The cover picture shows four new chlorinated carbazole alkaloids, chlocarbazomycins (CCBs) A—D isolated from sponge associated bacterium Streptomyces diacarni LHW51701. Their structures were elucidated via spectroscopic techniques (including HRESIMS, 1D & 2D NMR), and X-ray crystallographic analysis. More details are discussed in the article by Lin on page 1188—1192.

This review summarize the catalytic asymmetric carbon-carbon cleavage reactions. It has collected the transition-metal catalyzed enantioselective reactions where carbon-metal bond was formed during the carbon-carbon activation processes. In these reactions, the enantioselective step is either at the carbon-carbon cleavage step or the downstream reactions after the carbon-carbon bond being cleaved. More details are discussed in the article by Gu et al. on page 1397—1412.

This account describes our results in the clean and economic synthesis of N-substituted amines with amine, ammonia, nitrobenzene or nitrile as nitrogen sources and alcohol, alkane or CO₂, HCHO, CO, and biomass resources as alkylation or formylation reagents.

Transition-metal-catalyzed benzylic C—H and C—N bond activation provides efficient strategies for the generation of reactive benzyl-containing species from simple alkylarene and benzylamine substrates, which pave the way for a wide range of novel catalytic benzylation reactions.

Two fully conjugated ladder polymers with suitable band structures are developed for visible-light-driven water oxidation. Our study highlights the potential of utilizing conjugated ladder polyemers for various photocatalytic applications considering that their chemical and electronic properties can be rationally designed from the molecular level.

Phytochemical investigations on Tabernaemontana divaricata led to the isolation of seven undescribed monoterpenoid indole alkaloids, taberdicatines A—G (1—7). Taberdicatines A—C might be derived from Aspidosperma-type alkaloid with less carbons in 1—2 and an additional carbon in 3. Taberdicatines D—E (4—5) were attributed to Iboga alkaloids with enantiomeric skeleton. Alkaloid 3 could promote the neurite growth of mouse primary cortical neurons at the concentration of 5 μmol/L.

A novel class of potential antimicrobial quiazolonethiazoles were developed by multistep synthetic process and their biological evaluation suggested that quiazolonethiazoles could provide the meritorious groundwork of future studies as new antimicrobial agents in fighting pathogenic organism.

Three new tenellone-macrolide conjugated dimers lithocarpins E—G (1—3), featuring a fascinating 9,14- epoxynaphtho[2,3-e]oxecin-3(2H)-one skeleton, were isolated. Moreover, lithocarpin E showed an inhibitory effect against HepG2 cells with an IC₅₀ value of 6.3 μmol/L, which induced the apoptosis of HepG2 cells by the up-regulation of apoptotic markers p-ERK, Bax, and caspase-3.

Possible fluorescent mechanisms for the PTI reduced from CORM3-green, it shows the mechanism raised by the original literature (front part) and our finding from theoretical calculation (back part), which illustrates an indispensable role of DMSO.

Phase-engineering on heterogeneous α/β-CoMoO₄ nanorods was successfully introduced to improve the cycle life and rate performance as anode materials for Li-ion batteries.

Eleven polycyclic phloroglucinol meroterpenoids (1—11), including nine new ones guajamers A—I (1—9), were isolated from the leaves of Psidium guajava. Compound 9 was the first case of 3-alkyl-5-formyl-benzoylphloroglucinol-coupled sesquiterpene containing an unusual C-1-spiro-fused 6/6/9/4 polycyclic skeleton. Most of them (2—7, 10, and 11) showed antibacterial activity against Staphylococcus aureus and Staphylococcus epidermidis with MIC values of 8—32 μmol/L.

CoSe₂/MoS₂ heterostructures couple the strong polysulfide adsorption of CoSe₂ and high catalytic activity of MoS₂ to synergistically accelerate polysulfide conversion, demonstrating higher catalytic activity than their individual components.

An efficient rhodium(II)-catalyzed [4+3] cyclization reaction of 1-sulfonyl-1,2-3-triazoles and indoles was developed. In addition, the total synthesis of (±)-aurantioclavine was completed in four steps adopting this [4+3] cyclization as a key step.

This paper reports a superhydrophobic and self-healable supercapacitor, which could work in the underwater environment.

Zwitterionic self-assembly of N-heterocyclic allenylidene Pt(II) complexes with metallophilic Pt···Pt interactions shifts phosphorescence from yellow to red and then to near-infrared region.

A Cu-catalyzed cascade cyclization reaction of ketoxime acetates and alkynals has been developed that enables synthesis of two kinds of structurally important 2-acylpyrroles.

Binuclear vanadium complexes were designed and exhibited high activity in ring-opening metathesis polymerization of norbornene. Cyclic polymers were obtained and demonstrated.

Four new energetic complexes (1) [Cu(vimi)₄]DCA₂, (2) [Co(vimi)₄]DCA₂, (3) [Ni(vimi)₄]DCA₂, and (4) [Cu(vimi)₄]CBH₂ (vimi: 1-vinylimidazole, DCA: dicyanamide anion, CBH: cyanoborohydride anion) were prepared, and their structures were characterized via single-crystal X-ray diffraction, elemental analysis, and Fourier-transform infrared spectroscopy.

A layer of dense anodized nickel passivation film (Ni-APF) was formed on the surface of nickel sheet by anodic oxidation method, with carbon dots (CDs) as co-catalyst. Ni-APF/CDs showed 144.4 mA∙cm⁻² peak current density at peak potential 0.662 V (vs. Ag/AgCl), which was 31% higher than that of Ni-APF (110.3 mA∙cm⁻²). In this system, CDs mainly function in the increase of charge-transfer capacity and the promotion oxidation of carbonaceous intermediates.

