Beiträge zur Kenntnis des chromophoren Systems der Corrine: XII [1]. Chemische Eigenschaften des Reaktionsproduktes aus Dicyanocobyrinsäure‐heptamethylester mit hypochloriger Säure

Contributions to the Knowledge of the Corrin Chromophore: XII [1]. Chemical Behaviour of the Reaction Product of Heptamethyl Dicyano‐cobyrinate with Hypochlorous Acid Heptamethyl chloro‐cyano‐5α, 10, 15‐trichloro‐6α, 14‐dihydroxy‐5,6,14,15‐tetrahydrocobyrinate (2) in CH3OH/H2SO4 yields with RuO2 under 50 bar hydrogen and at 100° during 2 h a mixture of heptamethyl dicyanocobyrinate (1) with an epimeric ester. Using deuterium instead of hydrogen in this reaction, C(13) comes out as the probable epimerization center.