Abstract
Based on the reaction of 8-R-4,5-dihydro-4,4-dimethyl[1,2]dithiolo[3,4-c]quinoline-1-thiones with oxalyl chloride followed by the reactions of 1,3-dipolar cycloaddition and diene synthesis with participation of acetylenedicarboxylic acid dimethyl ester, we have developed approaches to synthesis of novel polycondensed heterocyclic systems: [1,2]dithiolo[3,4-c]pyrrolo[3,2,1-ij]quinoline-4,5-dione, 6-(1,3-dithiol-2-ylidene)-1,2-dioxo-5-thioxo-7H-pyrrolo[3,2,1-ij]quinoline and 4,5-dioxospiro(pyrrolo)-[3,2,1-ij]thiopyrano[2,3-c]quinoline-11,2′-[1,3]dithiole.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 610–615, April, 2006.
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Medvedeva, S.M., Leshcheva, E.V., Shikhaliev, K.S. et al. Novel heterocyclic systems based on 8-R-4,5-dihydro-4,4-dimethyl-[1,2]dithiolo[3,4-c]quinoline-1-thiones. Chem Heterocycl Compd 42, 534–539 (2006). https://doi.org/10.1007/s10593-006-0122-2
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DOI: https://doi.org/10.1007/s10593-006-0122-2
Keywords
- acetylenedicarboxylic acid dimethyl ester
- 4,5-dioxospiro(pyrrolo)[3,2,1-ij]thiopyrano-[2,3-c]quinoline-11,2′-[1,3]dithiole, 6-(1,3-dithiol-2-ylidene)-1,2-dioxo-5-thioxo-7H-pyrrolo[3,2,1-ij]-quinoline, [1,2]dithiolo[3,4-c]pyrrolo[3,2,1-ij]quinoline-4,5-dione, [1,2]dithiolo[3,4-c]quinoline-1-thione, oxalyl chloride