2a,4a-Diazacyclopenta[<i>c</i>,<i>d</i>]azulenes

Authors

  • B. А. Ковтуненко Taras Shevchenko Kiev University, Kiev 252601
  • К. Г. Назаренко Taras Shevchenko Kiev University, Kiev 252601
  • А. М. Демченко N. D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, 117913 Moscow

Abstract

A method of preparing 5-aryl-1,2-pentaniethyleneimidazoles from O-methylcaprolactim and α-aminoacetophenone hydrochlorides is described. It is shown that 1,2-tri-, -tetra-, and -pentamethyleneirrüdazoles and phenacyl bromide give the corresponding quaternary imidazolium salts, cyclization of which in the presence of base gives the previously unknown 5,6,7,8-tetrahydro-2a,4a-diazacyclopenta(c,d]azulenes (IVa-i).

How to Cite
Kovtunenko, V. A.; Nazarenko, K. G.; Demchenko, A. M. Chem. Heterocycl. Compd. 1996, 32, 923. [Khim. Geterotsikl. Soedin. 1996, 1072.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF01176968

Downloads

Published

1996-08-25

Issue

No. 8 (1996)

Section

Original Papers