Carbene radicals in transition-metal-catalyzed reactions

RFJ Epping, D Vesseur, M Zhou, B de Bruin - ACS catalysis, 2023 - ACS Publications
Discovered as organometallic curiosities in the 1970s, carbene radicals have become a
staple in modern-day homogeneous catalysis. Carbene radicals exhibit nucleophilic radical …

Solvent Drives Switching between Λ and Δ Metal Center Stereochemistry of M8L6 Cubic Cages

W Xue, TK Ronson, Z Lu… - Journal of the American …, 2022 - ACS Publications
An enantiopure ligand with four bidentate metal-binding sites and four (S)-carbon
stereocenters self-assembles with octahedral ZnII or CoII to produce O-symmetric M8L6 …

[HTML][HTML] Recent Synthetic Advances on the Use of Diazo Compounds Catalyzed by Metalloporphyrins

MMQ Simões, JAS Cavaleiro, VF Ferreira - Molecules, 2023 - mdpi.com
Diazo compounds are organic substances that are often used as precursors in organic
synthesis like cyclization reactions, olefinations, cyclopropanations, cyclopropenations …

Tetramine Aspect Ratio and Flexibility Determine Framework Symmetry for Zn8L6 Self‐Assembled Structures

JA Davies, A Tarzia, TK Ronson, F Auras… - Angewandte Chemie …, 2023 - Wiley Online Library
We derive design principles for the assembly of rectangular tetramines into Zn8L6 pseudo‐
cubic coordination cages. Because of the rectangular, as opposed to square, geometry of …

Supramolecular Capsule-Catalyzed Highly β-Selective Furanosylation Independent of the SN1/SN2 Reaction Pathway

TR Li, GM Piccini, K Tiefenbacher - Journal of the American …, 2023 - ACS Publications
The resorcin [4] arene capsule was found to catalyze β-selective furanosylation reactions for
a variety of different furanosyl donors: α-d-and α-l-arabinosyl-, α-l-fucosyl-, α-d-ribosyl-, α-d …

Crownphyrins: Metal‐Mediated Transformations of the Porphyrin‐Crown Ether Hybrids

M Matviyishyn, A Białońska, B Szyszko - Angewandte Chemie, 2022 - Wiley Online Library
Crownphyrins are hybrid macrocycles combining structural features of porphyrin and crown
ethers. The molecular architecture renders them an intriguing class of hosts capable of …

Mingling Light, Oxygen, and Organometallics to Form Cobalt–Carbon Bonds in the Confines of a Metal–Organic Nanocage

DA Rothschild, A Tran, MC Lipke - Organometallics, 2023 - ACS Publications
First-row transition-metal complexes often show a propensity for forming reactive radical
species, such as superoxide complexes (M–O2·) generated by the binding of O2 to the metal …

Enantioselective Tail‐to‐Head Terpene Cyclizations by Optically Active Hexameric Resorcin [4] arene Capsule Derivatives

D Sokolova, GM Piccini… - Angewandte Chemie …, 2022 - Wiley Online Library
Molecular capsules enable the conversion of substrates inside a closed cavity, mimicking to
some extent enzymatic catalysis. Chirality transfer from the molecular capsule onto the …

[HTML][HTML] Stereoconvergent, photocatalytic cyclopropanation reactions of β-substituted styrenes with ethyl diazoacetate

T Langletz, C Empel, S Jana, RM Koenigs - Tetrahedron Chem, 2022 - Elsevier
Cyclopropanes constitute a pivotal molecular scaffold in medicinal and agrochemical
research and find broad applications in marketed drugs and other bioactive compounds …

Exploring the Gas‐Phase Formation and Chemical Reactivity of Highly Reduced M8L6 Coordination Cages

MC Pfrunder, DL Marshall, BLJ Poad… - Angewandte …, 2022 - Wiley Online Library
Coordination cages with well‐defined cavities show great promise in the field of catalysis on
account of their unique combination of molecular confinement effects and transition‐metal …