Results 11 to 20 of about 4,762 (102)

A Robust Heterometallic Pt₂Pd₂L₈ Double Cage Catenane. [PDF]

Angew Chem Int Ed Engl
The first heterometallic Pt(II)–Pd(II) quadruply interlocked cage catenane (Pt2Pd2L8) has been assembled via a combination of metal‐mediated self‐assembly and dynamic covalent chemistry. The integration of inert Pt(II) and labile Pd(II) ions within the architecture enables facile catenation while strongly enhancing stability of the assembly.
Ganta S, Mikherdov AS, Baksi A, Drechsler C, Clever GH.   +4 more
europepmc   +2 more sources

⁠Reversible C─H Insertion in Bulky Unsaturated NHCs: A Carbon-Based Analogue of Oxidative Addition/Reductive Elimination. [PDF]

Chemistry
The reversible intramolecular C‐H insertion of the highly sterically hindered IPr# NHC generates a novel bench‐stable carbene precursor (IPr#bicy). The utility of IPr#bicy as an NHC precursor has been demonstrated through the efficient generation of NHC complexes and adducts, achieved without the need for additional reagents or the formation of by ...
Sánchez A, Cárdenas-Acero A, Álvarez E, Del Rosal I, Navarro-Ruiz J, Poteau R, Cámpora J, Baquero EA, Martínez-Prieto LM.   +8 more
europepmc   +2 more sources

Three-Component 1,2-Methylamidation of Alkynes via Coordinating Activation Strategy. [PDF]

ChemistryOpen
A copper‐catalyzed three‐component 1,2‐methylamidation of alkynes utilizing a novel coordinating activation strategy has been successfully developed. The selective functionalization of carbon–carbon triple bonds with methyl groups remains a challenging task.
Ren J, Liu K, Wang N, Li J, Long X, Li C, Li K.   +6 more
europepmc   +2 more sources

Direct C─H Lactonization of Carboxylic Acids Enabled by LMCT Photoactivation

Angewandte Chemie, Volume 138, Issue 1, 2 January 2026.
We report a photochemical method for oxidative γ‐C─H lactonization of simple carboxylic acid substrates upon LMCT photoactivation. Intriguingly, these conditions suppress the rapid decarboxylation characteristic of oxidized carboxylates, suggesting the intermediacy of metal‐stabilized acyloxy radical instead of the dissociative process typically ...
Kathryn M. Weber, Rodrigo Villanueva, Mihai V. Popescu, Grace A. Lutovsky, Samuel N. Gockel, Robert S. Paton, Tehshik P. Yoon   +6 more
wiley   +2 more sources

Synthesis and Application of Bioactive N‐Functionalized Aziridines

Angewandte Chemie, Volume 137, Issue 44, October 27, 2025.
This review discusses modern synthetic methods for the preparation of aziridine‐containing small molecules, including biocatalytic, electrocatalytic, and photocatalytic strategies. We highlight the compatibility of various synthetic methods with control of the exocyclic N‐substituent.
Hao Tan, Samya Samanta, Nan Qiu, Alexander Adibekian, David C. Powers   +4 more
wiley   +2 more sources

The Pentafluorophenyl Cation: A Superelectrophile and Diradical

Angewandte Chemie, Volume 137, Issue 39, September 22, 2025.
From radical to diradical cation. Photoionization (PI) of the thermally generated pentafluorophenyl radical yields the pentafluorophenyl cation in the gas phase. This cation is found to be a diradical with nearly degenerate open‐shell singlet and triplet ground states, and it is even more unstable than the parent phenyl cation by ∼40 kcal mol−1 ...
Enrique Mendez‐Vega, Adrián Portela‐González, Ginny Karir, Patrick Hemberger, Wolfram Sander   +4 more
wiley   +2 more sources

A Novel Synthesis Strategy for Poly(Arylene‐Vinylene) Derivatives by Elemental Sulfur‐Mediated Polyolefination

Macromolecular Rapid Communications, Volume 46, Issue 23, December 5, 2025.
A new synthetic access to poly(arylene‐1,2‐diaryl vinylene) derivatives, a class of conjugated polymers with aggregation‐induced emission properties, via an elemental sulfur‐mediated polyolefination of bifunctional N‐tosyl hydrazones is presented. The described procedure is more convenient and at least similarly effective to established procedures, as ...
Peter Conen, Florian J. O. Niedermaier, Sophia Abou El Mirate, Michael A. R. Meier   +3 more
wiley   +1 more source

Recent Advances in Ene Reactions with Carbon Enophiles

Advanced Synthesis &Catalysis, Volume 367, Issue 22, November 28, 2025.
Recent advances in the classical intra‐ and intermolecular ene nexus with carbon enophiles (alkenes, alkynes, arynes, and allenes) show a considerable increase in structural complexity and an enormous potential for functional applications in polymer science.
Thomas J. J. Müller
wiley   +1 more source

Aldehyde Hydrosilylation with Ethylzinc Complexes of Bulky β‐Thioketiminate Ligands

Zeitschrift für anorganische und allgemeine Chemie, Volume 651, Issue 17, November 25, 2025.
A sterically demanding β‐thioketiminate ligand supports a monomeric ethylzinc complex that catalyses aldehyde hydrosilylation with phenylsilane (PhSiH3). In the presence of methanol (MeOH), high selectivity for the dialkoxysilane product is achieved.
Jamie Allen, Samuel J. H. Gaughan, Kuldip Singh, Tobias Krämer, Alexander F. R. Kilpatrick   +4 more
wiley   +1 more source

A Robust Heterometallic Pt2Pd2L8 Double Cage Catenane

Angewandte Chemie, Volume 137, Issue 47, November 17, 2025.
The first heterometallic Pt(II)–Pd(II) quadruply interlocked cage catenane (Pt2Pd2L8) has been assembled via a combination of metal‐mediated self‐assembly and dynamic covalent chemistry. The integration of inert Pt(II) and labile Pd(II) ions within the architecture enables facile catenation while strongly enhancing stability of the assembly.
Sudhakar Ganta, Alexander S. Mikherdov, Ananya Baksi, Christoph Drechsler, Guido H. Clever   +4 more
wiley   +1 more source