British Abstracts: Pure chemistry and physiology. ser. A1943 |
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... obtained from rmer by heating at 200-220 ° . 2 Hydrogenation ( Pt ; Ni ) of phenanthraquinone ( modified and purification ) gives mainly cis - syn compounds . H2 - PtO , OH at 4 atm . gives slowly a - cis - syn - cis ...
... obtained from rmer by heating at 200-220 ° . 2 Hydrogenation ( Pt ; Ni ) of phenanthraquinone ( modified and purification ) gives mainly cis - syn compounds . H2 - PtO , OH at 4 atm . gives slowly a - cis - syn - cis ...
Trang 139
... obtained by treatment of 2 : 4 : 6 : 1- ( OMe ) , CH , Me.COMe ( II ) with EtOAc and Na at 115-120 ° , methylation ( MeI in COMe ) , and cyclisation ( HBr at room temp . ) . ( I ) with EtCO , Na and ( EtCO ) 2O at 180-190 ° yields the ...
... obtained by treatment of 2 : 4 : 6 : 1- ( OMe ) , CH , Me.COMe ( II ) with EtOAc and Na at 115-120 ° , methylation ( MeI in COMe ) , and cyclisation ( HBr at room temp . ) . ( I ) with EtCO , Na and ( EtCO ) 2O at 180-190 ° yields the ...
Trang 369
... obtained by both methods in only one form . Cu salicylaldehyde - p ' - nitroanil , + C , H , N and ' anhyd . , " m.p. 309 ° ( decomp . ) , and -a - naphthylimine , m.p. 241.5 ° , are obtained by method ( b ) . 2 : 1 - OH - C , H , CHO ...
... obtained by both methods in only one form . Cu salicylaldehyde - p ' - nitroanil , + C , H , N and ' anhyd . , " m.p. 309 ° ( decomp . ) , and -a - naphthylimine , m.p. 241.5 ° , are obtained by method ( b ) . 2 : 1 - OH - C , H , CHO ...
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absorption absorption spectra Acad acetate acid AcOH activity adsorption alkali Amer Anal analysis ation atoms boiling calc catalyst cellulose CHCI Chem chemical chloride CHPh CO₂ CO₂H coeff colour compounds Compt conc concn const containing converted corr cryst crystals curves decomp decreases derivatives described determined diazotised dioxan discussed effect electrolytes electron energy equilibrium ester ether EtOH formation formed Geol gives H₂ H₂O H₂SO heat hydrochloride hydrogen hydrolysed increases ionisation ions isomerised ketone lattice liquid measurements MeOH metal method methyl minerals mixtures NaOH obtained oxidation oxidised oxime particles phenols PhOH Physical Rev picrate polarisation polymerisation pptd pptn prep presence pressure reaction reagent reduced rend room temp salts semicarbazone solubility solution solvent spectra spectrum structure substances surface theory thermal titration vals vapour X-ray yield