Results 201 to 210 of about 938,190 (242)

Synthesis of Spirocyclic Butenolides by Ring Closing Metathesis.

ChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
Peter Langer, Uwe Albrecht
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Ring-closing metathesis in peptides

Tetrahedron Letters, 2016
Abstract This review highlights developments in the field of ring-closing metathesis applied to the synthesis of cyclic peptides. Special attention is focussed on the synthesis of dicarba peptides that mimic native cystine containing peptides. Recent advances in the field are discussed, including the stereoselective synthesis of carbon-bridged ...
Ellen C. Gleeson, W. Roy Jackson, Andrea J. Robinson   +2 more
openaire   +1 more source

Synthesis of the mycolactone core by ring-closing metathesis

Chemical Communications, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Matthew D, Alexander, Shaun D, Fontaine, James J, La Clair, Antonio G, Dipasquale, Arnold L, Rheingold, Michael D, Burkart   +5 more
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Macrocycles by Ring-Closing Metathesis

Synthesis, 1997
The ruthenium carbene complexes 1 and 2 (0.05-5 mol%) catalyse highly efficient macrocyclization reactions of 1,ω-dienes by ring-closing metathesis (RCM). Key parameters for successful RCM are (i) the presence of a functional group which serves as a relay entity that assembles the reacting sites, (ii) an appropriate distance between this polar group ...
Fürstner, A., Langemann, K.
openaire   +2 more sources

Ruthenium Promoted On-DNA Ring-Closing Metathesis and Cross-Metathesis

Bioconjugate Chemistry, 2017
DNA-encoded library technology (ELT) is now widely used in pharmaceutical, biotechnological, and academic research for hit identification and target validation. New on-DNA reactions are keys to exploring greater chemical space and accessing challenging chemotypes such as configurationally constrained macrocycles.
Xiaojie Lu, Lijun Fan, Christopher B. Phelps, Christopher P. Davie, Christine P. Donahue   +4 more
openaire   +2 more sources

2.1.2 Ring-Closing Metathesis

2018
AbstractThis chapter describes the use of ruthenium alkylidene complexes bearing N-heterocyclic carbene ligands as catalysts for the preparation of cyclic compounds (from 5- to 33-membered rings) by metathesis. Also included are examples of asymmetric metathesis using catalysts bearing chiral N-heterocyclic carbenes.
J. Broggi, H. Clavier
openaire   +1 more source

Ring-Closing Metathesis

2007
S. V. Ley, L.-G. Milroy, R. M. Myers
openaire   +2 more sources

Ring-closing metathesis (RCM)

2009
All three catalysts are illustrated as “LnM=CHR” in the mechanism below.
openaire   +1 more source

Ring-Closing Metathesis

2008
R. Sato, T. Kimura
openaire   +1 more source

Ring-Closing Metathesis

2010
S. Toyota, T. Iwanaga
openaire   +1 more source