Unexpected reactivity of 2,5-dimethylthiophene towards TpMe2Ir(C2H4)2

被引：5
|
作者：
Paneque, M
Poveda, ML
Salazar, V
Carmona, E
Ruiz-Valero, C
机构：
[1] Univ Sevilla, CSIC, Inst Invest Quim, Dept Quim Inorgan, Seville 41092, Spain
[2] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain
来源：
INORGANICA CHIMICA ACTA | 2003年 / 345卷
关键词：
thiophenes; iridium; C-H activation; C-C coupling; pyrazolylborates;
D O I：
10.1016/S0020-1693(02)01290-2
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
2,5-Dimethylthiophene (2,5-Me2T) and Tp(Me2)Ir(C2H4)(2) react at 60 degreesC to give a mixture of two products, 3 and 4. Both derive from initial aromatic C-H bond activation, but the organic ligand of 4 results from additional aliphatic C-H cleavage and C-C coupling of the activated C-ar with a C-2 unit from the starting Ir compound. In the presence of 2,5-Me2T, 4 reacts further to yield a more complex structure 5 (characterized by X-ray methods) which, upon protonation, releases the elaborated dithiophene 6. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：367 / 369
页数：3
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