Reduction of the Formyl Group of Zinc Pheophorbide b in vitro and in vivo: a Model for the Chlorophyll b to a Transformation

Autor:	Wolfhart Rüdiger, Michael Helfrich, Verena Scheumann, Siegrid Schoch
Rok vydání:	1996
Předmět:	Chlorophyll b Stereochemistry chemistry.chemical_element Zinc Formyl group General Biochemistry Genetics and Molecular Biology In vitro chemistry.chemical_compound Transformation (genetics) chemistry Biochemistry In vivo Pheophorbide b Chemical reduction
Zdroj:	Zeitschrift für Naturforschung C. 51:185-194
ISSN:	1865-7125 0939-5075
Popis:	The chemical reduction of the formyl group of pheophorbide b with sodium cyanoborohy­ dride in methanol leads to 71-methoxy-and 71-hydroxy-pheophorbide a. The same reaction with zinc pheophorbide b yields in addition zinc pheophorbide a. This was characterized by mass and 1H -NMR spectroscopy. Infiltration of zinc pheophorbides a and b and of zinc 71-hydroxy-pheophorbide a into etiolated oat leaves yielded phytylated products. The best yield in the esterification was obtained with 71-hydroxy-pheophorbide a. Analysis of the products revealed the formation of zinc pheophytin a from all infiltrated compounds. The significance for the transformation of chlorophyll b into chlorophyll a is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5f70902a676c1a1eca326a0dd821562e https://doi.org/10.1515/znc-1996-3-409 Zobrazit plný text záznamu