British Abstracts: Pure chemistry and physiology. ser. A1926 |
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Trang 48
... condenses to the sodium derivative of ethyl ketodicyclopentanetricarboxylate ( III ) . The cyclo- butane ester predominates ( yield 70-80 % in one case ) when the condensation is carried out in absence of alcohol , e.g. , in benzene ...
... condenses to the sodium derivative of ethyl ketodicyclopentanetricarboxylate ( III ) . The cyclo- butane ester predominates ( yield 70-80 % in one case ) when the condensation is carried out in absence of alcohol , e.g. , in benzene ...
Trang 59
... condensation product , insoluble in alkali , which is probably the corresponding tetranitrodinaphthylethane . 1 ... condenses with ethyl acetoacetate in the presence of sodium , yielding ethyl 2 : 4 - dinitro - a - naphthylacetoacetate ...
... condensation product , insoluble in alkali , which is probably the corresponding tetranitrodinaphthylethane . 1 ... condenses with ethyl acetoacetate in the presence of sodium , yielding ethyl 2 : 4 - dinitro - a - naphthylacetoacetate ...
Trang 60
... condensation of ẞ - naphthol with oxalyl chloride yields the lactone of hydroxynaphthyl- glyoxylic acid ( A. , 1917 , i , 204 ) , malonyl chloride and B - naphthol yield , under identical conditions , B - dinaphthyl malonate , m . p ...
... condensation of ẞ - naphthol with oxalyl chloride yields the lactone of hydroxynaphthyl- glyoxylic acid ( A. , 1917 , i , 204 ) , malonyl chloride and B - naphthol yield , under identical conditions , B - dinaphthyl malonate , m . p ...
Trang 68
... condenses readily with ethyl acetoacetate at 100 ° to form ethyl 8 - methoxy - 2 - methylquinoline - 3 - carb- oxylate ... condensation of the new aldehyde with ethyl acetoacetate at 160 ° , 8 - methoxy - 3 - acetylcarbostyril , m . p ...
... condenses readily with ethyl acetoacetate at 100 ° to form ethyl 8 - methoxy - 2 - methylquinoline - 3 - carb- oxylate ... condensation of the new aldehyde with ethyl acetoacetate at 160 ° , 8 - methoxy - 3 - acetylcarbostyril , m . p ...
Trang 74
... condensation of 3 : 4 - di- methoxyphenylacetalde- hyde with acetophloro- COMe glucinaldehyde dimethyl ether , the oxonium chloride ( III ) being formed ( cf. Drumm , A. , 1923 , i , 1221 ) , which on reduction with platinum - black ...
... condensation of 3 : 4 - di- methoxyphenylacetalde- hyde with acetophloro- COMe glucinaldehyde dimethyl ether , the oxonium chloride ( III ) being formed ( cf. Drumm , A. , 1923 , i , 1221 ) , which on reduction with platinum - black ...
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Thuật ngữ và cụm từ thông dụng
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