Olefin metathesis: what have we learned about homogeneous and heterogeneous catalysts from surface organometallic chemistry?

C Copéret, ZJ Berkson, KW Chan, J de Jesus Silva… - Chemical …, 2021 - pubs.rsc.org
Since its early days, olefin metathesis has been in the focus of scientific discussions and
technology development. While heterogeneous olefin metathesis catalysts based on …

Cationic molybdenum oxo alkylidenes stabilized by N-heterocyclic carbenes: from molecular systems to efficient supported metathesis catalysts

JV Musso, JDJ Silva, MJ Benedikter, J Groos… - Chemical …, 2022 - pubs.rsc.org
Cationic d0 group 6 olefin metathesis catalysts have been recently shown to display in most
instances superior activity in comparison to their neutral congeners. Furthermore, their …

Boosting the metathesis activity of molybdenum oxo alkylidenes by tuning the anionic ligand σ donation

J De Jesus Silva, M Pucino, F Zhai, D Mance… - Inorganic …, 2021 - ACS Publications
The catalytic performances of molecular and silica-supported molybdenum oxo alkylidene
species bearing anionic O ligands [ORF9, OTPP, OHMT–where ORF9= OC (CF3) 3, OTPP …

Cationic Molybdenum Imido Alkylidene N‐Heterocyclic Carbene Complexes Confined in Mesoporous Silica: Tuning Transition States Towards Z‐Selective Ring …

EL Goldstein, F Ziegler, AK Beurer, Y Traa… - …, 2022 - Wiley Online Library
We recently reported a method for selective macro (mono) cyclization of dienes utilizing
catalysts confined inside the pores of mesoporous silica, which we believe occurs due to …

Macrocyclization of Dienes under Confinement with Cationic Tungsten Imido/Oxo Alkylidene N‐Heterocyclic Carbene Complexes

F Ziegler, JR Bruckner, M Nowakowski… - …, 2023 - Wiley Online Library
Macrocyclization reactions are still challenging due to competing oligomerization, which
requires the use of small substrate concentrations. Here, the cationic tungsten imido and …

Olefin Metathesis Catalysts Generated In Situ from Molybdenum (VI)‐Oxo Complexes by Tuning Pendant Ligands

DF Nater, CJ Kaul, L Lätsch, H Tsurugi… - … A European Journal, 2022 - Wiley Online Library
Tailored molybdenum (VI)‐oxo complexes of the form MoOCl2 (OR) 2 (OEt2) catalyse olefin
metathesis upon reaction with an organosilicon reducing agent at 70° C, in the presence of …

Synthetic and Structural Peculiarities of Neutral and Cationic Molybdenum Imido and Tungsten Oxo Alkylidene Complexes Bearing Weakly Coordinating N …

MR Buchmeiser, D Wang, R Schowner… - European Journal of …, 2024 - Wiley Online Library
The syntheses of the neutral molybdenum imido alkylidene N‐heterocyclic carbene (NHC)
complexes of the general formula [Mo (NAr)(CHCMe2Ph)(NHC) XY](Ar= 2‐tBu‐C6H4, 2 …

Increasing Olefin Metathesis Activity of Silica‐Supported Molybdenum Imido Adamantylidene Complexes through E Ligand σ‐Donation

DF Nater, B Paul, L Lätsch, RR Schrock… - Helvetica Chimica …, 2021 - Wiley Online Library
Molybdenum imido adamantylidene complexes with different substituents on the imido
ligand (dipp= 2, 6‐diisopropylphenyl, ArF5= C6F5, and tBu) having distinct electron …

W‐oxo Adamantylidenes: Stable Molecular Precursors for Efficient Silica‐Supported Metathesis Catalysts

DF Nater, M Boudjelel, L Lätsch… - Helvetica Chimica …, 2022 - Wiley Online Library
Tungsten oxo adamantylidenes (= Ad) are a new class of readily accessible alkylidenes, that
opens the possibility to evaluate a broader class of molecular and supported olefin …

[PDF][PDF] Makrozyklisierung in definierten Geometrien: Olefinmetathese-Katalysatoren immobilisiert in maßgeschneiderten mesoporösen Materialien

F Ziegler - 2022 - elib.uni-stuttgart.de
Nach einer langen angenehmen gemeinsamen Zeit mit vielen Herausforderungen und
spannenden Erkenntnissen möchte ich mich bei Prof. Dr. Michael R. Buchmeiser für sein …