An efficient one-pot synthesis of dispiropyrrolidine derivatives through 1,3-dipolar cycloaddition reactions under ultrasound irradiation
作者:Hai Liu、Yi Zou、Yu Hu、Da-Qing Shi
DOI:10.1002/jhet.654
日期:2011.7
A series of dispiropyrrolidine derivatives were synthesized via the three‐component 1,3‐dipolar cycloaddition reaction of isatin, sarcosine and 5‐arylidene‐1,3‐thiazolidine‐2,4‐dione or 5‐arylidene‐4‐thioxo‐1,3‐thiazolidine‐2‐one in ethanol under ultrasound irradiation. This protocol has the advantages of mild reaction conditions, higher yields, and shorter reaction time. J. Heterocyclic Chem., (2011)
一系列二螺并吡咯烷衍生物是通过Isatin,肌氨酸和5-芳基-1,3-噻唑烷-2,4-二酮或5-芳基-4-硫代-1的三组分1,3-偶极环加成反应合成的,超声波照射下乙醇中的3-噻唑烷-2-酮 该方案的优点是反应条件温和,产率高,反应时间短。J.杂环化学。(2011)。