Compounds with Sulfur of Oxidation Number II

This volume continues the description of acyclic sulfur(II)-nitrogen compounds with two-coordinate sulfur. N,N,N',N'-Tetraorganyl-substituted diaminosulfanes are generally prepared by reacting secondary amines with SCl2. N,N,N',N'-Tetraalkyl-diamino-sulfanes form adducts with boron compounds and complexes with transition metals. Carbon disulfide and various reagents of the X=C=Y type can be readily inserted into the S-N bonds. R2NSNR2 is reacted with CS2 to give R2NC(S)-Sn-C(S)NR2, n z 2. Reactions of R2NSNR2 with isocyanate and isothiocyanate, R'N=C=Y (Y = O,S), produce R2NSN(R')C(Y)NR2. The biological activity of diaminosulfanes with the appropriate substituents (e.g., R-OC(O), R = 2,2-dimethyl-2,3-dihydro-7-yl-benzofuran) has been explored.