212008-89-4Relevant academic research and scientific papers
Further insight from model experiments into a possible scenario concerning the origin of manzamine alkaloids
Wypych, Jean-Charles,Nguyen, Tuan Minh,Nuhant, Philippe,Benechie, Michel,Marazano, Christian
supporting information; experimental part, p. 5418 - 5421 (2009/03/12)
(Chemical Equation Presented) Without the isolation of intermediates, 5,6-dihydropyridinium salts and their nitrile derivatives were prepared as shown in the scheme. Cyclization in the presence of an aminopentadienal led to the formation of the AB ring system of the halicyclamines, or, under alternative conditions, the fused AB ring system of the manzamines. Tf= trifluoromethanesulfonyl.
A novel Diels-Alder approach to hydroisoquinolines
Baldwin, Jack E.,Spring, David R.,Whitehead, Roger C.
, p. 5417 - 5420 (2007/10/03)
A synthetic approach to functionalised hydroisoquinoline rings, using dihydropyridinium ions as dienophiles in the Diels-Alder reaction, is described.
