Heterocyclization of michael adducts of β-diketones with arylmethylidene derivatives of malononitrile dimers
作者:A. Yu. Alekseeva、D. L. Mikhailov、I. N. Bardasov、O. V. Ershov、O. E. Nasakin、A. N. Lyshchikov
DOI:10.1134/s1070428014020171
日期:2014.2
Reaction of arylmethylidene derivatives of malononitrile dimer with 1,3-cyclohexanediones in anhydrous methanol in the presence of sodium methylate as catalyst affords 4-amino-5-aryl-2-methoxy-6-oxo-5,6,7,8,9,10-hexahydrobenzo[b][1,8]naphthyridine-3-carbonitrile. In the presence of strong electron-donor substituents in the benzene ring the reaction takes another route resulting in 4-amino-2-aryl-6-methoxypyridine-3
在无水甲醇中,在甲醇钠的催化下,丙二腈二聚体的芳基亚甲基衍生物与1,3-环己二酮反应,得到4-氨基-5-芳基-2-甲氧基-6-氧代5,6,7,8,9 ,10-六氢苯并[ b ] [1,8]萘啶-3-甲腈。在苯环中存在强电子给体取代基的情况下,该反应采用另一种途径,从而产生4-氨基-2-芳基-6-甲氧基吡啶-3,5-二腈。