Gopalan Publications

  • 3,2-Hydroxypyridinone (3,2-HOPO) Vinyl Sulfonamide and Acrylamide Linkers: Aza-Michael Addition Reactions and Preparation of Poly-HOPO Chelators Martinez, G.; Arumugam, J.; Jacobs, H. K.; Gopalan, A. S. Tetrahedron Lett. (in press).
  • Preparation of Bifunctional Isocyanate Hydroxamate Linkers: Synthesis of Carbamate and Urea Tethered Polyhydroxamic Acid Chelators Fernando, R.; Shirley, J. M.; Torres, E.; Jacobs, H. K.; Gopalan, A. S. Tetrahedron Lett. 2012, 53, 6367-6371.
  • Synthetic Approaches to Mixed Ligand Chelators on T-Butylphenol-Formaldehyde Oligomer (PFO) Platforms Young, J. A.; Karmakar, S.; Jacobs, H. K.; Gopalan, A. S. Tetrahedron, 2012, 68, 10030-10039.
  • A New Approach to Fused Furan Ring Systems and Benzofurans: Intramolecular Cyclization Reactions of Unsaturated Acyloxy Sulfone Derivatives Liu, Y.; Jacobs, H. K.; Gopalan, A. S. Tetrahedron Lett,. 2011, 52, 2935-2939.

 

  • A New Approach to Cyclic Hydroxamic Acids: Intramolecular Cyclization of N-Benzyloxy Carbamates with Carbon Nucleophiles Liu, Y.; Jacobs, H. K.; Gopalan, A. S. Tetrahedron, 2011, 67, 2206-2214. PMCID: 3076681.

 

  • Chiral Oxazolidinones as Electrophiles: Intramolecular Cyclization Reactions with Carbanions and Preparation of Functionalized Lactams Gibson, S.; Jacobs, H. K.; Gopalan, A. S. Tetrahedron Lett., 2011 52, 887-890. PMCID: 3084007.

 

  • New Synthetic Approach for the Incorporation of 3,2-Hydroxypyridinone (HOPO) Ligands: Synthesis of Structurally Diverse Poly HOPO Chelators Arumugam, J.; Brown, H. A.; Jacobs, H. K.; Gopalan, A. S. Synthesis, 2011, 57-64.

 

  • Concurrent Esterification and N-Acetylation of Amino Acids with Orthoesters: A Useful Reaction with interesting Mechanistic Implications Gibson, S.; Romero, D.; Jacobs, H. K.; Gopalan, A. S. Tetrahedron Lett., 2010, 51, 6737-6740. PMCID: 3030124.

 

  • Synthesis and Iron Sequestration Equilibria of Novel Exocyclic 3-Hydroxy-2-Pyridinone Donor Group Siderophore Mimics Harrington, J. M.; Chittamuru, S.; Dhungana, S.; Jacobs, H. K.; Gopalan, A. S.; Crumbliss, A. L. Inorganic Chemistry, 2010, 49, 8208-8221.
  • Reactions of N-Benzyloxycarbamate Derivatives with Stabilized Carbon Nucleophiles-A New Synthetic Approach to Polyhydroxamic Acids and Other Hydroxamate Containing Mixed Ligand Systems Liu, Y.; Jacobs, H. K.; Gopalan, A. S. Journal of Organic Chemistry, 2009, 74, 782-788.

 

  • Synthetic Methodology for the Preparation of N-hydroxysulfamides Devanathan, K.; Bell, J.A.; Wilkins, P.C.; Jacobs, H.K.; Gopalan, A.S. Tetrahedron Lett., 2007, 48, 8029-8033

 

