Results 21 to 30 of about 4,393 (185)
Química Nova, 2022 LN-1 and LN-2 are two Ru(II) complexes coordinated to the phosphine and amines simultaneously, each with two chlorides. PPh3 is the phosphine and the amine is piperidine (LN-1) and perhydroazepine (LN-2).
Kerlane A. Fernandes +6 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2018 This review summarizes the recent progress of Grubbs–Hoveyda (GH) type olefin metathesis catalysts incorporated into the robust fold of β-barrel proteins.
Daniel F. Sauer +4 more
doaj +1 more source
Construction of ion bonds in gel-free polydiene-based ionomers without compromising molecular weight
Polymer Testing, 2022 Rubber-based ionomers have attracted extensive research interest from academy and industry attributing to their distinct physical mechanical properties.
Song Yue +3 more
doaj +1 more source
Trisoxazole Macrolides Potentiate the Microtubule Assembly and Antimitotic Activities of Taxanes
Angewandte Chemie, EarlyView.Photoaffinity experiments identified tubulin as a new target of mycalolides. Though weakly cytotoxic, the trisoxazole macrolactone moiety enhanced paclitaxel's microtubule assembly and antimitotic effects. Molecular modeling studies suggested that MyC stabilizes α/β‐tubulin heterodimer interactions.
Shohei Ebihara +4 more
wiley +2 more sources
Olefin metathesis in nano-sized systems
Beilstein Journal of Organic Chemistry, 2011 The interplay between olefin metathesis and dendrimers and other nano systems is addressed in this mini review mostly based on the authors’ own contributions over the last decade.
Didier Astruc +7 more
doaj +1 more source
Angewandte Chemie, EarlyView.We demonstrate here the transformation of NBR (Nitrile butadiene rubber) including post‐consumer waste sourced from nitrile gloves and o‐rings into polyamines and polyols via ruthenium catalyzed hydrogenation. ABSTRACT We report here two new approaches for the chemical recycling/upcycling of nitrile butadiene rubber (NBR) to make either polyamines or ...
Alejandra Sophia Lozano Perez +7 more
wiley +2 more sources
Total Synthesis of the Spirocyclic Bis‐Indole Alkaloid (−)‐Owerreine via a [4+2] Annulation
Angewandte Chemie, EarlyView.The total synthesis of the bis‐indole alkaloid (−)‐owerreine has been accomplished by a diastereoselective [4+2] annulation between an enamine and an α,β−unsaturated indolenine precursor to form the 3‐spirocyclic tetrahydropyridine linkage of the natural product. DFT calculations allow an understanding of the mechanism of the key annulation.
Elisa Coll +4 more
wiley +2 more sources
Synthesis of Tetrasubstituted Alkenes via Metathesis
Molecules, 2012 Fully substituted olefin generation via metathesis is presented. Catalyst development, optimization of reaction conditions and substrate screening are included.
Seung-Mann Paek
doaj +1 more source
Angewandte Chemie, EarlyView.It may seem counterintuitive to first target a ruthenium alkylidyne when Grubbs‐type ruthenium carbene complexes are the actual goal. In the end, however, this tactic pays valuable dividends in terms of practicality, atom economy, flexibility as well as safety: the new route provides ready access to a large assortment of catalysts for alkene metathesis
Mingxu Cui, Alois Fürstner
wiley +2 more sources
Probing the Electronic Structure of Spectator Oxo Ligands by 17O NMR Spectroscopy
CHIMIA, 2020 Spectator oxo ligands are ubiquitous in catalysis, in particular in olefin epoxidation and olefin metathesis. Here we use computationally derived 17O NMR parameters to probe the electronic structure of spectator oxo ligands in these two reactions.
Christopher P. Gordon +1 more
doaj +1 more source