Hidetoshi Isawa, H. Suga, A. Kakehi,
Feb 1, 2009
Citations
0
Influential Citations
5
Citations
Journal
Heterocycles
Abstract
The reactions of potassium l,3-bis(ethoxycarbonyl)indolizine-2-thiolates with ethyl 4-bromocrotonate afforded the corresponding indolizine derivatives having (E)-(3-ethoxycarbonyl-2-propenyl)thio, (E)- and (Z)-(3-ethoxycarbonyl-1-propenyl)thio group at the 2-position. The alkaline treatment of these S-alkylated indolizines gave the title compounds in good yields.