Novel crown ether functionalized imidazolium-based acidic ionic liquid catalyzed synthesis of pyrazole derivatives under solvent-free conditions
作者:Dayanand Patil、Dattatraya Chandam、Abhijeet Mulik、Suryabala Jagdale、Prasad Patil、Madhukar Deshmukh
DOI:10.1007/s11164-014-1782-7
日期:2015.9
[crown ether MIm] [HSO4] has been efficiently implemented for the synthesis of pyrazole derivatives using various substituted enaminones, hydrazine hydrate and phenyl hydrazine under solvent-free conditions. Structural novelty and task efficiency of the catalyst, high yields of desired products, greener approach attributing high atom economy and solvent-free conditions render this protocol suitable to
摘要有效 设计了一种新颖设计的新型冠醚官能化咪唑基可重复使用的酸性离子液体[冠醚MIm] [HSO 4 ],该方法可在无溶剂条件下使用各种取代的烯胺酮,水合肼和苯基肼合成吡唑衍生物。催化剂的结构新颖性和工作效率,所需产物的高收率,归因于高原子经济性和无溶剂条件的更绿色方法使该方案适合于应对当代有机化学的当前需求。在该方案中首次证明了使用冠醚官能化的离子液体作为催化剂的发明思想。 图形概要