  • New Methodology for the Preparation of 3-hydroxy-2-pyridinone (3,2-HOPO) Chelators 2. Reactions of Alcohols, Phenols and Thiols with a Novel Electrophilic 3,2-HOPO Precursor Chittamuru, S.; Lambert, T.N.; Martinez, G.; Jacobs, H.K.; Gopalan, A.S. Tetrahedron Lett., 2007, 48, 567-571
  • Selective Fluorescence Detection of Divlant and Trivalent Metal Ions with Functionalized Lipid Membranes Pincus, J.L.; Jin, C.; Huang, W.; Jacobs, H.K.; Gopalan, A.S.; Song, Y.; Shelnutt, J.A.; Sasaki, D.Y. J. Mater. Chem., 2005, 15, 2938-45
  • Mechanistic variations in the oxidation of Piloty’s acid by metal complexes Wilkins, P. C.; Jacobs, H. K.; Johnson, M. D.; Gopalan, A. S. Inorganic Chemistry, 2004, 43, 7877-7881
  • Synthesis of ether-linked fluorocarbon surfactants and their aggregational properties in organic solvents Huang, W.; Jin, C.; Derzon, D. K.; Huber, T. A.; Last, J. A.; Provencio, P. P.; Gopalan, A. S.; Dugger, M.; Sasaki, D. Y. Journal of Colloids and Interface Science, 2004, 272, 457-464.
  • Synthesis of symmetrical methylenebis(alkyl hydrogen phosphonates) by selective cleavage of methylenebis(dialkyl phosphonates) with morpholine Gantla, V. R.; Jacobs, H.; Gopalan, A. S.; Barrans Jr., R. E.; Dietz, M. L.; Stepinski, D.; Herlinger, A. W. Synthetic Communications, 2004, 34(2), 331-344.
  • Supercritical Carbon Dioxide-Separations and Processes Gopalan, A.S.; Wai, C. M.; Jacobs, H.K., Eds. ACS Symposium Series (Volume 860), American Chemical Society, Washington, DC; 2003.
  • “An Introduction to Separations and Processes Using Supercritical Carbon Dioxide” in Supercritical Carbon Dioxide-Separations and Processes” Gopalan, A.S.; Wai, C. M.; Jacobs, H.K., Eds. ACS Symposium Series (Volume 860), American Chemical Society, Washington, DC; 2003, pp. 2–8.
  • Synthesis of lactams and other nitrogen heterocycles by intramolecular cyclizations of carbamates and acyl derivatives of aminosulfones Hernandez, N.M.; Sedano, M.J.; Jacobs, H.K.; Gopalan*, A.S. Tetrahedron Letters, 2003, 44, 4035-4039.
  • Synthesis and metal ion complexation properties of a novel polyethyleneimine N-methylhydroxamic acid water soluble polymer Bisset, W.; Jacobs, H.K.; Koshti, N.; Stark, P.; Gopalan*, A.S. Reactive and Functional Polymers, 2003, 55, 109-119.
  • Convenient synthetic methods for the preparation of N-fluoroalkylhydroxamic acids Koshti, N.; Gantla, V. R.; Jacobs, H.K, Gopalan, A.S. Synthetic Commun., 2002, 32/24, 3779-3790.
  • New methodology for the preparation of 3-hydroxy-2-pyridinone (3,2-HOPO) chelators – Reaction of amines with a novel electrophilic 3,2-HOPO precursor Lambert, T. N.; Chittamuru, S.; Jacobs, H. K.; Gopalan, A. S., Jin, C. Tetrahedron Letters, 2002, 43/41, 7379-7383.
  • Intramolecular cyclization reactions of carbonyl derivatives of hydroxysulfone Jacobs, H.; Cervantes-Lee, F.; Gopalan, A.S. Tetrahedron, 2002, 58/19, 3737-3746.
  • Chiral non-racemic dihydroxysulfones via hydrolytic kinetic resolutions-synthesis of oxacyclic ring systems using intramolecular acylation strategies Jin, C.Y.; Ramirez, R.D.; Gopalan, A.S. Tetrahedron Lett., 2001, 4747-4750.
  • New Intramolecular alkylation and Michael addition reactions of hydroxysulfone derivatives- Stereoselective preparation of functionalized cyclic ethers Jin, C.; Jacobs, H.; Gopalan, A.S. Tetrahedron Lett., 2000, 41/50, 9753-9757.
  • Metal Ion Complexation and Extraction Behavior of Some Acyclic Analogs of tert-Butyl-Calix[4]arene Hydroxamate Extractants in Calixarenes for Separations Lambert, T. N.; Tallant, M. D.; Jarvinen, G. D.; Gopalan, A. S. ACS Symposium Series (Volume 757), American Chemical Society, Washington, DC; 2000, pp 208-222. Lumetta G., Rogers, R. and Gopalan, A.