6,6-Dimethyl-4,8-dioxospiro[2.5]octane-1,1,2,2-tetracarbonitrile in the synthesis of heterocyclic compounds of the 2,3-dihydrofuran and 5,6,7,8-tetrahydro-4H-chromene series

Authors

  • O. В. Каюкова Chuvash State University, Cheboksary 428015
  • П. M. Лyкин Chuvash State University, Cheboksary 428015
  • Я. C. Кaюков Chuvash State University, Cheboksary 428015
  • O. E. Насакин Chuvash State University, Cheboksary 428015
  • В. H. Хрустaлев Chuvash State University, Cheboksary 428015
  • В. H. Нестеров Chuvash State University, Cheboksary 428015
  • M. Ю. Антипин Chuvash State University, Cheboksary 428015

Abstract

6,6-Dimethyl-4,8-dioxospiro[2.5]octane-1,1,2,2-tetracarbonitrile (III), synthesized by the interaction of tetracyanoethylene with 2-bromo-5,5-dimethyl-1,3-cyclohexanedione, reacts with alcohols and ketoximes to form 2-alkoxy-2-(3-alkoxycarbonyl-2,2-dimethylpropyl)-5-amino-3-dicyanomethylene-4-cyano-2,3-dihydrofurans and 2-alkylidenaminoxy-2-(3-alkylidenaminoxycarbonyl-2,2-dimethylpropyl)-5-amino-3-dicyanomethylene-4-cyano-2,3-dihydrofurans. Compound III with triarylphosphines forms 2-(triarylphosphoranilidenamino)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3,4,4-tricarbonitriles.

How to Cite
Kayukova, O. V.; Lukin, P. M.; Kayukov, Y. S.; Nasakin, O. E.; Khrustalev, V. N.; Nesterov, V. N.; Antipin, M. Yu. Chem. Heterocycl. Compd. 1998, 34, 148. [Khim. Geterotsikl. Soedin. 1998, 34, 170.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF02315175

Downloads

Published

1998-02-25

Issue

No. 2 (1998)

Section

Original Papers