malononitrile under Fe(II) catalysis. Alkyl 5-amino-4-cyano-1H-pyrrole-2-carboxylates are excellent building blocks for various annulation reactions, leading to new derivatives of 1H-pyrrolo[1,2-a]imidazole and pyrrolo[2,3-d]pyrimidine. The DFT calculations of mechanistic details of alkyl 5-amino-4-cyano-1H-pyrrole-2-carboxylate formation are presented.
已经开发了一种完全原子经济的多米诺骨牌方法,该方法通过在Fe(II)催化下,将5烷氧基
异恶唑与
丙二腈进行反硝化来制备5-
氨基-4-
氰基-1 H-
吡咯-2-羧酸烷基酯。5-
氨基-4-
氰基-1 H-
吡咯-2-羧酸烷基酯是各种环化反应的极好基石,从而导致了1 H-
吡咯并[1,2- a ]
咪唑和
吡咯并[2,3-的新衍
生物d ]
嘧啶。提出了5-
氨基-4-
氰基-1 H-
吡咯-2-羧酸烷基酯形成机理的DFT计算方法。