Photocatalytic Suzuki Coupling Reaction Using Conjugated Microporous Polymer with Immobilized Palladium Nanoparticles under Visible Light

Trends and challenges for microporous polymers

“…169,170 Another recent work showed the versatility of carbazole based CMPs in photocatalytic applications, as one single carbazole-based CMP was able to photocatalyze a range of reactions, including dehalogenation of phenacyl bromide, oxidative hydroxylation of arylboronic acids, alpha-alkylation of aldehydes, oxidative coupling of primary amines, aerobic dehydrogenation of nitrogen heterocycles, and selective oxidation of sulfide using molecular oxygen and visible light.…”

Conjugated Microporous Poly(Benzochalcogenadiazole)s for Photocatalytic Oxidative Coupling of Amines under Visible Light

“…[18] As an alternative to the traditional oxidebased semiconductor photocatalysts, CMPs have emerged as an ew class of robusta nd efficient heterogeneneous visiblelight photocatalysts owing to their semiconductor-range bandgaps and excellenta bsorption of visible light. [19] Previous studies by variousg roups demonstrate that CMPs can serve as effective visible-light photocatalysts forn ot only photoredox reactions, such as molecular oxygen activation, [20] selectiveo xidation of organic sulfides, [21] CÀCb ond formation, [22] reductive dehalogenation, [23] and oxidative hydroxylation of arylboronic acids, [24] buta lso free-radical and cationic polymerization and [25] hydrogen evolution. [26] It was reported that the redox potentials of homogeneous transition-metal-based organometallicc omplexes can be adjusted by modifyingt he metal center and/ors urrounding ligands to meet the activation energy of specific organic reactions.…”

Porous conjugated polymer via metal-free synthesis for visible light-promoted oxidative hydroxylation of arylboronic acids

“…[7][8][9][10][11][12][13] Since Cooper's seminal report in 2007, [14] a variety of porous conjugated polymer (PCPs) have been developed for applications such as gas sorption, [15,16] molecular separation, [17] green energy devices, [18] hydrogen production, [8] CO 2 conversion [19] and most recently visible lightpromoted heterogeneous photocatalysis. [10,11,[20][21][22][23][24][25] Compared to other porous counterparts such as hypercross-linked polymers (HCPs) or polymers of intrinsic microporosity (PIMs), the most characteristic feature of PCPs is the π-conjugated skeleton which leads to their outstanding light-harvesting/emitting properties, charge transfer/separation, electric energy storage properties as well as photocatalytic activities. [26] From a synthetic perspective, an array of protocols has been reported for the preparation of porous conjugated polymers.…”