Results 21 to 30 of about 42,464 (282)

Progress in metathesis chemistry [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2019
AT_PUBLICATION
Karol Grela, Anna Kajetanowicz
openaire   +4 more sources

The allylic chalcogen effect in olefin metathesis

open access: yesBeilstein Journal of Organic Chemistry, 2010
Olefin metathesis has emerged as a powerful tool in organic synthesis. The activating effect of an allylic hydroxy group in metathesis has been known for more than 10 years, and many organic chemists have taken advantage of this positive influence for ...
Yuya A. Lin, Benjamin G. Davis
doaj   +1 more source

Alkene Metathesis Catalysis: A Key for Transformations of Unsaturated Plant Oils and Renewable Derivatives

open access: yesOil & Gas Science and Technology, 2016
This account presents the importance of ruthenium-catalysed alkene cross-metathesis for the catalytic transformations of biomass derivatives into useful intermediates, especially those developed by the authors in the Rennes (France) catalysis team in ...
Dixneuf Pierre H.   +2 more
doaj   +1 more source

Taking Olefin Metathesis to the Limit: Stereocontrolled Synthesis of Trisubstituted Alkenes

open access: yes, 2023
International audienceIn this Account, we share the story of the development of catalytic olefin metathesis processes that efficiently deliver a wide range of acyclic and macrocyclic E- or Z-trisubstituted alkenes.
Liu, Qinghe   +11 more
core   +1 more source

New Approaches to Olefin Cross-Metathesis

open access: yes, 2016
New methodology for the selective cross-metathesis (CM) of terminal olefins employing ruthenium benzylidene 1 is described. CM with symmetric internal olefins was found to provide a useful means for homologating terminal olefins to protected allylic ...
Helen E. Blackwell (1247094)   +5 more
core   +2 more sources

Highly active alkyne metathesis catalysts operating under open air condition

open access: yesNature Communications, 2021
Alkyne metathesis catalysts usually suffer from high moisture/air sensitivity, which limit their wide applicability. Here, the authors report efficient alkyne metathesis catalysts that can operate under open-air conditions with a broad functional group ...
Yanqing Ge   +8 more
doaj   +1 more source

Application of olefin metathesis in the synthesis of functionalized polyhedral oligomeric silsesquioxanes (POSS) and POSS-containing polymeric materials

open access: yesBeilstein Journal of Organic Chemistry, 2019
This mini-review summarizes the applications of olefin metathesis in synthesis and functionalization of polyhedral oligomeric silsesquioxanes (POSS) and POSS-containing polymeric materials.
Patrycja Żak, Cezary Pietraszuk
doaj   +1 more source

Recent applications of ring-rearrangement metathesis in organic synthesis

open access: yesBeilstein Journal of Organic Chemistry, 2015
Ring-rearrangement metathesis (RRM) involves multiple metathesis processes such as ring-opening metathesis (ROM)/ring-closing metathesis (RCM) in a one-pot operation to generate complex targets.
Sambasivarao Kotha   +4 more
doaj   +1 more source

Ring-closing metathesis of prochiral oxaenediynes to racemic 4-alkenyl-2-alkynyl-3,6-dihydro-2H-pyrans

open access: yesBeilstein Journal of Organic Chemistry, 2020
The prochiral 4-(allyloxy)hepta-1,6-diynes, optionally modified in the positions 1 and 7 with an alkyl or ester group, undergo a chemoselective ring-closing enyne metathesis yielding racemic 4-alkenyl-2-alkynyl-3,6-dihydro-2H-pyrans.
Viola Kolaříková   +3 more
doaj   +1 more source

Where r you going? A typology of long-distance metathesis of liquids

open access: yesIsogloss, 2022
This paper offers a typological analysis of the diachronic phenomena of long-distance metathesis of liquids that thrive in the history of several Romance languages.
Eirini Apostolopoulou
doaj   +1 more source

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