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pro vyhledávání: '"Henrik Gulyas"'
Transition-Metal-Free Diboration Reaction by Activation of Diboron Compounds with Simple Lewis Bases
Publikováno v:
Angewandte Chemie International Edition. 50:7158-7161
Synthetically useful diboronic reagents are efficiently prepared by reaction of nucleophilic substrates and nucleophilic reagents in the presence of methanol and a Lewis base.
Publikováno v:
Chemistry - An Asian Journal. 6:1011-1014
The influence of Fe and/or phosphine catalysis on the β-borylation of α,β-unsaturated carbonyl or imine compounds is studied.
Publikováno v:
Current Organic Chemistry. 14:2531-2548
Autor:
Amadeu Bonet, Elena Fernández, Mercedes Sanaú, Francisco Estevan, M. Angeles Ubeda, Igor O. Koshevoy, Henrik Gulyas
Publikováno v:
Chemistry - A European Journal. 16:6382-6390
Diphenyl(3-methyl-2-indolyl)phosphine (C(9)H(8)NPPh(2), 1) gives stable dimeric palladium(II) complexes that contain the phosphine in P,N-bridging coordination mode. On treating 1 with [Pd(O(2)CCH(3))(2)], the new complexes [Pd(mu-C(9)H(7)NPPh(2))(NC
Autor:
Xavier Sanz, Elena Fernández, Graham M. Lee, Stephen A. Westcott, Carles Bo, Henrik Gulyas, Cristina Pubill-Ulldemolins, Amadeu Bonet
Publikováno v:
ChemInform. 45
The title reaction proceeds with total chemoselectivity towards polyfunctionalized allyl boronates (III), (V), and (VII).
Autor:
Amadeu Bonet, Stephen A. Westcott, Graham M. Lee, Elena Fernández, Henrik Gulyas, Cristina Pubill-Ulldemolins, Carles Bo, Xavier Sanz
Publikováno v:
Organicbiomolecular chemistry. 11(40)
A rational approach towards the borylative ring-opening of vinylepoxides and vinylaziridines, by the in situ formed MeO(-)→bis(pinacolato)diboron adduct, has been developed. The enhanced nucleophilic character of the Bpin (sp(2)) moiety from the re
Autor:
Henrik Gulyás, Shigetaka Hayano, Ádám Madarász, Imre Pápai, Márk Szabó, Ágota Bucsai, Eddy Martin, Jordi Benet-Buchholz
Publikováno v:
Communications Chemistry, Vol 4, Iss 1, Pp 1-11 (2021)
Air-sensitive molybdenum olefin metathesis catalysts are known to form stable but inactive adducts with appropriate chelating ligands, but regenerating the active catalyst requires the use of Lewis acids and vigorous conditions. Here, tuning the elec
Externí odkaz:
https://doaj.org/article/3534933d432a426aa3ec32108001b96d
Publikováno v:
ChemInform. 43
Based on preliminary studies it is claimed that an in situ generated MeO-—bis(pinacolato)diboron adduct combined with the chiral phosphine allows the asymmetric synthesis of title compounds (III) via enantioselective nucleophilic boron addition to
Publikováno v:
ChemInform. 43
Boron compounds have been traditionally regarded as “Lewis acids” preferring to accept electrons rather than donate them in the course of their reactions but current examples of unusual reactivity between tricoordinated boranes and electrophilic
Publikováno v:
Chemical communications (Cambridge, England). 48(31)
Organocatalytic nucleophilic pinacolboryl addition from in situ generated MeO(-)→ B(2)pin(2) to C=N double bond can be performed enantioselectively with the aid of chiral phosphines, which promote enantiofacial differentiation in the course of the