Stereochemical Course of the Formation of theC(7)-Formyl Group from a Chiral Methyl Group during the Transformation of Chlorophyllidea into Chlorophyllideb
作者:Peter M. Shoolingin-Jordan、Stephen C. Williams
DOI:10.1002/hlca.200390344
日期:2003.12
The biosynthesis of chlorophyll a and chlorophyll b from (2R,3R)- and (2S,3S)-5-amino[2,3-14C2,2,3-2H2,2,3-3H2]levulinic acid in greening barley has established that chlorophyllide a oxidase catalyses the transformation of the methylgroup at C(7) of chlorophyllide a into the CHO group of chlorophyllide b with the loss of HSi from the 7-(hydroxymethyl)chlorophyllide intermediate.
Transformations of Acids in the Course of Ozonolysis of Oxygen-containing Derivatives of Cycloparaffins
作者:A. M. Syroezhko、O. Yu. Begak
DOI:10.1023/b:rjac.0000008316.31725.9f
日期:2003.8
Transformations of monocarboxylic, dicarboxylic, and keto acids in the course of low-temperature ozonolysis were studied using the corresponding C-14 labeled compounds.