Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Graham M. Lee"'
Publikováno v:
Tetrahedron. 75:2106-2112
In this study we have studied the synthesis, characterization and catalytic activity of phosphinocopper(I) complexes [Cu(PPh3)3(NCCH3)][B(O2C6H4-4-R)2] (3a: R = H; 3b: R = Me; 3c: R = NO2) and [Cu(PPh3)3(NCCH3)][B(O2C6H3-3,5-di-tBu)2] (3d) containing
Publikováno v:
Journal of Organometallic Chemistry. 847:270-277
In this study, trifluoromethyl POCOP-type pincer complexes (iPrPOCOP)Ni(CF3) (1-CF3) and (iPrPOCOP)Pd(CF3) (2-CF3) are prepared. These complexes undergo Lewis acid-mediated fluoride abstraction to furnish cationic d8 difluorocarbene complexes of the
Autor:
Russell P. Hughes, Daniel J. Harrison, Graham M. Lee, R. Tom Baker, Ilia Korobkov, Alicia S. C. Leung
Publikováno v:
Organometallics. 36:2853-2860
Cobalt fluorocarbene complex CpCo(═CF(CF3))(PPh2Me) (Cp = η5-cyclopentadienyl) reacts with para-substituted phenylacetylenes to furnish partially fluorinated cobaltacyclobutene complexes [Cp(PPh2Me)Co{κ2-C(Ar)═CHCF(CF3)}], which were isolated a
Publikováno v:
Catal. Sci. Technol.. 7:4996-5003
Using a high-throughput experimental procedure, a series of cobalt(III) complexes of the general formula CpRCo(I)(X)(L) were prepared and screened for their activity towards the catalytic nucleophilic fluorination of benzoyl chloride. A highly active
Publikováno v:
Tetrahedron Letters. 57:5464-5468
A nickel catalyzed Suzuki coupling of arylboronic acids and novel bromodifluoromethyl(arylsulfonyl) compounds is described, providing an example of direct Csp2-CF2SO2Ar bond formation. High-throughput experimentation (HTE) was utilized for identifyin
Autor:
Serge I. Gorelsky, David A. Dixon, R. Tom Baker, Julia M. Bayne, Monica Vasiliu, Ilia Korobkov, Matthew C. Leclerc, Daniel J. Harrison, Graham M. Lee
Publikováno v:
Journal of the American Chemical Society. 137:16064-16073
Four perfluoroalkyl cobalt(III) fluoride complexes have been synthesized and characterized by elemental analysis, multinuclear NMR spectroscopy, X-ray crystallography, and powder X-ray diffraction. The remarkable cobalt fluoride (19)F NMR chemical sh
Publikováno v:
Journal of the American Chemical Society. 135:18296-18299
Cobalt fluorocarbene complexes CpCo(═CFR(F))(PPh2Me) (Cp = η(5)-C5H5, R(F) = F or CF3) react with tetrafluoroethylene to give the metallacyclobutanes CpCo(κ(2)-CFR(F)CF2CF2-)(PPh2Me) in the first examples of cycloaddition reactions between perflu
Autor:
Nathan R. Halcovitch, Christopher M. Vogels, Michael J. Geier, Christopher A. Gray, Andreas Decken, Taryn O'Neill, Andrew J. Flewelling, Eric G. Bowes, Michael I. Webb, Graham M. Lee, Haoxin Li, Stephen A. Westcott
Publikováno v:
Journal of Heterocyclic Chemistry. 51:157-161
A family of arylspiroborates has been prepared by the addition of either 4-tert-butylcatechol or 3,5-di-tert-butylcatechol to boric acid and an alkali metal hydroxide. All compounds were characterized fully using multinuclear NMR spectroscopy and by
Publikováno v:
Organometallics. 32:12-15
Unusual nucleophilic cobalt fluorocarbene complexes ([CoI]═CFR; R = F, CF3) are described. Only a handful of fluorocarbenes of first-row transition metals have been reported, and these have exhibited electrophilic reactivity at the metal–carbene
Autor:
Nicole M. Hunter, Glen G. Briand, Andreas Decken, Graham M. Lee, Evan M. Owen, Jennifer Melanson
Publikováno v:
Polyhedron. 31:796-800
The reaction of Ph2BiCl with (PhS)Li or (2,6-Me2C6H3S)Li yielded [Ph2BiSPh]∞ (7) or Ph2BiS(2,6-Me2C6H3)] (8), respectively. Both compounds have been characterized by elemental analysis, melting point, FT-IR, FT-Raman, solution 1H and 13C{1H} NMR, a