British Abstracts: Pure chemistry and physiology. ser. A1944 |
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Kết quả 1-3 trong 77
Trang 89
... Addition of HCl or HBr is not practicable because of the ease with which it undergoes the allylic rearrangement . In presence of HF as catalyst , ( I ) and p - OMe CH , NH , smoothly yield aa - dichloro - y - p - anisyl - B - methyl ...
... Addition of HCl or HBr is not practicable because of the ease with which it undergoes the allylic rearrangement . In presence of HF as catalyst , ( I ) and p - OMe CH , NH , smoothly yield aa - dichloro - y - p - anisyl - B - methyl ...
Trang 225
... addition to the CC or C : O ; in alkaline solution the reaction is at . and occurs by 1 : 4 - addition . Hydrogenations listed below are by H. - PdO , in EtOH ; acid and " alkali " denote addition of a little conc . HCl or KOH - EtOH ...
... addition to the CC or C : O ; in alkaline solution the reaction is at . and occurs by 1 : 4 - addition . Hydrogenations listed below are by H. - PdO , in EtOH ; acid and " alkali " denote addition of a little conc . HCl or KOH - EtOH ...
Trang 293
... addition of AICI , to the reaction products . Addition of C2H , to CH , proceeds by formation of EtCl if HCl is present , but direct addition by a surface reaction on AlCl , is possible . Since GaCl , is readily sol . in C.H , the ...
... addition of AICI , to the reaction products . Addition of C2H , to CH , proceeds by formation of EtCl if HCl is present , but direct addition by a surface reaction on AlCl , is possible . Since GaCl , is readily sol . in C.H , the ...
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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