Synthesis of 2,3-dihydronaphtho[2,3-d][1,3]thiazole-4,9-diones and 2,3-dihydroanthra[2,3-d][1,3]thiazole-4,11-diones and novel ring contraction and fusion reaction of 3H-spiro[1,3-thiazole-2,1'-cyclohexanes] into 2,3,4,5-tetrahydro-1H-carbazole-6,11-diones

Synthesis of 2,3-dihydronaphtho[2,3-d][1,3]thiazole-4,9-diones and 2,3-dihydroanthra[2,3-d][1,3]thiazole-4,11-diones and novel ring contraction and fusion reaction of 3H-spiro[1,3-thiazole-2,1'-cyclohexanes] into 2,3,4,5-tetrahydro-1H-carbazole-6,11-diones

Treatment of N-substituted 2-(methylamino)naphthoquinones 3 and -anthracene-1,4-diones 4 with S2Cl2 and DABCO in chlorobenzene gave the corresponding 2,3-dihydronaphtho[2,3-d][1,3]thiazole-4,9-diones 1 and 2,3-dihydroanthra[2,3-d][1,3]thiazole-4,11-diones 2 by triethylamine addition, in high to mode...

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Bibliographic Details
Main Authors: Lidia S. Konstantinova, Kirill A. Lysov, Ljudmila I. Souvorova, Oleg A. Rakitin
Format: Article
Language:English
Published: Beilstein-Institut 2013-03-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
anthracene-1,4-diones
1H-carbazole-6,11-diones
fused thiazoles
fusion reaction
heterocycles
naphthoquinones
ring contraction
sulfur–nitrogen
Online Access:https://doi.org/10.3762/bjoc.9.62

Internet

https://doi.org/10.3762/bjoc.9.62

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