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Paper | Regular issue | Vol 26, No. 2, 1987, pp.385-388
Published online, 1st January, 1970
DOI: 10.3987/R-1987-02-0385
Cyclization of Thiophenedicarboxaldehyde with Nitromethane

Mohamed El Borai and Mahmoud Fahmy

*Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt


The reaction of thiopheno [3,4-c]and[2,3-b]dicarbaxaldehyde with nitramethane in alcoholic potassium hydroxide afforded the corresponding 5-nitro-4Hcyclopenta [c]thiophen-4-ol II and 5-nitro-4H-cyclopenta[b]thiophen-4-ol III, respectively.