Application of quinoxaline based diimidazolium salt in palladium catalyzed cross-coupling reactions

Journal of Chemical Sciences

Mujahuddin M Siddiqui¹  Maravanji S Balakrishna1¹  Sajad A Bhat¹  Mohammed Waheed¹ 

[1] Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India$$

关键词: Carbene;    Imidazolium salt;    Suzuki-Miyaura coupling;    Mizoroki-Heck coupling;    Palladium (II).;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

The reaction of 2,3-bis(bromomethyl)quinoxaline with imidazole afforded the quinoxaline bridged diimidazolium salt (1) in good yield. Diimidazolium salt (1) in conjunction with Pd(OAc)2 was employed as a catalyst for C–C cross-coupling reactions. The diimidazolium salt was found to be efficient in catalyzing Suzuki-Miyaura cross-coupling reaction in ethanol under ambient conditions. Moderate to good selectivity of the trans product was observed in the Heck cross-coupling reaction. The molecular structure of 1 was confirmed by single crystal X-ray diffraction study.

【 授权许可】

Unknown