British Abstracts: Pure chemistry and physiology. ser. A1926 |
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Trang 47
... ester has d23 2-084 , no 1 · 532 , b . p . 140-142 ° / 30 mm . Similarly , chlorine in carbon tetrachloride gives ( yield 75 % ) aß - dichloro - a - bromopropaldehyde , b . p . 81 ° / 45mm . , das 1-83 , n 1.511 , oxidised to aß ...
... ester has d23 2-084 , no 1 · 532 , b . p . 140-142 ° / 30 mm . Similarly , chlorine in carbon tetrachloride gives ( yield 75 % ) aß - dichloro - a - bromopropaldehyde , b . p . 81 ° / 45mm . , das 1-83 , n 1.511 , oxidised to aß ...
Trang 48
... ester were obtained . Methyl and ethyl dibromoglutarates were con- densed with the sodium derivatives of malonic , cyanoacetic , benzoylacetic , and acetoacetic esters . In each case a cyclobutane ester ( I ) and a bromo- cyclopropane ...
... ester were obtained . Methyl and ethyl dibromoglutarates were con- densed with the sodium derivatives of malonic , cyanoacetic , benzoylacetic , and acetoacetic esters . In each case a cyclobutane ester ( I ) and a bromo- cyclopropane ...
Trang 63
... ester which is hydrolysed to benzoic acid and " di amylene oxide . ' It is shown that the course of the change probably follows the authors ' RH scheme . Lippmann's " amylene hydride " is probably benzene and the ester is the benzoate ...
... ester which is hydrolysed to benzoic acid and " di amylene oxide . ' It is shown that the course of the change probably follows the authors ' RH scheme . Lippmann's " amylene hydride " is probably benzene and the ester is the benzoate ...
Trang 64
... ester , methyl 4 - bromomethyl - o - toluate , m . p . 56 ° , forms on hydrolysis 4 - hydroxymethyl - o - toluic acid , m . p . 142 ° . In this hydrolysis 4 : 4 ' - dicarboxy- 3 : 3 ' - dimethyldibenzyl ether , m . p . 222 ° , is also ...
... ester , methyl 4 - bromomethyl - o - toluate , m . p . 56 ° , forms on hydrolysis 4 - hydroxymethyl - o - toluic acid , m . p . 142 ° . In this hydrolysis 4 : 4 ' - dicarboxy- 3 : 3 ' - dimethyldibenzyl ether , m . p . 222 ° , is also ...
Trang 66
... ester is hydrogenated in methyl - alcoholic solution in the presence of palladium to ethyl d - 3 - methylcyclohexylacetate , b . p . 107-110 ° / 18 mm . , d0-9322 , n 1-4442 , [ x ] -7 ° 25 ' , which is hydro- lysed to d - 3 ...
... ester is hydrogenated in methyl - alcoholic solution in the presence of palladium to ethyl d - 3 - methylcyclohexylacetate , b . p . 107-110 ° / 18 mm . , d0-9322 , n 1-4442 , [ x ] -7 ° 25 ' , which is hydro- lysed to d - 3 ...
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A. A. ELDRIDGE absorption acetic acid acetic anhydride acetone action activity adsorption alcohol alkali aluminium aluminium chloride Amer ammonia ammonium anhydride aqueous solution atoms barium benzene benzyl Biochem boiling bromide calcium carbon dioxide catalyst Chem chemical chim chloric acid colloidal colour compounds concentration condensation containing converted copper corresponding crystallisation crystals curve decomp decomposition derivatives determined dextrose dilute dissociation effect electrolytes electrons ester ether ethyl ethyl alcohol F. G. WILLSON formation formed gives heated hydrate hydrazine hydrochloric acid hydrogen chloride hydrolysis increase iodide iodine ionisation ions ketone liquid magnesium mercury metals method mixture molecular molecules nickel nitrate nitric acid nitrogen obtained oxalate oxide oxidised oxygen P. W. CLUTTERBUCK phenyl Physik platinum potassium potassium hydroxide precipitate prepared presence pressure protein pyridine reaction reduced salt semicarbazone silver sodium hydroxide sols solubility spectra substances sulphate sulphide sulphuric acid temperature vapour whilst yields zinc