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Amination reactions of aryl halides with nitrogen-containing reagents mediated by palladium/imidazolium salt systems.
- G. Grasa, M. S. Viciu, J. Huang, S. Nolan
- Chemistry, Medicine
- The Journal of organic chemistry
- 25 October 2001
Nucleophilic N-heterocyclic carbenes have been conveniently used as catalyst modifiers in amination reactions involving aryl chlorides, aryl bromides, and aryl iodides with various… Expand
Asymmetric hydrogenation of isobutyrophenone using a [(Diphosphine) RuCl2 (1,4-diamine)] catalyst.
- G. Grasa, A. Zanotti-Gerosa, J. Medlock, W. Hems
- Chemistry, Medicine
- Organic letters
- 15 March 2005
[reaction: see text] The use of three chiral 1,4-diamines in the [(diphosphine) RuCl(2) (diamine)] catalyst system is demonstrated in the hydrogenation of acetophenone. The use of a 1,4-diamine… Expand
N-Heterocyclic Carbenes as Versatile Nucleophilic Catalysts for Transesterification/Acylation Reactions.
- G. Grasa, R. M. Kissling, S. Nolan
- Chemistry
- 18 March 2003
N-heterocyclic carbenes as versatile nucleophilic catalysts for transesterification/acylation reactions.
- G. Grasa, R. M. Kissling, S. Nolan
- Chemistry, Medicine
- Organic letters
- 25 September 2002
[reaction: see text] Imidazol-2-ylidenes, a family of N-heterocyclic carbenes (NHC), are efficient catalysts in the transesterification between esters and alcohols. Low catalyst loadings of aryl- or… Expand
Efficient transesterification/acylation reactions mediated by N-heterocyclic carbene catalysts.
- G. Grasa, Tatyana Gueveli, Rohit Singh, S. Nolan
- Chemistry, Medicine
- The Journal of organic chemistry
- 8 March 2003
Imidazol-2-ylidenes, a family of N-heterocyclic carbenes (NHC), are efficient catalysts in the transesterification involving numerous esters and alcohols. Low catalyst loadings of aryl- or… Expand
Suzuki—miyaura cross-coupling reactions mediated by palladium/imidazolium salt systems.
- G. Grasa, M. S. Viciu, Jinkun Huang, C. Zhang, M. Trudell, S. Nolan
- Chemistry
- 7 June 2002
Nucleophilic N-heterocyclic carbenes (NHC) have been used as ancillary ligands in palladium-mediated Suzuki−Miyaura cross-coupling reactions involving aryl chlorides or aryl triflates with… Expand
Palladium/imidazolium salt catalyzed coupling of aryl halides with hypervalent organostannates.
[figure: see text] A Pd(OAc)2/imidazolium chloride system has been used to mediate the catalytic cross-coupling of aryl halides with organostannanes. The imidazolium salt IPr.HCl (IPr =… Expand
Synthesis and X-ray structure determination of highly active Pd(II), Pd(I), and Pd(0) complexes of di(tert-butyl)neopentylphosphine (DTBNpP) in the arylation of amines and ketones.
- Lensey L. Hill, Jason L Crowell, +11 authors C. Woltermann
- Chemistry, Medicine
- The Journal of organic chemistry
- 1 September 2010
The air-stable complex Pd(η(3)-allyl)(DTBNpP)Cl (DTBNpP = di(tert-butyl)neopentylphosphine) serves as a highly efficient precatalyst for the arylation of amines and enolates using aryl bromides and… Expand
alpha-arylation of ketones using highly active, air-stable (DtBPF)PdX2 (X = Cl, Br) catalysts.
- G. Grasa, T. Colacot
- Chemistry, Medicine
- Organic letters
- 22 November 2007
alpha-Arylation of various ketones with aryl chlorides and bromides using the well-defined and air-stable (DtBPF)PdX2 (X = Cl, Br) catalysts gave 80-100% yield of the coupled products under… Expand
[(Bisphosphine) Ru(II) diamine] complexes in asymmetric hydrogenation: expanding the scope of the diamine ligand.
- W. Hems, M. Groarke, Antonio Zanotti-Gerosa, G. Grasa
- Chemistry, Medicine
- Accounts of chemical research
- 19 June 2007
[(Bisphosphine) RuCl 2 (1,2-diamine)] complexes are powerful catalysts in the asymmetric hydrogenation of unfunctionalized ketones. We sought to expand the scope and applicability of these complexes… Expand