106551-17-1Relevant articles and documents
Preparation of Pyrido- and Azepino-fused Cyclazines
Noguchi, Michihiko,Tanigawa, Noriyuki,Kajigaeshi, Shoji
, p. 3444 - 3447 (1985)
Pyrido-and azepino-fused cyclazines were obtained by the reaction of the corresponding pyrido-and azepinoindolizines with electron-deficient acetylenes in the presence of appropriate oxidants.The reaction pathway of their preparation was proposed to be a sequence of Michael addition of indolizine to acetylene, 10?-electrocyclic reaction of Michael adduct, and dehydrogenation by means of the chemical conversions of the isolated intermediates.