منابع مشابه
Synthesis of alkyl-branched fatty acids
Alkyl-branched fatty compounds are of interest for industrial products in the cosmetics and lubricant areas. In this review, clayand zeolite-catalyzed isomerizations of unsaturated fatty compounds, especially of oleic acid, are discussed. While clay-catalyzed reactions give most complex mixtures of dimeric fatty acids and of monomeric so-called “isostearic acid”, the zeolite-catalyzed process y...
متن کاملSYNTHESIS OF a-AMINO-p-HYDROXY-n-BUTYRIC ACIDS VII. AN IMPROVED SYNTHESIS OF DL-ALLOTHREONINE
Several methods are available for the synthesis of DL-threonine (l-3). However, each of these involves the separation of threonine from a mixture containing varying proportions of the isomeric allothreonine. Recently it has been reported that derivatives of rm-allothreonine may be converted to DL-threonine in excellent yields (3-5). These developments make the preparation of nn-allothreonine of...
متن کاملThe utilization of butyric acid for the synthesis of cholesterol and fatty acids.
It has previously been found in this laboratory that in the biological synthesis of cholesterol the terminal methyl carbons of isovaleric acid are much more efficient carbon sources than the carboxyl carbons of the same compound and are also more effective sterol precursors than the carbon atoms of acetic acid (1). One explanation offered for these findings was that isovalerate is broken down t...
متن کاملCarbon Dioxide Utilization in the Synthesis of Acetic and Butyric Acids by Butyribacterium Rettgeri.
2 Winsor, C. P., and Clark, A. B., Ibid., 22, 400 (1936); Hecht, S., Haig, Ch., and Chase, A. M., Jour. Gen. Physiol., 20, 831 (1937); Wald, G., and Clark, A. B., Ibid., 21, 93 (1937); Hecht, S., these PROCEEDINGS, 23, 227 (1937). 3 Rowland, W. M., and Sloan, L. L., Jour. Opt. Soc. Am., 34, 601 (1944); Hecht, S., and Yun Hsia, Ibid., 35, 261 (1945). " Wolf, E., and Zerrahn-Wolf, G., Jour. Gen. ...
متن کاملInhibition of biohydrogen production by undissociated acetic and butyric acids.
Glucose fermentation to hydrogen results in the production of acetic and butyric acids. The inhibitory effect of these acids on hydrogen yield was examined by either adding these acids into the feed of continuous flow reactors (external acids), or by increasing glucose concentrations to increase the concentrations of acids produced by the bacteria (self-produced). Acids added to the feed at a c...
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1957
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.78.1577