Reactions of 1-aryl- and 2,3-diaryl- 5-diazo-6,6-dimethyl-4-oxo-4,5,6,7-tetra- hydroindazoles with N-ethyl- and N-phenyl-substituted maleimides

被引：0

作者：

I. Strakova

M. Turks

E. Bizdena

S. Belyakov

A. Tokmakov

A. Strakovs

机构：

[1] Riga Technical University,

[2] Latvian Institute of Organic Synthesis,undefined

来源：

Chemistry of Heterocyclic Compounds | 2009年 / 45卷

关键词：

1,3- and 2,3-substituted 5-diazo-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydroindazoles; N-ethyl- and N-phenylmaleimides; [3+2] cycloaddition reactions;

D O I：

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中图分类号：

学科分类号：

摘要：

[3+2] Cyclocondensation reactions of a series of 1,3- and 2,3-disubstituted 5-diazo-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydroindazoles with N-ethyl- and N-phenyl-substituted maleimides have been used to obtain the corresponding 6,6-dimethyl-4,4',6'-trioxo-4,5,6,7-3',3'a,4',5',6',6'a-decahydrospiro-[indazole-5,3'-pyrrolo[3,4-c]pyrazoles]. On boiling these compounds in toluene nitrogen is split off and they are converted into 6',6'-dimethyl-2,4,4'-trioxo-4',5',6',7'-tetrahydro-1'H-spiro[3-azabicyclo-(3.1.0)hexane-6,5'-indazoles].

引用

页码：545 / 553

页数：8

共 24 条

[1] Reactions of 1-aryl- and 2,3-diaryl-5-diazo-6,6-dimethyl-4-oxo-4,5,6,7-tetra- hydroindazoles with N-ethyl- and N-phenyl-substituted maleimides
Strakova, I.
Turks, M.
Bizdena, E.
Belyakov, S.
Tokmakov, A.
Strakovs, A.
CHEMISTRY OF HETEROCYCLIC COMPOUNDS, 2009, 45 (05) : 545 - 553
[2] 5-Diazo-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydroindazoles in the reactions of [3+2] cycloaddition
Strakova, I.
Strakovs, A.
Petrova, M.
Belyakov, S.
KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII, 2007, (12): : 1784 - 1791
[3] 5-Diazo-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydroindazoles in [3+2] cycloaddition reactions
Strakova I.
Strakovs A.
Petrova M.
Belyakov S.
Chemistry of Heterocyclic Compounds, 2007, 43 (12) : 1512 - 1518
[4] 3-aryl- and 2,3-diaryl-4-oxo-4,5,6,7-tetrahydroindazoles. 1. Reactions of phenyl- and tosylhydrazones of dimedone and 1,3-cyclohexanedione with substituted benzaldehydes
Strakova, I
Strakovs, A
Petrova, M
KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII, 2005, (11): : 1662 - 1668
[5] Synthesis and reactions of 1-(4-chloro-, 3-chloro-, 2-chloro-, 2,4-dichloro- and 2,4-difluorophenyl)-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydrolidazoles
Strakova, IA
Strakov, AY
Petrova, MV
Delyatitskaya, LG
KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII, 2000, (04): : 533 - 539
[6] 3-Aryl- and 2,3-diaryl-4-oxo-4,5,6,7-tetrahydro-indazoles. 1. Reactions of phenyl- and tosyl-hydrazones of dimedone and cyclohexane-1,3-dione with substituted benzaldehydes
Strakova I.
Strakovs A.
Petrova M.
Chemistry of Heterocyclic Compounds, 2005, 41 (11) : 1398 - 1404
[7] Synthesis and reactions of 1-(4-chloro-, 3-chloro-, 2-chloro-, 2,4-dichloro-, and 2,4-difluorophenyl)-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydroindazoles
Strakova I.A.
Strakov A.Ya.
Petrova M.V.
Delyatitskaya L.G.
Chemistry of Heterocyclic Compounds, 2000, 36 (04) : 459 - 464
[8] 3-aryl- and 2,3-diaryl-4-oxo-4,5,6,7-tetrahydroindazoles. 2. Reactions of aryl- and tosylhydrazones of dimedone and 1,3-cyclohexanedione with some aromatic and heteroaromatic aldehydes
Strakova, I
Strakovs, A
Petrova, M
KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII, 2005, (11): : 1669 - 1675
[9] 3-Aryl- and 2,3-diaryl-4-oxo-4,5,6,7-tetrahydroindazoles. 2. Reactions of aryl- and tosylhydrazones of dimedone and 1,3-cyclohexanedione with some aromatic and heteroaromatic aldehydes
Strakova I.
Strakovs A.
Petrova M.
Chemistry of Heterocyclic Compounds, 2005, 41 (11) : 1405 - 1410
[10] Crystal and molecular structure of the 1:1 solvate of 6,6-dimethyl-4-oxo-2-N-(3-methyl-5-oxo-4H-pyrazolyl)-5,6-dihydro-8H-pyrano[4′,3′:4,5]thieno[2,3-d]pyrimidine with dimethylsulfoxide
Aleksanyan, MS
Karapetyan, AA
Oganisyan, AS
Struchkov, YT
JOURNAL OF STRUCTURAL CHEMISTRY, 1997, 38 (06) : 989 - 992

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