Unusual Formation of Vinyl Ether Derivatives in the Reaction of Tributyltin Hydride with Fischer Carbene Complexes Anchored on a Chalcogen-Stabilized Iron Carbonyl Cluster
作者:Pradeep Mathur、Sundargopal Ghosh、Amitabha Sarkar、C. V. V. Satyanarayana、John E. Drake、Jincai Yang
DOI:10.1021/om970774x
日期:1997.12.1
M = W. 3: E = S; E‘ = Te; M = W) with excess Bu3SnH in hexane at 0 °C produces enol ether derivatives: (CO)6Fe2μ-EC(Ph)(H)C(E‘)C(H)(OEt)} ((Z)-4a: E, E‘ = Se. (E)-4b: E, E‘ = Se. (Z)-5a: E = S; E‘ = Te. (E)-5b: E = S; E‘ = Te). For E, E‘ = Se, using 1 equiv of Bu3SnH, the α-alkoxyallylstannane complex, (CO)6Fe2μ-Se(Ph)CC(Se)C(OEt)(H)SnBu3} (6), was isolated. The molecular structure of (E)-4b
铁的治疗2(CO)6 μ-EC(PH)C(E ')[C(OET)M(CO)5 ]}(1:E,E'=硒; M =铬2:E, E '=硒; M = W. 3:E = S; E'=碲; M = W)与过量的步3 SNH在己烷在0℃下产生烯醇醚衍生物:(CO)6的Fe 2 μ-EC (Ph)(H)C(E')C(H)(OEt)}((Z)-4a:E,E'= Se。(E)-4b:E,E'= Se。(Z)- 5a:E = S; E′= Te。(E)-5b:E = S; E'= Te)。对于E,E'= Se,使用1当量的Bu 3 SnH,α-烷氧基烯丙基锡烷络合物(CO)6 Fe 2 μ-Se(Ph)C C(Se)C(OEt)(H)SnBu 3 } (6),被隔离。通过X射线分析确认了(E)-4b的分子结构。