Results 61 to 70 of about 3,168 (214)
Dual Activation of H2 and CO2 by a Pincer‐Type Ni–Zn Heterobimetallic Complex
Angewandte Chemie, EarlyView.A bimetallic Ni−Zn complex performs sequential activations of H2 (1 equiv) and CO2 (2 equiv). This bimetallic cooperativity is attributed to the weak Lewis acidic nature of Zn(II), which promotes fluxional ligand binding. Namely, an X‐type ligand at Ni, where X is hydride or formate, toggles between two different binding modes: bridging Zn(μ‐X)Ni and ...
Krishnendu Dey +3 more
wiley +2 more sources
Beilstein Journal of Organic Chemistry, 2015 Two ruthenium olefin metathesis initiators featuring electronically modified quinoline-based chelating carbene ligands are introduced. Their reactivity in RCM and ROMP reactions was tested and the results were compared to those obtained with the parent ...
Karolina Żukowska +5 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2013 A variety of highly functionalized indole-based [n.3.3]propellane derivatives is described. The synthesis of the propellane derivatives involves a Weiss–Cook condensation, a Fischer indole cyclization, and a ring-closing metathesis as key steps.
Sambasivarao Kotha +2 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2020 A fast, protecting-group-free synthesis of dihydropyridinones has been developed. Starting from commercially available aldehydes, a novel one-pot amidoallylation gave access to diene compounds in good yields.
Thomas J. Cogswell +2 more
doaj +1 more source
A short stereoselective synthesis of (+)-(6R,2′S)-cryptocaryalactone via ring-closing metathesis
Beilstein Journal of Organic Chemistry, 2009 A short stereoselective synthesis of (+)-(6R,2′S)-cryptocaryalactone was successfully completed. Key steps included the application of Carreira’s asymmetric alkynylation reaction to form a propargylic alcohol and subsequently lactone formation using the ...
Palakodety Radha Krishna +2 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2015 We have developed a simple methodology to transform cis-syn-cis-triquinane derivative 2 into the diindole based macrocycle 6 involving Fischer indolization and ring-closing metathesis (RCM).
Sambasivarao Kotha +2 more
doaj +1 more source
Olefin cross metathesis and ring-closing metathesis in polymer chemistry [PDF]
Polymer Chemistry, 2017 The use of olefin cross metathesis in preparing functional polymers, through either pre-functionalisation of monomers or post-polymerisation functionalisation is growing in both scope and breadth, as discussed in this review article.
Fern Sinclair +3 more
openaire +4 more sources
Beilstein Journal of Organic Chemistry, 2015 Iodide-containing nitro-Grela-type catalysts have been synthesized and applied to ring closing metathesis (RCM) and cross metathesis (CM) reactions. These new catalysts have exhibited improved efficiency in the transformation of sterically, non-demanding
Andrzej Tracz +3 more
doaj +1 more source
A Concise and Stereoselective Total Synthesis of Paecilomycin E
Natural Product Communications, 2019 A concise approach for the first total synthesis of paecilomycin E is described involving Alder-Rickert reaction, Mitsunobu esterification and ring closing metathesis as the key steps.
A. Srinivas Reddy +4 more
doaj +1 more source
First Stereoselective Total Synthesis of (3)-De--methylbotryosphaeriodiplodin
Natural Product Communications, 2019 A simple and highly efficient first stereoselective total synthesis of a benzofused macrocyclic lactone, ( 3S,7R )-de- O -methylbotryosphaeriodiplodin has been accomplished utilizing Jacobson's kinetic resolution, Marouka asymmetric allylation, Stille ...
Jhillu S. Yadav +5 more
doaj +1 more source