1993 organo-arsenic compounds, nonmetal heterocycles organo-arsenic compounds, nonmetal heterocycles S 0117
-212Acyclic and Cyclic Bisarsonium Salts.-The bis(arsinoethyl) ethers (I) are quaternized with methyl iodide (II) to give the bisarsonium salts (III). The bisarsines (IV), however, undergo ether cleavage under these conditions. With the α,ω -dibromides (IX), the cyclic bisarsonium salts (X) are obtained. -(RZHECHITSKAYA, L. E.; GAMAYUROVA, V. S.; MUSIN, R