155630-05-0Relevant articles and documents
Heterocyclizations in the pyrido[2,3-b]pyrazine series
Blache,Gueiffier,Chavignon,Teulade,Milhavet,Viols,Chapat,Dauphin
, p. 161 - 166 (2007/10/02)
In this paper, we report the results of heterocyclizations in the pyrido[2,3-b]pyrazine series to give the pyrido[2,3-e] or [3,2-e]pyrrolo[1,2- a]pyrazine. The Clauson-Kaas reaction on 2,3-diaminopyridine is investigated; regioselectivity on the 3-amino group is shown by 1H- and 13C-nmr. Synthesis and reactivity of the original pyrazino[2,3-g]indolizine series is also reported.