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pro vyhledávání: '"Paul S. Pregosin"'
Autor:
Paul S. Pregosin
Publikováno v:
CHIMIA, Vol 55, Iss 10 (2001)
A useful aid in enantioselective homogeneous catalysis, new chiral complexes based on phosphorus acid and a novel approach to recognizing ion-pairing are described.
Externí odkaz:
https://doaj.org/article/250c9f201a66420fb1b43425ec175211
Autor:
Paul S. Pregosin
Publikováno v:
Magnetic Resonance in Chemistry. 55:405-413
This mini-review provides a brief overview of the use of NMR diffusion methods in connection with estimating molecular weights in solution, recognizing hydrogen bonding and encapsulation processes and, primarily, identifying and estimating the varyin
POSE 1H and 19F diffusion data, D values, and 1H 19F HOESY NMR spectra for a series of [RuCl(p-cymene)(BINAP)]X salts, 2a-f, have been recorded in CD 2Cl 2 (X = BF 4- (2a), CF 3 SO 3- (2b), BArF - (2c), PF 6-(2d), SbF 6- (2e), Cl - (2f)). The solvent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30a07efc2acde9627658925e4c662517
https://doi.org/10.1021/om030145p
https://doi.org/10.1021/om030145p
Autor:
Philippe Bazin, Fabio Bruni, Marco Daturi, K. B. Dillon, Peter M. Fredericks, Lynn F. Gladden, Rosemary A. Goodall, Georg Held, Mali Hunsom, Rosaria Mancinelli, Olivier Marie, Edward J. Parrott, Paul S. Pregosin, Maria Antonietta Ricci, J. Axel Zeitler
Publikováno v:
Spectroscopic Properties of Inorganic and Organometallic Compounds. :P001-P004
Autor:
Paul S. Pregosin, Araminta E. W. Ledger, Michael K. Whittlesey, Aitor Moreno, Jonathan M. J. Williams, Charles E. Ellul, Mary F. Mahon
Publikováno v:
Inorganic Chemistry. 49:7244-7256
Treatment of Ru(PPh3)3HCl with the pincer phosphines 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene (xantphos), bis(2-diphenylphosphinophenyl)ether (DPEphos), or (Ph2PCH2CH2)2O affords Ru(P−O−P)(PPh3)HCl (xantphos, 1a; DPEphos, 1b; (Ph2PCH2CH2)2
Autor:
Paul S. Pregosin, Stefan Gruber
Publikováno v:
Advanced Synthesis & Catalysis. 351:3235-3242
The new ruthenium-sulfonate catalyst Ru(Cp*)(η 3 -C 3 H 5 )(p-CH 3 C 6 H 4 SO 3 ) 2 , (Cp * = pentamethylcyclopentadienyl), rapidly and regioselectively mono-allylates dimedone to the branched products using substituted allyl alcohols as substrates,
Publikováno v:
Organometallics. 28:6432-6441
A series of salts composed of the coordinatively unsatd. areneruthenium β-diketiminato cation and different anions, [(η6-C6H6)Ru(ArN:CMeCHCMe:NAr)][X] (1-4; Ar = 2,6-dimethylphenyl; X = OTf-, BF4-, PF6-, BPh4-) and [(η6-C6H6)Ru(ArN:CMeCHCMe:NAr)][
Autor:
L. Jonas L. Häller, Suzanne Burling, Stuart MacGregor, Elena Mas-Marzá, Paul S. Pregosin, Mary F. Mahon, Aitor Moreno, Michael K. Whittlesey
Publikováno v:
Chemistry - A European Journal. 15:10912-10923
The five-coordinate ruthenium N-heterocyclic carbene (NHC) hydrido complexes [Ru(IiPr(2)Me(2))(4)H][BAr(F) (4)] (1; IiPr(2)Me(2)=1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene; Ar(F)=3,5-(CF(3))(2)C(6)H(3)), [Ru(IEt(2)Me(2))(4)H][BAr(F) (4)] (2; IEt(
Ion Pairing and Salt Structure in Organic Salts through Diffusion, Overhauser, DFT and X-ray Methods
Publikováno v:
Chemistry - A European Journal. 15:6848-6862
Pulsed gradient spin-echo (PGSE) diffusion characteristics for a) the new [brucinium][X] salts 6 a-f [a: X = BF(4)(-); b: X = PF(6)(-); c: X = MeSO(3)(-), d: X = CF(3)SO(3)(-); e: X = BArF(-); f: X = PtCl(3)(C(2)H(4))(-)], b) 4-tert-butyl-N-benzyl an
Publikováno v:
Chemistry - A European Journal. 15:6468-6477
Green and fast: Allylation of aromatic and aliphatic thiols, by using allyl alcohols as substrates, requires only minutes at ambient temperature with a Ru catalyst (see scheme). Quantitative conversion is normal and the catalyst possesses high functi