In this paper, the ring-opening reaction of 2,5-dioctyldithieno[2,3-b:3',2'-d]thiophene with aryllithium in THF at low temperature to generate 2'-arylthio-3,3'-bithiophene-2-carbaldehydes is studied. Nine examples are explored and all the products are characterized by (1)H NMR, (13)C NMR and HRMS. The relative relationship between the structures of aryl groups and the efficiency of ring-opening reactions are discussed.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3678665 | PMC |
| http://dx.doi.org/10.3762/bjoc.9.87 | DOI Listing |
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