Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Dimitri M. Khramov"'
Autor:
Christopher W. Bielawski, Andrew G. Tennyson, Evelyn L. Rosen, Daphne H. Sung, Philip T. Cresswell, C. Daniel Varnado, Vincent M. Lynch, Dimitri M. Khramov, Justin W. Kamplain
Publikováno v:
Organometallics. 28:6695-6706
To investigate effects of redox-active functional groups on the coordination chemistry and electronic properties of N-heterocyclic carbenes (NHCs), we prepared a series of complexes comprising 1,3-diferrocenylimidazolylidene and -benzimidazolylidene
Autor:
Philip T. Creswell, C. Daniel Varnado, Dimitri M. Khramov, Justin W. Kamplain, Andrew G. Tennyson, Vincent M. Lynch, Christopher W. Bielawski
Publikováno v:
Organometallics. 28:5142-5147
Reaction of 1,1′,3,3′-tetra(tert-amyl)benzobis(imidazolylidene) (1) with 2 equiv of FcN3 or FcNCS afforded bisadducts [(FcN3)2(1)] (2) or [(FcNCS)2(1)] (3), respectively (Fc = ferrocene). To the best of our knowledge, these represent the first ex
Autor:
Andrew G. Tennyson, Christopher W. Bielawski, Daniel J. Coady, Dimitri M. Khramov, Brent C. Norris
Publikováno v:
Angewandte Chemie International Edition. 48:5187-5190
A click by any other name: Coupling bis(N-heterocyclic carbene)s with bis(azide)s afforded a novel class of conjugated polytriazenes. These polymers were rendered electrically conductive upon doping, and fluorene-containing variants exhibited lumines
Autor:
Daniel J. Coady, Dimitri M. Khramov, Brent C. Norris, Andrew G. Tennyson, Christopher W. Bielawski
Publikováno v:
Angewandte Chemie. 121:5289-5292
Autor:
Donald R Paul, P. J. Yoon, Dimitri M. Khramov, Christopher W. Bielawski, Lili Cui, D. L. Hunter
Publikováno v:
Polymer. 49:3751-3761
The alkylammonium surfactants used to form commercial organoclays are known to begin to degrade at temperatures below the typical melt processing temperatures of some polymers. In this study, the thermal stability and degradation of various surfactan
Autor:
Joyce A.V. Er, Dimitri M. Khramov, Peter D. Vu, Vincent M. Lynch, Christopher W. Bielawski, Evelyn L. Rosen
Publikováno v:
Tetrahedron. 64:6853-6862
The effect of tuning the electronic properties of N-heterocyclic carbene (NHC) ligands was evaluated in multiple, mechanistically distinct, metal-mediated reactions. Hydroboration and Heck reactions, catalyzed by Rh–NHC and Pd–NHC complexes, resp
Publikováno v:
Angewandte Chemie. 120:2299-2302
Publikováno v:
Organometallics. 26:6042-6049
The ability of N-heterocyclic carbenes (NHCs) to participate in π-back-bonding interactions was evaluated in a range of transition metal complexes. Rh chloride complexes containing a systematic ser...
Publikováno v:
The Journal of Organic Chemistry. 72:9407-9417
A new class of 1,3-disubstituted-triazenes were synthesized by coupling functionalized benzimidazol-2-ylidenes, as their free N-heterocyclic carbenes or generated in situ from their respective benzimidazolium precursors, to various aryl azides in mod
Publikováno v:
Organic Letters. 8:1831-1834
[reaction: see text] New synthetic methodology to a variety of 1,2,4,5-tetraaminobenzenes and their corresponding benzobis(imidazolium) salts has been accomplished. Palladium-catalyzed coupling of various 1,2,4,5-tetrabromo- or 1,2,4,5-tetrachloroben