Results 21 to 30 of about 17,231 (260)
Halide exchanged Hoveyda-type complexes in olefin metathesis
Beilstein Journal of Organic Chemistry, 2010 The aims of this contribution are to present a straightforward synthesis of 2nd generation Hoveyda-type olefin metathesis catalysts bearing bromo and iodo ligands, and to disclose the subtle influence of the different anionic co-ligands on the catalytic ...
Julia Wappel +6 more
doaj +1 more source
Recent applications of ring-rearrangement metathesis in organic synthesis
Beilstein 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
Highly Active Water-Soluble Olefin Metathesis Catalyst [PDF]
, 2006 A novel water-soluble ruthenium olefin metathesis catalyst supported by a poly(ethylene glycol) conjugated saturated 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene ligand is reported.
Grubbs, Robert H., Hong, Soon Hyeok
core +1 more source
First Total Synthesis of Cryptopyranmoscatone A3 and Cryptopyranmoscatone B4
SynOpen, 2018 The first total synthesis of cryptopyranmoscatones A3 and B4 has been accomplished from d-ribose or but-3-ynol. The key steps involved in the synthesis are oxa-Michael addition, highly diastereoselective Brown allylation, and ring closing metathesis ...
A. Maheswara Reddy, Gowravaram Sabitha
doaj +1 more source
Bidentate N,O-prolinate ruthenium benzylidene catalyst highly active in RCM of disubstituted dienes [PDF]
, 2007 The synthesis of a bidentate N,O-prolinate ruthenium benzylidene from commercially available starting materials and its activity in ring-closing metathesis of functionalized disubstituted dienes at 30 °C is ...
Grubbs, Robert H., Samec, Joseph S. M.
core +3 more sources
Beilstein Journal of Organic Chemistry, 2019 A novel and efficient approach to the synthesis of 2-vinylbenzylamines is reported. This involves obtaining 2-vinylbenzylamine ligands from tetrahydroisoquinoline by alkylation and reduction followed by the Hofmann cleavage.
Kirill B. Polyanskii +6 more
doaj +1 more source
Cascade metathesis reactions for the synthesis of taxane and isotaxane derivatives [PDF]
, 2016 Tricyclic isotaxane and taxane derivatives and have been synthesized by a very efficient cascade ring-closing dienyne metathesis (RCDEYM) reaction, which formed the A and B rings in one operation.
Aouzal, Remi +7 more
core +3 more sources
Ring closing metathesis in protic media by means of a neutral and polar ruthenium benzylidene complex [PDF]
, 2002 The ring closing olefine metathesis in protic solvents using a new ruthenium benzylidene complex is ...
Grubbs, Robert H., Rölle, Thomas
core +1 more source
Light-induced olefin metathesis
Beilstein Journal of Organic Chemistry, 2010 Light activation is a most desirable property for catalysis control. Among the many catalytic processes that may be activated by light, olefin metathesis stands out as both academically motivating and practically useful.
Yuval Vidavsky, N. Gabriel Lemcoff
doaj +1 more source
Functional metathesis catalyst through ring closing enyne metathesis: one pot protocol for living heterotelechelic polymers [PDF]
, 2018 Enyne ring closing metathesis has been used to synthesize functional group carrying metathesis catalysts from a commercial (Ru-benzylidene) Grubbs’ catalysts.
Kilbinger, Andreas F. M. +3 more
core +1 more source