Solvent-dependent conformation of a regioselective amylose carbamate: Amylose-2-acetyl-3,6-bis(phenylcarbamate)

Conformation of Amylose in DMSO Probed by Pyrene Excimer Fluorescence

algae ANIMALS FUNGI Red algae SLIME MOLDS PROKARYOTES Glycogen Glycogen Amylose Paramylon Amylose Amylose

Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive o...

The enzymic utilization of sucrose in the synthesis of amylose and derivatives of amylose, using phosphorylases.

The synthesis of polysaccharides constitutes a challenge to organic chemists. This class of compounds is of current interest because of its importance in biological systemsl'2. Synthetic methods based on classical chemical manipulations are limited in applicabiiity: using these methods it is difficult to form glycosidic linkages stereospecifically, or to generate polymers of high molecular v,'e...

Effect of orientation on the physical properties of potato amylose and high-amylose corn starch films.

The effect of orientation on the properties of amylose and starch films was studied in order to determine if film strength, flexibility, and water resistance could be improved. Potato amylose and high (70%) amylose corn starch were peracetylated, cast into films, stretched in hot glycerol 1-6 times the original length, and deacetylated. Molecular orientation of potato amylose films was much hig...

Regioselective solvent-dependent benzannulation of conjugated enynes.

The transformation of enynes under cobalt-catalysis leads to symmetrical benzannulation products in dichloromethane. In tetrahydrofuran the cobalt-catalysed reactions afforded the unprecedented unsymmetrical benzannulation products in moderate to good yields and good regioselectivities. In addition, cyclotrimerisation of the alkyne subunit can be realised when electron-deficient enynes are appl...