2,6-Pyridinedicarbothioic acid

[1] PDTC can be synthesized in the laboratory by treating the diacid dichloride of pyridine-2,6-dicarboxylic with H2S in pyridine: This route produces the pyridinium salt of pyridinium-2,6-dicarbothioate.

Treatment of this orange-colored salt with sulfuric acid gives colorless PDTC, which can then be extracted with dichloromethane.

[2] The biosynthesis of PDTC remains unclear although some insights can be deduced from the genetics.

[3] It is suggested that Pseudomonas stutzeri may have acquired at least one of the genes by lateral transfer from mycobacteria.

[4] In a proposed biosynthetic sequence pyridine-2,6-dicarboxylic acid, a known bacterial metabolite,[4] is activated as its bis-adenosine monophosphate (AMP) derivative.

Skeletal formula of 2,6-pyridinedicarbothioic acid
Ball-and-stick model of the 2,6-pyridinedicarbothioic acid molecule
Structure of Fe(III) complex with two 2,6-pyridinedicarbothioate ligands. [ 6 ] Color code: yellow = S, blue = N and Fe, gray = C, red = O.