Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

N-Butylmalonic acid

Dicyclohexylcarbodiimide n-Butylmalonic acid ethyl ester Hydrazo benzene... [Pg.717]

The separate extracts are made acid to Congo paper with concentrated HCI, extracted with ethyl acetate, the extracts are washed neutral with a little water, dried and concentrated under vacuum. The colorless oil which remains is recrystallized twice from ether/petroleum ether, whereupon n-butylmalonic acid-N,N -diphenylhydrazide is obtained in the form of short needles which melt at 116°-118°C. [Pg.718]

A mixture comprising 108 g of phenyl hydrazine and 216 g of the diethyl ester of n-butylmalonic acid is heated on an oil bath at 170°-180°C for 12 hours. The residue is taken up with water in which an alkaline compound has been dissolved and acetic acid is added to precipitate 4-n-butyl-2-phenyl-pyrazolidine-3,5-dione. The product is a white crystalline solid having a MP 103°C. It is soluble in acetone and benzene, soluble in hot condition in methanol and ethanol and insoluble in water. [Pg.2334]

Butylpropanedlolc acid n-ButylmalonIc acid C7H12O4 534-59-8 160.168 pr(w) 104.5 vs H20 sEt0H, eth... [Pg.231]

See other pages where N-Butylmalonic acid is mentioned: [Pg.354]    [Pg.488]    [Pg.1149]    [Pg.354]    [Pg.488]    [Pg.354]    [Pg.488]    [Pg.1170]    [Pg.717]    [Pg.2333]    [Pg.2586]    [Pg.223]    [Pg.354]    [Pg.488]    [Pg.354]    [Pg.488]    [Pg.1149]   
See also in sourсe #XX -- [ Pg.488 ]



SEARCH



Caproic acid (from ethyl n-butylmalonate)

N-Butylmalonic acid ethyl ester

Sec.-Butyl magnesium bromide n-Butylmalonic acid

© 2024 chempedia.info