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American Chemical Society
New York Section, Inc.
Department of Chemistry
St. John's University
8000 Utopia Parkway
Jamaica, NY 11439
Phone 516-883-7510
Fax 516-883-4003
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LONG ISLAND SUBSECTION
Students are encouraged to attend.
Hofstra University
Breslin Hall Room 211
(Please note that this is a different room than past seminars at Hofstra)
Directions
Social: 6:00 pm Seminar: 6:30 PM
Cost: Seminar is free and open to all
Dinner: Following at a nearby restaurant ($25)
Upcoming Meetings
February 9, 2012 Raja Krishnaswami, College of Staten Island - City University of New YorkProtein Polymer Hybrids and Curcumin Derivatives for Biomedical Applications Bioconjugates with proteins is a multibillion dollar industry. The current technology of producing polymer bioconjugates is limited to a few monomers; the number of dyes/drugs that can be conjugated per protein without loss of bioactivity is limited. A general synthetic methodology to produce a range of living copolymer protein conjugates with an amplified loading of dyes/drug will be presented. Over 7500 research papers and 18 clinical trials support the potential of Curcumin (the active ingredient in the spice Turmeric) to treat a range of pathological conditions. Curcumin is poorly absorbed by the body thereby severely limiting its potential as a drug candidate. A comprehensive strategy towards drug candidates with enhanced bioactivity based on Curcumin will also be presented. Before joining CSI in 1995, Dr. Raja was a Skaggs Postdoctoral Fellow with Dr. M.G. Finn at The Scripps Research Institute, and Principal Scientist in the Biopharmaceutical Development Division of Dynavax Technologies. Professor Raja's interests include the development of protein based drugs, bioconjugates, biomaterials and green drug development. |
March 8, 2012 Julie Pigza, Queensborough Community College - City University of New YorkMethodology Development using Oxyallyl Silanes as Homoenolate Equivalents The development of new methodology is proposed in which oxyallyl silanes will act as homoenolate equivalents in the addition to various electrophiles. Unlike standard allylation, oxyallyl silane addition furnishes an olefin with an increased oxidation state as a vinyl ether functional group. This precludes the use of traditional methods for functionalization of an alkene such as hydroboration-oxidation which can be difficult when the compound contains a nitrogen or when the olefin is near a sterically hindered position. The electrophiles of interest include vinylogous amides and phenols and are generated in the presence of an oxidant. The products of oxyallyl silane addition can then be converted to small ring systems found within natural products that are of interest to the synthetic community and are often biologically active. The synthesis of oxyallyl silanes will be discussed as well as some initial findings in the addition to electrophiles.  Dr. Julie Pigza did her undergraduate work at Allegheny College in Meadville, PA where she majored in chemistry and graduated magna cum laude. She then received her Ph.D. from Indiana University under the mentorship of Dr. Jeffrey Johnston working in the area of alkaloid total synthesis. From there she went on to do postdoctoral research at the University of California, San Diego and worked with Dr. Tadeusz Molinski on the synthesis of fluorine-containing amino acids and marine natural product synthesis. Dr. Pigza is currently in her second year as an Assistant Professor at Queensborough Community College where she recently received an American Chemical Society Petroleum Research Fund grant to pursue research with undergraduate students. |
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