[Cp*Co(CO)I₂]-catalyzed pyridyl- and pyrimidyl-directed C—H allylation of arenes with allylic amines was performed, affording ortho-allylated arenes in moderate to high yields.

A variety of 3-methylthioindole and deuterated 3-methylthioindole derivatives were conveniently synthesized from the reaction of 2-alkynylanilines with DMSO/DMSO-d₆ and SOCl₂ via intramolecular cyclization/methylthiolation. Advantages of this method include the metal-free feature, readily availability of the substrates, mild reaction conditions, and synthesis of the deuterated 3-methylthioindoles.

Potassium salts of perfluoroalkyl ether carboxylic acids featuring CF₂O units were used as deoxyfluorination reagents for synthesis of acyl fluorides, sulfonyl fluorides and phosphoric fluorides.

We have developed an inexpensive and scalable route to fabricate graphene-like carbon nanosheet wrapped SiO_x/C submi-crospheres. The in-situ generated carbon nanosheets under molten salt condition can further improve the electroconductivity, re-strain the volumetric expansion and guarantee the structural integrity of the electrode.

We design an optogenetic system that uses light sensitive protein-protein interaction between Arabidopsis cryptochrome 2 (CRY2) and CIB1 to spatiotemporally visualize the PIP3 production with high specificity.

This manuscript reports the full detail of the asymmetric total synthesis of cyclocitrinol, an unusual C25 steroid with a unique bicyclo[4.4.1]undecene A/B ring system. Our initial synthetic studies to construct the desired bicyclo[4.4.1]undecene ring via type II [5+2] cycloaddition revealed that a chiral substituent at the allylic position of the alkene (C6) would control the stereoselective outcome of the cycloaddition reaction. Elaboration of the cycloadduct, involving dehydroation of the tertiary alcohol, lithium-amine promoted oxa-bridge cleavage, double oxidative deformylation and selective side chain introduction finished the synthesis of cyclocitrinol.

This work reveals a novel series of titanium-oxo clusters, PTC-267, PTC-268, PTC-269 and PTC-270, formed from in situ esterified ligands. These complexes offer rare examples of dicarboxylate-modified polyoxo-titanium clusters (PTCs) with ester groups and provide evidence for the production of water by an in situ esterification reaction.

The introduction of non-peripheral octamethyl substituents on CoPc can enhance charge transfer rate and improve redox activity, resulting in better pseudocapacity. The capacitance value of phthalocyanine nanorods is further improved compared with powders due to larger specific surface area.

An efficient method toward the constructions of well-defined graft copolymer, bridging sequence with architecture by successive latent monomer and grafting from strategies, was demonstrated.

The OH group in the second coordination sphere improves the formation of a local hydrogen bond that promotes the protonation of CO₂ reduction intermediates, boosting the electrocatalytic CO₂ reduction properties of complex Re1.

We reported an orange/near-infrared-emissive fluorescent probe (TTPB) for dual-imaging of mitochondrial viscosity and H₂O₂ in inflammation and cancer models.

Benzoic hydrazide or amide derivatives containing a 1,2,3-triazole group were synthesized and their in vitro and In vivo antifungal and antibacterial activities were screened. Antifungal bioassay showed that compound 5l was effective for the control of rice sheath blight and wheat scab with the effects of 75% and 95%, respectively. Further studies suggested that target compounds were potential succinate dehydrogenase inhibitors (SDHIs). Interestingly, compounds 5r and 5s displayed superior control effects against rice bacterial blight (up to 51%) than commercial agents Bismerthiazol and Thiodiazole copper.

The investigation of U. rhynchophylla led to the isolation of four new compounds uncarialins J—M (1—4) and seven known analogues (5—11). Compounds 1, 2, 7, and 9—11 displayed significant agonistic effects towards 5-HT_1A receptor with EC₅₀ values of 1.18—7.86 μmol/L. Hirsuteine (7) displayed a significant antidepression effect in UCMS-induced depression mice via regulating 5-HT_1A receptor interacted with Asp116 and Asn386.

Unquenched Lewis acids and bases, designated “frustrated Lewis pairs”, provide new possibilities for a variety of catalytic transformations and open an enormous space for fine tuning the electronic and steric properties of catalysts.

In this review, the characteristics of the existing mainstream methods for growing bulk halide perovskite single crystals and their applications as photodetectors and gas sensors were discussed, which is insightful for future synthesis and applications of perovskite single crystals.

We update the latest researches on preparation, optoelectronic and chemical properties of CDs as well as their biomedical and optoelectronic applications. We hope that this review will give further impulses to target-oriented research on CDs for biomedical and optoelectronic applications.

In this minireview, the general synthetic methods and fundamental insights into the growing mechanism of Pt-based ultrathin nanowires as well as the recent advances for electrocatalytic applications are summarized.

Recent advances of transition-metal-catalyzed carbon-carbon activation reactions and their synthetic applications were reviewed. In these reactions, the enantio-determining step is either at the carbon-carbon bond cleavage stage or its downstream reactions.

The cover picture shows binuclear vanadium complexes for ROMP, which revealed unexpected backbiting reaction between two in-situ formed alkylidenes. The following REMP gives the formation of polymer with cyclic topology. More details are discussed in the article by Wu et al. on page 1181—1187.

This work describes the constructions of graft copolymers with controlled density and distribution of side chains by successive latent monomer and grafting-from strategies. More details are discussed in the article by Zhang et al. on page 1273—1280.