in CH2Cl2 byproducts: (CH3)3CAs(S2N2); (N2); using Schlenk techniques; dissolving of t-BuAsCl2 in CH2Cl2; addn.dropwise at room temp. to stirred soln. of ((n-Bu)2Sn(S2N2))2 in CH2Cl2 , stirring at room temp. overnight; concn., filtration through glass pipet with Celite onto Bio-Beads S-X8 column, elution with CH2Cl2;

in pentane T=-78°C; 0.5 h;

arsenic(III) chloride; magnesium in tetrahydrofuran

sodium in diethyl ether

arsenic(III) chloride; magnesium in tetrahydrofuran 0.583333 h; Heating; Further byproducts given;

in tetrahydrofuran; pentane T=-78°C; 2 h; Yield given. Further byproducts given. Yields of byproduct given;