ANOMALOUS BECKMANN REACTION IN A SERIES OF OXIMES OF 4-ARYL-2,7,7-TRIMETHYL-5-OXO-5,6,7,8-TETRAHYDROQUINOLINES IN POLYPHOSPHORIC ACID. 2. UNEXPECTED SYNTHESIS OF 3'-ETHOXYCARBONYL-4',7',7'-TRIMETHYL-4-OXO-2',6',7',8'-TETRAHYDROSPIRO(CYCLOHEXA- 2,

Authors

  • С. В. Толкунов L. M. Litvinenko Institute of Physical Organic and Coal Chemistry, National Academy of Sciences of the Ukraine, Donetsk 83114
  • А. И. Хижан L. M. Litvinenko Institute of Physical Organic and Coal Chemistry, National Academy of Sciences of the Ukraine, Donetsk 83114
  • С. В. Шишкина Institute of Monocrystals, National Academy of Sciences of Ukraine, Kharkov 61001
  • О. В. Шишкин Institute of Monocrystals, National Academy of Sciences of Ukraine, Kharkov 61001
  • В. И. Дуленко L. M. Litvinenko Institute of Physical Organic and Coal Chemistry, National Academy of Sciences of the Ukraine, Donetsk 83114

Keywords:

oximes of 4-aryl-3-ethoxycarbonyl-2,7,7-trimethyl-5-oxo-5,6,7,8-tetrahydroquinolines, 3'-ethoxycarbonyl-4',7',7'-trimethyl-4-oxo-2',6',7',8'-tetrahydrospiro(cyclohexa-2,5-diene-1,2'-pyrrolo[4,3,2-d,e]quinolines), polyphosphoric acid

Abstract

Oximes of 3-ethoxycarbonyl-4-halo(methoxy)phenyl-2,7,7-trimethyl-5-oxo-5,6,7,8-tetrahydroquinolines are converted in polyphosphoric acid (PPA) into 3'-ethoxycarbonyl-4',7',7'-trimethyl-4-oxo-2',6',7',8'-tetrahydrospiro(cyclohexa-2,5-diene-1,2'-pyrrolo[4,3,2-d,e]quinoline). An X-ray structural analysis has been carried out on one of the synthesized compounds.

How to Cite
Tolkunov, S. V.; Khyzhan, A. I.; Shishkina, S. V.; Shishkin, O. V.; Dulenko, V. I. Chem. Heterocycl. Compd. 2004, 40, 58. [Khim. Geterotsikl. Soedin. 2004, 64.]

For this article in the English edition, see DOI 10.1023/B:COHC.0000023768.66484.d5

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Published

2004-01-25

Issue

No. 1 (2004)

Section

Original Papers