Affiliation:
1. Chemistry Department, Faculty of Science, Mansoura University, Mansoura, A.R. Egypt
Abstract
Attempted Mannich reaction with the title compound 1 using morpholine and formalin led to 2 or 4 according to the reaction conditions. Whereas, on using primary amines the diindeno [1,2-b:2′,1′-e]pyridine (9-11) were obtained, in addition to 2-methylene-1,3-indandione (6), in case of 10 and 11.
However, the Mannich bases 13-15 were formed on treating 2-benzylidene-1,3-indandione with the appropriate secondary amine. The structures 2, 9-11 were confirmed via unambiguous syntheses.
Cited by
7 articles.
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