Formation of Highly Functionalized Thiophenes by Reaction of Tetramethylthiourea, Acetylenic Esters, and α-Haloketones
作者:Issa Yavari、Alaleh Malekafzali
DOI:10.1002/jhet.644
日期:2013.7
The 1:1 zwitterionic intermediates generated by addition of tetramethylthiourea to dialkyl acetylenedicarboxylates are trapped by α‐haloketones to yield functionalized 2‐aminothiophenes in good yields.