Results 211 to 220 of about 41,140 (322)

Catalytic Enantioselective Intramolecular Aza‐Michael Addition to α,β‐Unsaturated Esters

Angewandte Chemie, Volume 138, Issue 30, 20 July 2026.
A general method for accessing enantioenriched saturated N‐heterocycles via a catalytic enantioselective intramolecular aza‐Michael reaction to α,β‐unsaturated esters is described. A superbasic bifunctional iminophosphorane (BIMP) catalyst was key to enabling reactivity of the high pKa sulfonamide pronucleophile, whilst delivering good to excellent ...
Evan G. W. Rutter, Cameron J. MacRae, Haoran Xiong, Daniel Rozsar, Katherine F. P. Clarke, Darren J. Dixon   +5 more
wiley   +2 more sources

In vivo dynamic tracking of cerebral chloride regulation using molecularly tailored liquid/liquid interfacial ultramicro iontronics. [PDF]

Sci Adv
Gu C, Kong F, Liang S, Zhao X, Kong B, Jiang T, Yu J, Li Q, Lin Y, Bai S, Shao Y.   +10 more
europepmc   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, Volume 32, Issue 28, 25 July 2026.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Mesoporous N,S‐Dual‐Doped Carbon Nanoreactors via Entropy‐Driven Interface Self‐Assembly for Efficient H2O2 Electrosynthesis

Angewandte Chemie, Volume 138, Issue 30, 20 July 2026.
An entropy‐driven interface self‐assembly strategy is proposed for the controllable synthesis of mesoporous N,S‐dual‐doped carbon nanoreactors. The N,S‐dual‐doping sites optimized the *OOH adsorption, boosting the 2e− selectivity, while the favorable mesostructure accelerated O2 enrichment.
Fei Liu, Xiaoqing Liu, Rui Zhang, Linxia Cui, Ji Liang, Rui Gao, Jian Liu   +6 more
wiley   +2 more sources

Research on self-healing photocurable 3D-printed conductive polycaprolactone-based composites. [PDF]

Sci Rep
Liu Z, Liu Y.
europepmc   +1 more source

On Oxalyl Halide Isothiocyanates Part II: Decarbonylation and Reactivity Studies

European Journal of Inorganic Chemistry, Volume 29, Issue 21, 25 July 2026.
Thermal decarbonylation of oxalyl halide isothiocyanates affords the respective carbonyl halide isothiocyanates as liquids. Crystals grown from melt allowed the elucidation of their crystal structures. Spectroscopic signatures (IR, Raman, NMR) are presented alongside reactivity studies. The reaction of oxalyl halide isothiocyanate, X(CO)2NCS (X = Cl (1)
Sven Ringelband, Frank Tambornino
wiley   +1 more source

Quantitative Photo‐Reforming of Biomass to CO Spurred by In Situ Protonation of Carbon Dioxide Radical Anions

Angewandte Chemie, Volume 138, Issue 30, 20 July 2026.
A “two‐in‐one” photoreduction strategy enabled by electron‐rich yolk Cd species both remote from and adjacent to sulfur vacancies is delivered to be ultraselective for the reduction of O2 and •CO2− in situ formed on the shell Bi2S3 composition (hole) by water oxidation and oxidative C–C cleavage of various biomass organic acids, furnishing CO with > 99%
Tengyu Liu, Jinshu Huang, Qizhi Luo, Song Yang, Anders Riisager, Hu Li   +5 more
wiley   +2 more sources

Screwing the helical chirality through terminal <i>peri</i>-functionalization. [PDF]

Beilstein J Org Chem
Chandra D, Sachin, Sharma U.
europepmc   +1 more source

Diaryl Thiourea Catalysts Promote the Formation of Propargyl Enol Ethers in the Claisen Rearrangement Sequence

European Journal of Organic Chemistry, Volume 29, Issue 28, 25 July 2026.
The allenyl ketone products of an enol ether formation–propargyl Claisen rearrangement sequence are susceptible to acid‐catalyzed isomerization to yield the corresponding conjugated dienones. A diaryl thiourea catalyst was found to promote the desired reaction sequence while suppressing the competing isomerization.
Veera K. Bruce‐Salmenkivi, Kaveh Farshadfar, Kari Laasonen, Petri M. Pihko   +3 more
wiley   +1 more source

Organocatalytic Enantio- and Diastereoselective Synthesis of Dispirooxindole Derivatives with Adjacent Spirocyclic Centers via [4 + 2] Cycloadditions. [PDF]

J Org Chem
Hidalgo-León R, Trujillo-Sierra J, Sansano JM, Retamosa MG.   +3 more
europepmc   +1 more source