An efficient protocol for synthesis of tetrahydrobenzo[b]pyrans using amino functionalized ionic liquid
作者:P.P. Salvi、A.M. Mandhare、A.S. Sartape、D.K. Pawar、S.H. Han、S.S. Kolekar
DOI:10.1016/j.crci.2011.02.007
日期:2011.10
functionalized basic ionic liquid, 4-amino-1-(2,3-dihydroxy propyl) pyridinium hydroxide [ADPPY] [OH], has been introduced as a catalyst for the synthesis of tetrahydrobenzo[b]pyrans under mild conditions. The desired products can be separated directly from the reaction mixture with high purity. Only 10 mol% catalyst was needed with a sequestration time of 10 min. In addition, the ionic liquid used can be
摘要 引入了一种新型官能化碱性离子液体 4-氨基-1-(2,3-二羟基丙基) 吡啶鎓氢氧化物 [ADPPY] [OH] 作为催化剂,在温和条件下合成四氢苯并 [b] 吡喃。所需产物可以直接从反应混合物中以高纯度分离。仅需要 10 mol% 的催化剂,螯合时间为 10 分钟。此外,所使用的离子液体可以再生和循环多次,而不会显着损失活性。