Formation of Novel Tetrasulfido Tin Complexes and Their Ability To Catalyze the Cyclotrimerization of Aryl Isocyanates
作者:Stephen R. Foley、Glenn P. A. Yap、Darrin S. Richeson
DOI:10.1021/om990405w
日期:1999.11.1
Unusual cyclic tin tetrasulfido complexes (CyNC(R)NCy)[N(SiMe3)2]}SnS4 (Cy = cyclohexyl; R = Me (3), tBu (4)) were prepared by the reaction of elemental sulfur with newly reported divalent tin starting materials [CyNC(R)NCy]Sn[N(SiMe3)2] (R = Me (1), tBu (2)). Compounds 3 and 4 were further converted to dimeric bridging sulfido complexes, (CyNC(R)NCy)[N(SiMe3)2]Sn(μ-S)}2 (R = Me (5), tBu (6)), which