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A superacid-promoted “knitting” strategy has been developed for the generation of a novel family of hypercrosslinked nanoporous polycarbazoles for efficient CO2 capture. Using trifluoromethanesulfonic acid, a Brønsted superacid, we demonstrate the facile and rapid synthesis of highly porous polycarbazoles with BET surface areas as high as 1688 m2 g−1, and capable of adsorbing 3.5 mmol g−1 of CO2 at 298 K and 1 bar. This impressive result bestows the material with the highest CO2 uptake capacity for all nanoporous carbazolic polymers and ranks among the best by known porous organic polymers under this condition. This innovative approach affords a metal-free alternative to Friedel–Crafts alkylation, and may open up new possibilities for the rational design and synthesis of new hypercrosslinked nanoporous organic networks for carbon capture. [ABSTRACT FROM AUTHOR]

Transition-metal-catalyzed cyanation of aryl halides is a common route to benzonitriles, which are integral to many industrial procedures. However, traditional homogeneous catalysts for such processes are expensive and suffer poor recyclability, so a heterogeneous analogue is highly desired. A novel spatial modulation approach has been developed to fabricate a heterogeneous Pd-metalated nanoporous polymer, which catalyzes the cyanation of aryl halides without need for ligands. The catalyst displays high activity in the synthesis of benzonitriles, including high product yields, excellent stability and recycling, and broad functional-group tolerance. [ABSTRACT FROM AUTHOR]

The Cover picture shows a novel spatial‐modulation approach that was developed to fabricate a heterogeneous Pd‐metalated conjugated nanoporous polymer (CNP) for efficient and ligand‐free cyanation of aryl halides. This innovative methodology excludes the use of toxic and expensive cyanide sources, suggesting a green and sustainable way toward the synthesis of benzonitriles. This is the first report of functionalized CNPs exhibiting high activity in the synthesis of benzonitriles, including high product yield, excellent stability and recyclability, and broad scope functional group tolerance. More details can be found in the Communication by Ding et al. on page 2348 in Issue 11, 2017 (DOI: 10.1002/cssc.201700329). [ABSTRACT FROM AUTHOR]

Ti and Zr nanoscale metal-organic frameworks (MOFs) are prepared from a mixture of Ti(O-iPr)4, terephthalic acid, DMF, and EtOH (autoclave, 150 °C, 20 h) and from a mixture of terephthalic acid, benzoic acid, DMF, and ZrCl4 (autoclave, 120 °C, 20 h). [ABSTRACT FROM AUTHOR]

We have designed a strategy for postsynthesis installation of the β-diketiminate (NacNac) functionality in a metal-organic framework (MOF) of UiO-topology. Metalation of the NacNac-MOF (I) with earth-abundant metal salts afforded the desired MOF-supported NacNac-M complexes (M = Fe, Cu, and Co) with coordination environments established by detailed EXAFS studies. The NacNac-Fe-MOF catalyst, I·Fe(Me), efficiently catalyzed the challenging intramolecular sp³ C-H amination of a series of alkyl azides to afford a-substituted pyrrolidines. The NacNac-Cu-MOF catalyst, I·Cu(THF), was effective in promoting the intermolecular sp3 C-H amination of cyclohexene using unprotected anilines to provide access to secondary amines in excellent selectivity. Finally, the NacNac-Co-MOF catalyst, I·Co(H), was used to catalyze alkene hydrogenation with turnover numbers (TONs) as high as 700 000. All of the NacNac-M-MOF catalysts were more effective than their analogous homogeneous catalysts and could be recycled and reused without a noticeable decrease in yield. The NacNac-MOFs thus provide a novel platform for engineering recyclable earth-abundant-element-based single-site solid catalysts for many important organic transformations. [ABSTRACT FROM AUTHOR]