3195-24-2Relevant articles and documents
Ring-closing olefin metathesis in the aqueous phase of amphiphilic conetworks consisting of fluorophilic and hydrophilic compartments
Hensle, Eva M.,Tobis, Jan,Tiller, J?rg C.,Bannwarth, Willi
, p. 968 - 973 (2008)
A Grubbs-Hoveyda-Type metathesis catalyst bearing a tris(perfluoroalkyl)silyl tag was immobilized in the fluorophilic phase of amphiphilic conetworks (APCNs). This catalytic system was applied to ring-closing metathesis (RCM) reactions in aqueous media. Different substrates were evaluated and with 10 mol% of catalyst at 60 °C good conversions were observed. Reuse of the catalytic system was possible, but resulted generally in lower conversions.
REACTIONS OF ORGANOCOBALT COMPLEXES WITH BROMOESTERS: REGIOSPECIFIC SYNTHESIS OF ALLYL- AND CYCLOPROPYLMETHYL-SUBSTITUTED MALONIC AND ACETOACETIC ESTERS
Veber, M.,Duong, K.N.-V.,Gaudemer, A.,Johnson, M. D.
, p. 393 - 400 (1981)
Allyl(pyridine)cobaloximes RCo(dmgH)2Py (R = allyl) react readily with diethyldibromomalonate, diethylbromomethylmalonate and ethyl 2-bromoacetoacetate to give the corresponding allyl-substituted esters.Transfer of the allyl group occurs with complete rearrangement in all but one cases.Buten-3-yl(pyridine)cobaloximes react with diethylbromomalonate giving cyclopropylmethylmalonic esters.
Ruthenium-catalyzed cross-metathesis between diallylsilanes and electron-deficient olefins
Bouzbouz, Samir,Boulard, Lucie,Cossy, Janine
, p. 3765 - 3768 (2007)
Diallysilanes can be selectively coupled with electron-deficient olefins under cross-metathesis (CM) conditions using the Hoveyda-Grubbs catalyst to produce mono- and/or bis-CM compounds in good yield. The formation of the mono- and the bis-CM compounds depends on the nature of the electron-deficient olefin.
Synthesis and anti-HCMV activity of novel 5′-norcarboacyclic nucleosides
Kim, Aihong,Hong, Joon Hee
, p. 522 - 527 (2005)
A very simple route for synthesizing a novel carboacyclic version of 5￠-noraristeromycin is described. Condensation of the mesylates 9 and 23 with the natural nucleosidic bases (A, U, T, C) under standard nucleophilic substitution (K2CO3, 18-Crown-6, DMF) and deblocking conditions, afforded the target nucleosides 14, 15, 16, 17, 28, 29, 30, and 31. In addition, these compounds were evaluated for their antiviral properties against various viruses.
Correction: Exploiting and understanding the selectivity of Ru-N-heterocyclic carbene metathesis catalysts for the ethenolysis of cyclic olefins to α,ω-Dienes (Journal of the American Chemical Society (2017) 139:37 (13117-13125) DOI: 10.1021/jacs.7b06947)
Engl, Pascal S.,Santiago, Celine B.,Gordon, Christopher P.,Liao, Wei-Chih,Fedorov, Alexey,Copéret, Christophe,Sigman, Matthew S.,Togni, Antonio
supporting information, p. 18227 - 18228 (2019/01/09)
The isotropic chemical shielding (iso) was mislabeled as the isotropic chemical shift (iso) in Table S40, Figures 2, 4, S153 and in the respective discussion of these figures in the text. The corrected figures are shown below; the SI graphics are provided in the corrected SI file. In the conclusion section, "cyclic olefins" was incorrectly written as "cyclic dienes" to be the essential structural feature for the selective ethenolysis toward w-dienes. The ROMP activity of Ru-20 is not detectable in the "presence of ethylene"; this was incorrectly written as the "absence of ethylene". Equations 5 and 7, pages S47 and S135 respectively, had errors that have been fixed in the corrected SI file. None of the above affects any conclusions of the article. (Figure Presented).
Rhodium-Catalyzed Cyclization of O,ω-Unsaturated Alkoxyamines: Formation of Oxygen-Containing Heterocycles
Escudero, Julien,Bellosta, Véronique,Cossy, Janine
supporting information, p. 574 - 578 (2018/02/21)
O,ω-Unsaturated N-tosyl alkoxyamines undergo unexpected RhIII-catalyzed intramolecular cyclization by oxyamination to produce oxygen-containing heterocycles. Mechanistic studies show that an aziridine intermediate seems to be responsible for the formation of the heterocycles, possibly via a RhV species.
