Sulfur derivatives of the natural polyarsenical Arsenicin A: biologically active, organometallic arsenic–sulfur cages related to the minerals realgar and Uzonite
Lu, Di; Arulmozhiraja, Sundaram; Coote, Michelle; Rae, A. David; Salem, Geoff; Willis, Anthony C.; Wild, S. Bruce; Benhenda, Shirine; Breitenbach, Valerie Lallemand; de Thé, Hugues; Zhai, Xiaoyi; Hogg, Philip J.; Dilda, Pierre J.
(±)-Arsenicin A (AsA), (±)-1, the first natural polyarsenical to be isolated, has the adamantane-type structure of the mineral arsenolite (As₄O₆), in which three of the oxygen atoms have been replaced by methylene groups to give an organometallic, arsenic–oxygen cage of C₂ symmetry. Heating of a benzene solution of AsA with aqueous sodium sulfide produces, by reductive desulfurization of the intermediate sulfur analog (±)-2, the monosulfide cage (±)-4, which contains two As–As bonds and which...[Show more]
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