Interaction of 3, 4-dinitro-1-methylpyrrole with secondary amines: alternative formation of pyrrolines or cine substitution products

G Devincenzis, P Mencarelli…

Index: Devincenzis, Giuseppe; Mencarelli, Paolo; Stegel, Franco Journal of Organic Chemistry, 1983 , vol. 48, # 2 p. 162 - 166

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Citation Number: 5

Abstract

Results (A) Reaction of 1 with Piperidine. At Room Temperature with a Tenfold Excess of Piperidine. Under these conditions pyrroline 4a is the only product. It was characterized by'H NMR and CI mass spectroscopy, which showed an intense (M+ 1)+ peak. Pyrroliie 4a, like other related compounds such as 4, 5-bis (dialkylamino)-4, 5-dihydroimida~ oles,~ shows a very weak molecular peak in E1 mass spectroscopy. A nitro enamine structure, similar to ...