85365-59-9Relevant academic research and scientific papers
A CONVENIENT SYNTHESIS OF (+/-)-RETRONECINE
Niwa, Haruki,Kuroda, Akio,Yamada, Kiyoyuki
, p. 125 - 126 (1983)
Retronecine (1), the necine base of physiologically active pyrrolizidine alkaloids was synthesized in racemic form from ethyl 2,3,5,6-tetrahydro-1H-pyrrolizine-7-carboxylate (2) in five steps.
Enantioselective Synthesis of Seven Pyrrolizidine Diols from a Single Precursor
Chamberlin, A. Richard,Chung, John Y. L.
, p. 4425 - 4431 (2007/10/02)
The enantioselective synthesis of seven pyrrolizidine diols has been accomplished from a single, readily available intermediate.The key step of this general scheme involves an acetoxy-directed acyliminium ion-ketene dithioacetal cationic cyclization to gi
