Quinetta D. Shelby

Assistant Professor of Chemistry


 
 
 
DePaul University


Department of Chemistry
 

O'Connell 380
1036 West Belden Avenue
Chicago, IL 60614-3251

Phone:
773-325-7402 (office)
773-325-7410 (lab, OC 446)

Fax: 773-325-7421

Email: qshelby@depaul.edu 

Shelby Research Group

Autumn 2008 Office Hours:

By appointment only





 

Biography:

Dr. Shelby received her B.S. degree from the University of Chicago and Ph.D. degree from the University of Illinois at Urbana-Champaign.  She was awarded a National Institutes of Health Research Supplement for Minority Individuals in Postdoctoral Training, and conducted postdoctoral research at Yale University.  She joined the faculty at DePaul University in 2004. 

Research Interest:

Allylation of aldehydes using allylsilane substrates is important because the reaction forms homoallylic alcohols, which are useful intermediates in the synthesis of natural products.  Two key challenges inherent in this reaction are low reactivity of allylsilanes and lack of stereoselectivity in product formation.  Our research focusses on using chiral Pd catalysts containing an electronically anionic bidentate ligand to activate the reaction of allylsilanes with aldehydes and to promote the asymmetric synthesis of the homoallylic alcohol products.  These ligands allow us to modify easily the steric, electronic, and chiral characters of the phosphine substituents to study their effects on activation and selectivity.  Our long-term objective is to contribute significantly to the fundamental understanding of principles that will improve catalytic systems for synthetic reactions.

Selected Publications:
  • Shelby, Q. D.; Lin, W.; Girolami*, G. S. “Metal-to-Metal Silyl Migration and Silicon-Carbon Bond Cleavage/Re-formation Processes in the Methylene/Silyl Complexes Cp*2Ru2(m-CH2)(SiR3)(m-Cl),” Organometallics1999, 18, 1904-1910.
  •  Shelby, Q. D.; Girolami*, G. S. “Synthesis, Dynamic Behavior, and X-ray Crystal Structure of [Li(tmed)]3[WH(C2H4)4],” Organometallics1999, 18, 2297-2299.
  •  Shelby, Q.; Kataoka, N.; Mann, G.; Hartwig, J. “Unusual in Situ Ligand Modification to Generate a Catalyst for Room Temperature Aromatic C-O Bond Formation,” J. Am. Chem. Soc. 2000, 122, 10718-10719.
  • Kataoka, N.; Shelby, Q.; Stambuli, J. P.; Hartwig, J. F. "Air Stable, Sterically Hindered Ferrocenyl Dialkylphosphines for Palladium-Catalyzed C-C, C-N, and C-O Bond-Forming Cross-Couplings" J. Org. Chem. 2002, 67, 5553.
  • Mann, G.; Shelby, Q.; Roy, A. H.; Hartwig, J. F. "Electronic and Steric Effects on the Reductive Elimination of Diaryl Ethers from Palladium(II)" Organometallics 2003, 22, 2775-2789.   
  • Spencer, M. D.; Shelby, Q. D.; Girolami, G. S. "Titanium-Catalyzed Dehydrocoupling of Silanes: Direct Conversion of Primary Monosilanes to Titanium(0) Oligosilane Complexes with Agostic α-Si-H···Ti Interactions"  J. Am. Chem. Soc. 2007, 129, 1860-1861.
  • Morse, P. M.; Shelby, Q. D.; Kim, D. Y.; Girolami, G. S. "Ethylene Complexes of the Early Transition Metals: Crystal Structures of [HfEt4(C2H4)2-] and the Negative-Oxidation-State Species [TaHEt(C2H4)33-] and WH(C2H4)43-]. Organometallics, 2008, 27, 984-993.
  • Shelby, Q. D. "1,2,3,4,5-Pentaphenyl-1-(di-tert-butyl-phosphino)ferrocene" Electronic Encyclopedia of Reagents for Organic Synthesis (eEROS), submitted.

 
Last Update: September 9, 2008
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