...
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Selective reduction of formamides to O-silylated hemiaminals or methylamines with HSiMe2Ph catalyzed by iridium complexes
【24h】

Selective reduction of formamides to O-silylated hemiaminals or methylamines with HSiMe2Ph catalyzed by iridium complexes

机译:用铱络合物催化的Hsime2ph对O-甲硅烷基化的半胺或甲胺选择性还原甲酰胺

获取原文
获取原文并翻译 | 示例
           

摘要

The reaction of (4-methyl-pyridin-2-iloxy)ditertbutylsilane (NSitBu-H, 1) with [IrCl(coe)(2)](2) affords the iridium(iii) complex [Ir(H)(Cl)((2)-NSitBu)(coe)] (2), which has been fully characterized including X-ray diffraction studies. The reaction of 2 with AgCF3SO3 leads to the formation of species [Ir(H)(CF3SO3)((2)-NSitBu)(coe)] (3). The iridium complexes 2 and 3 are effective catalysts for the reduction of formamides with HSiMe2Ph. The selectivity of the reduction process depends on the catalyst. Thus, by using complex 2, with a chloride ancillary ligand, it has been possible to selectively obtain the corresponding O-silylated hemiaminal by reaction of formamides with one equivalent of HSiMe2Ph, while complex 3, with a triflate ligand instead of chloride, catalyzed the selective reduction of formamides to the corresponding methylamine.
机译:(4-甲基 - 吡啶-2-甲氧基)二苯乙烯硅烷(NSITBU-H,1)与[IRCL(COE)(2)](2)的反应提供铱(III)复合物[IR(H)(CL) ((2)-NSITBU)(COE)](2)已完全表征,包括X射线衍射研究。 用AgCF 3SO 3的2反应导致物质[IR(H)(CF 3 SO 3)((2)-NSITBU)(COE)](3)的形成。 铱配合物2和3是用于减少与Hsime2ph的甲酰胺的有效催化剂。 还原过程的选择性取决于催化剂。 因此,通过使用氯化物辅助配体使用复合物2,可以通过甲酰胺的反应选择性地通过甲酰胺与Hsime2ph的反应选择相应的O-甲硅烷基化的半甲基,而复合物3,用三氟甲酸酯配体代替氯,催化 选择性将甲酰胺的还原为相应的甲胺。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号