Results 21 to 30 of about 938,190 (242)
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
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
Stereoselectivity of Macrocyclic Ring-Closing Olefin Metathesis [PDF]
Organic Letters, 2000 [reaction: see text] Macrocyclic ring-closing olefin metathesis using ruthenium catalyst 3 was performed to produce a 14-membered lactone. The E/Z ratio of lactone was high regardless of the R group (auxiliary) or the initial alkene stereochemistry.
Lee, Choon Woo, Grubbs, Robert H.
openaire +4 more sources
A New Variant of Fused Cyclic Ether Synthesis Based on Ireland-Claisen Rearrangement and RCM
Natural Product Communications, 2013 A new variant of fused cyclic ether synthesis based on Ireland-Claisen rearrangement and ring-closing olefin metathesis (RCM) was developed. The Ireland-Claisen rearrangement and ring-closing olefin metathesis (RCM) was developed.
Daisuke Domon +5 more
doaj +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
Polycyclic Aromatic Hydrocarbons by Ring‐Closing Metathesis. [PDF]
ChemInform, 2005 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Margel C, Bonifacio +3 more
openaire +2 more sources
Natural Product Communications, 2017 Metathesis reactions is firmly established as a valuable synthetic tool in organic chemistry, clearly comparable with the venerable Diels-Alder and Wittig reactions and, more recently, with the metal-catalyzed cross-coupling reactions.
Silvia Roscales, Joaquín Plumet
doaj +1 more source
Tandem Catalytic Asymmetric Ring-Opening Metathesis/Ring-Closing Metathesis
, 2016 Tandem Catalytic Asymmetric Ring-Opening Metathesis/Ring-Closing ...
Richard R. Schrock (1295601) +4 more
core +1 more source
Tandem Cyclopropanation/Ring-Closing Metathesis of Dienynes
, 2016 Certain dienynes give cyclorearrangement by tandem cyclopropanation/ring-closing alkene metathesis, triggered by either a ruthenium carbene or noncarbene ruthenium(II) precatalyst.
Steven T. Diver (1667287) +1 more
core +1 more source
, 2016 7-Azanorbornenes undergo ring-opening/ring-closing metathesis upon treatment with the second-generation Grubbs catalyst to give hexahydroindoline ...
Jon D. Rainier (1688194) +1 more
core +2 more sources