British Abstracts: Pure chemistry and physiology. ser. A1940 |
Từ bên trong sách
Kết quả 1-3 trong 62
Trang 181
... derivatives is described . trans - Dehydroandrosterone cyanohydrin is hydrogenated ( PtO2 in AcOH at 70 ° ) to 3 - trans - 17- dihydroxy - 17 - aminomethylandrostane ( I ) , m.p. 222- 225 ° , [ x ] -16.5 ° + 1 ° in N - AcOH ( Ac , ...
... derivatives is described . trans - Dehydroandrosterone cyanohydrin is hydrogenated ( PtO2 in AcOH at 70 ° ) to 3 - trans - 17- dihydroxy - 17 - aminomethylandrostane ( I ) , m.p. 222- 225 ° , [ x ] -16.5 ° + 1 ° in N - AcOH ( Ac , ...
Trang 249
... derivative is also formed in this reaction . ( I ) and Br in C2H , Cl2 ( 1 · 5 hr . at room temp . ) yield Et 4 ... derivative , m.p. 180-181 ° ( decomp . ) ( Et ester , m.p. 135—136 ° ) ; 4 - NO2 - derivative , m.p. 163-164 ° 5 : 6 : 7 ...
... derivative is also formed in this reaction . ( I ) and Br in C2H , Cl2 ( 1 · 5 hr . at room temp . ) yield Et 4 ... derivative , m.p. 180-181 ° ( decomp . ) ( Et ester , m.p. 135—136 ° ) ; 4 - NO2 - derivative , m.p. 163-164 ° 5 : 6 : 7 ...
Trang 259
... derivative yields , in Ac2O at -10 ° , 2 - nitro - 1 - acetamidodibenzfuran ( Gil- man et al . , A. , 1939 , II , 276 ) , and in glacial AcOH , the Ac derivative , ( I ) , m.p. 216 ° , of 4 - nitro - 1 - amino- , m.p. 219-220 ...
... derivative yields , in Ac2O at -10 ° , 2 - nitro - 1 - acetamidodibenzfuran ( Gil- man et al . , A. , 1939 , II , 276 ) , and in glacial AcOH , the Ac derivative , ( I ) , m.p. 216 ° , of 4 - nitro - 1 - amino- , m.p. 219-220 ...
Nội dung
EXPERIMENTAL PHYSIOLOGY | |
1940 | 1 |
CHEMISTRY AND RELATED SUBJECTS | |
6 phần khác không được hiển thị
Ấn bản in khác - Xem tất cả
Thuật ngữ và cụm từ thông dụng
absorption absorption spectra Acad acid activation energy activity adsorbed alkali alloys Amer Anal analysis approx ation atoms Atti X Congr bands calc catalyst CCl4 Chem chemical Chim chloride CO₂ coeff colloidal compounds Compt concn const crystals curves decomp decreases described determined deuterons diffusion discussed dissociation effect electrolytes electron emission energy equation equilibrium EtOH Faraday Soc ferromagnetic film formation gases H₂ H₂O heat hydrogen hydrolysis increases intensity ionisation ions isotopes kg.-cal lattice layer liquid magnetic Me.v measured meson mesotrons metals method mixtures N₂ neutrons obtained oxidation paramagnetic particles phase Phys Physical Rev polarisation potential pptd pressure Proc protons Raman reaction rend Russ salts SiO2 solid solid solution solubility solutions solvent spectra spectrum structure surface temp theory thermal titration Trans vals vapour velocity viscosity X-ray