Sulfur Insertion into the Molybdenum Acyl Bond of Mo(C(O)R)(S<sub>2</sub>COR)(CO)(P)<sub>2</sub> Complexes. Desulfurization of the Xanthate Ligand
作者:Leopoldo Contreras、Rafael F. Laínez、Antonio Pizzano、Luis Sánchez、Ernesto Carmona、Angeles Monge、Caridad Ruiz
DOI:10.1021/om990580c
日期:2000.2.1
desulfurization of the xanthate ligand of complexes Mo(C(O)Me)(S2COR)(CO)(PMe3)2 (R = Me, 1a; Et, 1b; i-Pr, 1c) occurs at room temperature with concomitant insertion of the sulfur atom into the Mo−acetyl bond to produce compounds Mo(κ2C,S-C(S)OR)(κ2O,S-OSCMe)(CO)(PMe3)2 (2a−c), which contain coordinated, bidentate alkoxythiocarbonyl, ROC(S), and monothioacetate, MeCOS-, ligands. The analogous rearrangement
配合物Mo(C(O)Me)(S 2 COR)(CO)(PMe 3)2(R = Me,1a ; Et,1b ; i -Pr,1c)的黄药配体的部分脱硫与硫原子成莫乙酰键的伴随插入,产生化合物的Mo(κ 2 C,S -C(S)OR)(κ 2 O,S -OSCMe)(CO)(PME 3)2(2A - ç),其含有配位,二齿烷氧基硫代羰,ROC(S),和monothioacetate,MeCOS - ,配体。dmpe衍生物1d的类似重排(DMPE =我2 PCH 2 CH 2 PME 2)得到了类似的物种,沫(κ 2 C,S C(S)O-我-Pr)(κ 2 O,S -SOCMe)(CO)(DMPE) (3),但是在这种情况下需要加热到100°C。化合物的monothiocarboxylate组2可以通过一个二齿黄原酸盐来代替,得到的Mo(κ 2 C,S -C(S)OR)(κ 2 S,S ' -S 2