Pyrrolo[2,3-d:5,4-d']bisthiazoles: Alternate Synthetic Routes and a Comparative Study to Analogous Fused-Ring Bithiophenes.
JOURNAL OF ORGANIC CHEMISTRY(2018)
摘要
New synthetic methods have been developed for the preparation of 4-alkyl-and 4-aryl-pyrrolo[2,3-d:5,4-dlbisthiazole (PBTz) building blocks from 2,4-thiazolidinedione. The resulting PBTz products have been fully characterized via structural, electronic, and optical methods, thus allowing full comparison to the previously reported dithieno[3,2-b:2',3'-d]pyrrole (DTP) analogues. Such comparisons then allow a detailed discussion of the relative electronic effects of the various methods utilized to tune the properties of the parent DTP building block.
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