Nitrogen-arsenic bonds reactions with

The use of hypervalent iodine reagents for heteroatom-heteroatom bond forming reactions is well established in the context of classical oxidation chemistry [1-11]. For example, oxidations of anilines to azobenzenes, thiols to disulfides, and sulfides to sulfoxides with aryl-A3-iodanes were documented decades ago [1-5]. During the last ten years, particular attention has also been given to oxidative transformations of compounds derived from heavier elements, including the interception of reaction intermediates or initially formed products with external nucleophiles. A second important development is the utilization of sulfonyliminoiodanes, ArI = NS02R, for heteroatom-nitrogen bond formation, especially for imidations of sulfur, selenium, phosphorus and arsenic com-... 

Ten bis(dialkylamino)-derivatives have been prepared from MeAsl2 and characterized, and cleavage of the As—bond is shown to occur on reaction with HgO, ROH, RSH, and HX. Transamination reactions between dimethylaminodlmethylarsine and secondary amines provide a convenient route to other Me2AsNR2 species, and data are presented for eleven such derivatives. Magnetic susceptibility, refraction, and n.m.r. data have been obtained for the compounds in the series Xj AsCl , where X = NR2, OR, or R, showing in the former back-co-ordination from nitrogen to arsenic. ... 

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