Reaction of arsoles with iron carbonyls. Arsole → ferrole conversion

Template effects on the asymmetric cycloaddition reaction between 3,4-dimethyl-1-phenylarsole and diphenylvinylphosphine and their arsenic elimination reaction

“…Compared to the stable phosphole complexes in which a few phosphorus elimination reactions have been reported [2][3][4], arsenic elimination appeared to be a common phenomenon in the cycloaddition reactions involving arsoles [5][6][7]. For example, 2,3,4,5-tetramethyl-1-phenylarsole and 1,2,3,4,5-pentamethylarsole metal complexes readily undergo Diels-Alder reaction with acetylenedicarboxylic acid dimethyl ester.…”