British Abstracts: Pure chemistry and physiology. ser. A1944 |
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... hydrogenation of 5 : 6- or 4 : 5 - oxido - compounds . P. A. Plattner , T. Petrzilka , and W. Lang ( Helv . Chim . Acta , 1944 , 27 , 513-524 ) .- Hydrogenation of cholesteryl acetate a - oxide ( I ) leads smoothly to the production of ...
... hydrogenation of 5 : 6- or 4 : 5 - oxido - compounds . P. A. Plattner , T. Petrzilka , and W. Lang ( Helv . Chim . Acta , 1944 , 27 , 513-524 ) .- Hydrogenation of cholesteryl acetate a - oxide ( I ) leads smoothly to the production of ...
Trang 253
... hydrogenation of the ( II ) to mainly 1 : 2 : 3 : 4 - tetra- ( III ) with some 9 : 10 - di- ( IV ) and s - octa- hydroanthracene . The amounts of H , and hydrogenated products depend on the temp . and ratio of ( I ) to ( II ) . Reaction ...
... hydrogenation of the ( II ) to mainly 1 : 2 : 3 : 4 - tetra- ( III ) with some 9 : 10 - di- ( IV ) and s - octa- hydroanthracene . The amounts of H , and hydrogenated products depend on the temp . and ratio of ( I ) to ( II ) . Reaction ...
Trang 377
... hydrogenated at 140-150 ° to 3 - acetyl - 2 4 - dimethyl - 5 - ethylpyrrole ( 30-36 % ) , m.p. 159-160 ° 4 ( ? 106-107 ° ) . Hydrogenation of ( I ) at 170 ° gives Et 2 : 4 - dimethyl- 3 - ethylpyrrole - 5 - carboxylate ( 95 % ) . That ...
... hydrogenated at 140-150 ° to 3 - acetyl - 2 4 - dimethyl - 5 - ethylpyrrole ( 30-36 % ) , m.p. 159-160 ° 4 ( ? 106-107 ° ) . Hydrogenation of ( I ) at 170 ° gives Et 2 : 4 - dimethyl- 3 - ethylpyrrole - 5 - carboxylate ( 95 % ) . That ...
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absorption spectra Acad acetate acid AcOH activity adsorbed adsorption alkali alloys Amer anilide ation atoms bands boiling calc catalyst CHCI Chem chemical chloride CHMe CO₂ CO₂H coeff compounds Compt conc concn const containing converted corr cryst crystals curves decomp decrease dehydrogenation derivative determined diffusion dioxan discussed dissociation effect electrolytes electron energy equation equilibrium ester Et₂O EtOH eutectic fluorescence formation formed gives H₂ H₂O H₂SO heat hydrochloride hydrogen hydrolysed increases intensity investigated ions isomerides isomerisation ketone Kinetics Kolloid-Z lattice liquid measured MeOH metal method mixture NaCl NaOH obtained oxidation oxidised oxime particles phase PhOH Physical Rev picrate polymerisation prep presence pressure Proc Raman reaction reduced rend room temp salt semicarbazone solid solid solution solubility solution solvent spectrum structure substances surface theory thermal vals viscosity X-ray yield