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Abstract: Pentamethylcyclopentadienyl (Cp*)‐based Group 9 metal (Co, Rh, or Ir) catalysts have emerged as powerful tools for C−H functionalization reactions. Whilst a diverse range of organic transformations have been developed by using [Cp*MIII] catalysts, they have often exhibited orthogonal reactivities and varied selectivities that depended on the choice of the central metal atom. An understanding of the physicochemical properties of the metals, as well as of their reaction mechanisms, has led to significant expansion of the synthetic scope of C−H functionalization reactions. This Focus Review summarizes and discusses the comparative catalytic reactivities and selectivities of the [Cp*MIII] catalysts, with an emphasis on metal‐dependent pathway‐switching by considering the mechanistic rationale. [ABSTRACT FROM AUTHOR]

A new synthetic routeto phosphoramidates by intermolecular C–Hamidation is presented. Substrates with assorted directing groupswere activated by an iridium-based catalyst system and reacted witha number of phosphoryl azides, executing efficient phosphoramidatesynthesis via C–N bond formations. [ABSTRACT FROM AUTHOR]

Two kinds of low-band gap polymers, poly[{N-(1-octyldecyl)-2,7-carbazole)}-alt-{1,7- di(4-tert-butylphenyloxy)-3,4,9,10-perylenebis(dicarboximide)-N,N′-di(2,6-dimethyl- phenyl-4-yl)}] poly(Cvz-PDIMEP) and poly{[N,N′-di(10-nonadecyl)perylene-3,4,9, 10-tetracarboxylic acid diimide-1,7-diyl]-alt-(9-heptadecyl)-9H-carbazol-2-yl)} poly (Cvz-PDIC9), were synthesized by palladium-catalyzed Suzuki polymerization. Bulk heterojunction solar cells with an ITO/PEDOT/polymer:PC71BM/LiF/Al configuration were fabricated, which shows short-circuit current density, open-circuit voltage, fill factor, and power conversion efficiency of 0.85 mA/cm2, 0.32 V, 0.27, and 0.073% under AM 1.5 irradiation (100 mW/cm2), respectively. [ABSTRACT FROM PUBLISHER]