British Abstracts: Pure chemistry and physiology. ser. A1929 |
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Trang 197
... EtOH , m . p . 232-5-233-5 ° ( decomp . ) ; ethyl ester , m . p . 115-5-117.5 ° ; 1 : 5 - diphenyl - 3 - o - nitrophenylpyrazole , m . p . 116-117 ° . Alkaline hydrolysis of the ester vielded , besides the acid , a secondary product , m ...
... EtOH , m . p . 232-5-233-5 ° ( decomp . ) ; ethyl ester , m . p . 115-5-117.5 ° ; 1 : 5 - diphenyl - 3 - o - nitrophenylpyrazole , m . p . 116-117 ° . Alkaline hydrolysis of the ester vielded , besides the acid , a secondary product , m ...
Trang 558
... EtOH C.CO2Et CH CO , Et H , C CO H.C CO ( I. ) H2C C.OH H , C CO CH CO , Et CH CO , Et I being in equilibrium with its various mono- and di- cyclic enol forms . The reverse conversion of I into II is explained by a benzil - benzilic ...
... EtOH C.CO2Et CH CO , Et H , C CO H.C CO ( I. ) H2C C.OH H , C CO CH CO , Et CH CO , Et I being in equilibrium with its various mono- and di- cyclic enol forms . The reverse conversion of I into II is explained by a benzil - benzilic ...
Trang 574
... ( EtOH ) , m . p . 137-138 ° ; tartrate ( EtOH ) , reddish - violet , m . p . 159-162 ° ( decomp . ) ; citrate ( EtOH ) , dark violet , m . p . 130-131 ° . The malonate ( EtOH ) , wine - red , m . p . 107-108 ° , is obtained by treating ...
... ( EtOH ) , m . p . 137-138 ° ; tartrate ( EtOH ) , reddish - violet , m . p . 159-162 ° ( decomp . ) ; citrate ( EtOH ) , dark violet , m . p . 130-131 ° . The malonate ( EtOH ) , wine - red , m . p . 107-108 ° , is obtained by treating ...
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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