Online Encyclopedia

GLUTARIC ACID, or NORMAL PYROTARTARIC...

Online Encyclopedia
Originally appearing in Volume V12, Page 145 of the 1911 Encyclopedia Britannica.
Spread the word: del.icio.us del.icio.us it!
GLUTARIC ACID, or NORMAL PYROTARTARIC ACID, H02C•CH2•CH2•CH2•CO2H, an organic acid prepared by the reduction of a-oxyglutaric acid with hydriodic acid, by reducing glutaconic acid, HO2C• CH2• CH:CH • CO2H, with sodium amalgam, by conversion of trimethylene bromide into the cyanide and hydrolysis of this compound, or from acetoacetic ester, which, in the form of its sodium derivative, condenses with /3=iodopropionic ester to form acetoglutaric ester, CH3•CO•CH(CO2C2H5)•CH2•CH2•CO2C2H5, from which glutaric acid is obtained by hydrolysis. It is also obtained when sebacic, stearic and oleic acids are oxidized with nitric acid. It crystallizes in large monoclinic prisms which melt at 97' 5° C., and distils between 3020 and 3040 C., practically without decomposition. It is soluble in water, alcohol and ether. By long heating the acid is converted into its anhydride, which, however, is obtained more readily by heating the silver salt of the acid with acetyl chloride. By distillation of the ammonium salt glutarimide, CH2(CH2•CP)2NH, is obtained; it forms small crystals melting at 151° to 152° C. and sublimes unchanged. On the alkyl glutaric acids, see C. Hell (Ber., 1889, 22, pp. 48, 6o), C. A. Bischoff (Ber., 1891, 24, p. 1041), K. Auwers (Ber., 1891, 24, p. 1923) and W. H. Perkin, junr. Grown. Chem. Soc., x896, 69, p. 268),
End of Article: GLUTARIC ACID, or NORMAL PYROTARTARIC ACID
[back]
GLUE (from the O. Fr. glu, bird-lime, from the Late...
[next]
GLUTEN

Additional information and Comments

There are no comments yet for this article.
» Add information or comments to this article.
Please link directly to this article:
Highlight the code below, right click and select "copy." Paste it into a website, email, or other HTML document.