British Abstracts: Pure chemistry and physiology. ser. A1929 |
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Trang 308
... heated with aluminium chloride in light petroleum , affords 4 - keto - 1 : 23 : 4 - tetra- hydrofluoranthene , m . p . 98 ° ( semicarbazone , m . p . 250-251 ° ; oxime , m . p . 170-171 ° ) . Reduction of the ketone by Clemmensen's ...
... heated with aluminium chloride in light petroleum , affords 4 - keto - 1 : 23 : 4 - tetra- hydrofluoranthene , m . p . 98 ° ( semicarbazone , m . p . 250-251 ° ; oxime , m . p . 170-171 ° ) . Reduction of the ketone by Clemmensen's ...
Trang 330
... heated at 200 ° for 3 hrs . in sulphuric acid , gave dark red tetrabromoquinone- acridone . Sodium hydrogen sulphite reduces it to the di- and tetra - hydro - derivatives . By reducing dinitro- quinoneacridone , the deep violet diamino ...
... heated at 200 ° for 3 hrs . in sulphuric acid , gave dark red tetrabromoquinone- acridone . Sodium hydrogen sulphite reduces it to the di- and tetra - hydro - derivatives . By reducing dinitro- quinoneacridone , the deep violet diamino ...
Trang 562
... heated in a vacuum , gives 8 - phenyl - a- benzyl - n - valeric acid , b . p . 243-245 ° / 13 mm . ( yield 80 % ) . Thionyl chloride gives the acid chloride ( not isolated ) , which is converted by carbon disulphide and aluminium ...
... heated in a vacuum , gives 8 - phenyl - a- benzyl - n - valeric acid , b . p . 243-245 ° / 13 mm . ( yield 80 % ) . Thionyl chloride gives the acid chloride ( not isolated ) , which is converted by carbon disulphide and aluminium ...
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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