid in acetic acid I is provisionally assigned to salvianin ( monardæin ) chloride ( R ...
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... acid affords 4 - nitro - 3-2 ' 4 ' 5 ' - trimethoxy- phenylmeconine , m . p . 184 ° . Trimethoxyphenyl- meconine is readily oxidised by nitric acid ( d 1-48 ) in glacial acetic acid to 2 - methoxy - 5 - meconyl - p - benzo- quinone , m ...
... acid affords 4 - nitro - 3-2 ' 4 ' 5 ' - trimethoxy- phenylmeconine , m . p . 184 ° . Trimethoxyphenyl- meconine is readily oxidised by nitric acid ( d 1-48 ) in glacial acetic acid to 2 - methoxy - 5 - meconyl - p - benzo- quinone , m ...
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Thuật ngữ và cụm từ thông dụng
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