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Sulfur-rich heterocycles from 2-metalated benzo[b]thiophene and benzo[b]furan: Synthesis and structure
Södertörn University, Avdelning Naturvetenskap. Karolinska Institutet.
Södertörn University, Avdelning Naturvetenskap. Karolinska Institutet.
2002 (English)In: Journal of Organic Chemistry, ISSN 0022-3263, E-ISSN 1520-6904, Vol. 67, no 17, 6220-6223 p.Article in journal (Refereed) Published
Abstract [en]

The reaction of 2-lithiated benzo[b]thiophene with 8 equiv of elemental sulfur was found to give pentathiepino[6,7-b]benzo[d]thiophene. In contrast, treatment of 2-lithiated benzo[b]furan with sulfur under similar conditions produced the interesting ring system bis(benzo[4,5]-furo)[2,3-e:3',2'-g][1,2,3,4]tetrathiocine. Both of these new cyclic polysulfides were studied by X-ray crystallography. Two polymorphic forms of pentathiepino[6,7-b]benzo[d]thiophene were found, displaying similar conformations but different packing schemes, which was also evident from powder diffraction data.

Place, publisher, year, edition, pages
2002. Vol. 67, no 17, 6220-6223 p.
National Category
Organic Chemistry
Identifiers
URN: urn:nbn:se:sh:diva-15789DOI: 10.1021/jo0257086ISI: 000177559800051PubMedID: 12182664ScopusID: 2-s2.0-0037162734OAI: oai:DiVA.org:sh-15789DiVA: diva2:508395
Available from: 2012-03-08 Created: 2012-03-07 Last updated: 2014-04-17Bibliographically approved

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