Abstraction of methyl from neutral Fischer-type carbene complexes: A new site for nucleophilic attack

被引：14
|
作者：
Toomey, LM [1 ]
Atwood, JD [1 ]
机构：
[1] SUNY BUFFALO,DEPT CHEM,BUFFALO,NY 14260
来源：
ORGANOMETALLICS | 1997年 / 16卷 / 03期
关键词：
D O I：
10.1021/om960678g
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Reactions of Fischer-type carbene complexes, M(CO)(5)(C(OMe)Ph) (M = Cr, W), with metal carbonyl anions (M'(-) = CpFe(CO)(2)(-), Re(CO)(5)(-), Mn(CO)(4)PPh(3)(-) Co(CO)(3)PPh(3)(-), Cp*Cr(CO)(3)(-), CpMo(CO)(3)(-)) result in demethylation of the carbene complexes. The products are M(CO)(5)C(O)Ph(-) and M'-Me, characterized by infrared and MMR spectroscopy. A slower rate for reaction with W(CO)(5)(C(OEt)Ph) in comparison to the methyl analogue is consistent with nucleophilic attack of the metal carbonyl anion on the methyl of the methoxy group of the carbene. This is a new type of nucleophilic attack on a Fischer-type carbene.
引用
收藏
页码：490 / 493
页数：4
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