The Richter reaction of ortho-(alka-1,3-diynyl)aryldiazonium salts

Olga V. Vinogradova, Victor N. Sorokoumov, Sergey F. Vasilevsky, Irina A. Balova

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


The cyclisation of various ortho-buta-1,3-diynylaryldiazonium salts was studied and shown to depend on the reaction conditions and nature of the substituents on the benzene ring. The reaction leads to 4-chloro-3-ethynylcinnolines, and/or 3-ethynyl-4-hydroxycinnolines, the latter undergoing subsequent cyclisation to give furo[3,2-c]cinnolines.

Original languageEnglish
Pages (from-to)4907-4909
Number of pages3
JournalTetrahedron Letters
Issue number28
Publication statusPublished - 9 Jul 2007
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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