Scientists at Ohio University Target Inorganic Chemistry

2011 OCT 14 -- According to the authors of recent research published in the journal Inorganic Chemistry, "A stable yellow derivative of cobyrinic acid heptamethyl ester, (5R,6R)-Co alpha,Co beta-dicyano-5,6-dihydro-S-hydroxy-heptamethylcob(III)yrinate-c,6-lactone (DCSYCbs), was prepared from dicyanocobyrinic acid heptamethyl ester (DCCbs). The CS carbon is oxidized and the c side chain cyclized to form a lactone at C6; the 13 atom, 14 pi-e(-) delocalized system of corrins is interrupted, giving a triazamethine system with four conjugated double bonds between N22 and N24 and an isolated double bond between N21 and C4."

"Stable yellow...

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