A new cyclometalation motif: Synthesis, structure, and reactivity of palladacycles that contain a chiral rhenium fragment in the backbone and are catalyst precursors for Heck reactions

被引:15
作者
Friedlein, FK [1 ]
Hampel, F [1 ]
Gladysz, JA [1 ]
机构
[1] Univ Erlangen Nurnberg, Inst Organ Chem, D-91054 Erlangen, Germany
关键词
D O I
10.1021/om0504708
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reactions of (R)-[(eta(5)-C5H5)Re(NO)(PPh3)(CH2-PPh2H)]X-+(-), mild base, and Pd(OAc)(2) yield the novel Pd-3(OAc)(4)-based palladacycle (R,R)-(eta 5-C5H4)Re(NO)-(PPh3)(mu-CH2PPh2)Pd(mu-OAc)(2)Pd(mu-OAc)(2)Pd(mu-PPh2CH2)-Re(Ph3P)(ON)(eta 5-C5H4), which has been characterized crystallographically and elaborated to dimeric halide-bridged and monomeric palladacycles that are effective catalyst precursors for the Heck reaction.
引用
收藏
页码:4103 / 4105
页数:3
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