British Abstracts: Pure chemistry and physiology. ser. A1943 |
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Trang 109
... gives only 9.7 % and of C , H , N or NaOEt gives none ; use of KÖH - EtOH gives 25 % of ( II ) , much side - reaction occurring . o - OH · CH , CHO- ( T - NH , Bua in EtOH give 2-0 - hydroxyphenylreteneoxazole ( 51 % ) , m.p. 245-5-247 ...
... gives only 9.7 % and of C , H , N or NaOEt gives none ; use of KÖH - EtOH gives 25 % of ( II ) , much side - reaction occurring . o - OH · CH , CHO- ( T - NH , Bua in EtOH give 2-0 - hydroxyphenylreteneoxazole ( 51 % ) , m.p. 245-5-247 ...
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... gives CH2R.CH ( OH ) .CHR⚫CHO , dehydrated to CH2R • CH : CR · CHO ; at 385-410 ° / 20 atm . , decomp . to CH , R ... gives CHMe : CHEt ( 40 % ) and CHEt : CMe.CHO ( 187 % ) ; PraCHO at 400 ° ( H2 ) gives CHEt : CHPra ( I ) ( 51 ...
... gives CH2R.CH ( OH ) .CHR⚫CHO , dehydrated to CH2R • CH : CR · CHO ; at 385-410 ° / 20 atm . , decomp . to CH , R ... gives CHMe : CHEt ( 40 % ) and CHEt : CMe.CHO ( 187 % ) ; PraCHO at 400 ° ( H2 ) gives CHEt : CHPra ( I ) ( 51 ...
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... gives BzOH ( 34 ) and resin ( 46 % ) . Similarly , COPhEt in HF at 55 ° gives BzOH ( 59 ) , resin ( 30 ) , and CPhEt : CMe COPh ( 3.5 % ) , but at 99 ° gives only BzOH ( 344 ) and resin ( 60 % ) . In HF at 99 ° ( I ) gives resin ( 57 ) ...
... gives BzOH ( 34 ) and resin ( 46 % ) . Similarly , COPhEt in HF at 55 ° gives BzOH ( 59 ) , resin ( 30 ) , and CPhEt : CMe COPh ( 3.5 % ) , but at 99 ° gives only BzOH ( 344 ) and resin ( 60 % ) . In HF at 99 ° ( I ) gives resin ( 57 ) ...
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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