The transition-metal-catalyzed oxidative cross-coupling between two coupling partners with similar structure and electronic characteristics remains a challenge owing to difficulty in suppressing undesired homo-couplings. We herein report a Pd-catalyzed oxidative cross-coupling between two thiophenes under mild reaction conditions. This approach can also be extended to furans. Some notable advantages
Functionalized oligothiophene-based heterocyclic aromatic fluorescent compounds with various donor–acceptor spacers and adjustable electronic properties: a theoretical and experimental perspective
Syntheses, characterizations, optical, electrochemical, and thermal properties of a family of linear oligothiophene-based heterocyclic aromatic fluorescent compounds are described herein. They all have effective π-conjugated systems with D–π–D or A–π–A structures as well as different bromo, thiocyano, formyl, and triphenylamino tails. X-ray single-crystal structure of 2TPA2T methanol semisolvate reveals
We report on the feasibility for colorfine‐tuning of opticalmaterials using rationaldesign principles based on chemical reasoning. For this purpose, a modular framework for the construction of symmetrical cap‐linker‐cap compounds, using triarylamine caps and oligothiophene linkers, is applied. The chosen structural scaffolds are heavily used in recent industrial applications and provide five possibilities