Rearrangement of 4-oxoalkane-1,1,2,2-tetracarbonitriles in the directed synthesis of aryl-substituted 2-(3-cyano-5-hydroxy-1,5-dihydro-2H-pyrrol-2-ylidene)malononitriles
作者:Mikhail Yu. Belikov、Sergey V. Fedoseev、Mikhail Yu. Ievlev、Oleg V. Ershov
DOI:10.1007/s10593-017-2170-1
日期:2017.9
3-Aryl-4-oxoalkane-1,1,2,2-tetracarbonitriles were synthesized by the interaction of 2-aryl ketones with tetracyanoethylene. Directed rearrangement of them in acetic acid in the presence of ammonium acetate led to the formation of 2-(3-cyano-5-hydroxy-1,5-dihydro-2Hpyrrol-2-ylidene)malononitriles containing an aryl substituent in conjugation with the acceptor buta-1,3-diene-1,1,3-tricarbonitrile moiety
通过2-芳基酮与四氰基乙烯的相互作用合成了3-芳基-4-氧代烷烃-1,1,2,2-四腈。在乙酸铵存在下,它们在乙酸中的直接重排导致形成具有芳基取代基的2-(3-氰基-5-羟基-1,5-二氢-2 H吡咯-2-亚烷基)丙二腈共轭形成与受体buta-1,3-diene-1,1,3-tricarbonitrile部分。