ArticleChemical science2026
Cross-dehydrogenative coupling macrocyclization for the construction of donor-acceptor nanohoops.
Article in Chemical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Donor (D) and acceptor (A) (D-A) architectures in cycloparaphenylenes (CPPs), or nanohoops, offer property tunability beyond what can be controlled by ring size. However, the synthesis of D-A nanohoops using traditional cross-coupling requires monomer prefunctionalization, which reduces step and atom economy. We report a catalytic cross-dehydrogenative coupling (CDC) macrocyclization strategy to access the [8]nanohoop cyclo(2,5-thienylene)(perfluoro-1,4-phenylene) ([8]CTPFP) with D-A architecture. A strain-relieving L-shaped precursor bearing thiophene termini is used in a Pd-catalyzed C-H/C-H cross-coupling reaction with 1,2,4,5-tetrafluorobenzene to form the precursor macrocycle pre[8]CTPFP in an atom- and step-economic route, circumventing the use of organometallic reagents. Subsequently, a BBr
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