Synthesis of New Functionalized Indoles Based on Ethyl Indol-2-carboxylate
作者:Ahmed Boraei、El El Ashry、Assem Barakat、Hazem Ghabbour
DOI:10.3390/molecules21030333
日期:——
Successful alkylations of the nitrogen of ethyl indol-2-carboxylate were carried out using aq. KOH in acetone. The respective N-alkylated acids could be obtained without separating the N-alkylated esters by increasing the amount of KOH and water. The use of NaOMe in methanol led to transesterification instead of the alkylation, while the use of NaOEt led to low yields of the N-alkylated acids. Hydrazinolysis