Toreki, Robert; Vaughan, G. Alan; Schrock, Richard R., Journal of the American Chemical Society, 1993, vol. 115, # 1, p. 127 - 137
作者:Toreki, Robert、Vaughan, G. Alan、Schrock, Richard R.、Davis, William M.
DOI:——
日期:——
Toreki, Robert; Schrock, Richard R.; Davis, William M., Journal of the American Chemical Society, 1992, vol. 114, # 9, p. 3367 - 3380
作者:Toreki, Robert、Schrock, Richard R.、Davis, William M.
DOI:——
日期:——
A well-defined rhenium(VII) olefin metathesis catalyst
作者:Robert Toreki、Richard R. Schrock
DOI:10.1021/ja00162a071
日期:1990.3
tungsten, and rhenium are the three most active metals in classical olefin metathesis systems. Molybdenum (VI)sup 2} and tungsten(VI)sup 3} alkylidene complexes of the type M-(CHRprime})(NAr)(OR)sub 2} (Ar = 2,6-Csub 6}Hsub 3}-i-Prsub 2}) have been shown to be well-behaved olefin metathesiscatalysts with an activity that can be controlled through the choice of OR. Although several rhenium alkylidene
钼钨和铼是经典烯烃复分解系统中三种最活泼的金属。钼 (VI)sup 2} 和钨 (VI)sup 3} 型 M-(CHRprime})(NAr)(OR)sub 2} 亚烷基配合物 (Ar = 2,6-Csub 6}Hsub 3}-i-Prsub 2}) 已被证明是性能良好的烯烃复分解催化剂,其活性可以通过选择 OR 来控制。尽管已经报道了几种铼亚烷基配合物,但没有一种表现出任何可证实的复分解活性,即使是对应变环烯烃如降冰片烯也是如此。由于 Re三键}CR双素数}和 M双键}NR双素数}(M = Mo 或 W)可被视为等电子单元,因此作为烯烃复分解催化剂的合理候选者是 Re(CHR 素数})(CR双素数})(OR)sub 2}。
Conversion of rhenium alkylidyne complexes that contain unsupported metal-metal double bonds into relatives that contain μ-alkylidyne ligands
作者:Robert Toreki、Richard R. Schrock、William M. Davis
DOI:10.1016/0022-328x(96)06264-x
日期:1996.8
Photolysis of compounds of the type [Re(CCMe2R)(OR′)2] (R Me or Ph; OR′ O′Bu, OCMe2(CF3), or OCMe(CF3)2) in benzene with a medium pressure mercury lamp yields compounds of the type [Re(OR′)2]2(μ-CCMe2R)2 in an intramolecular and irreversible manner. [Re(CCMe2R)(OR′)2]2 and [Re(OR′)2]2(μ-CCMe2R)2 (OR′ O′Bu or OCMe2(CF3)2) both react with excess carbon monoxide in several solvents to afford the