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Denmark, Scott E. Pham, Son Minh 2015-09-25T22:12:48Z 2015-09-25T22:12:48Z 10000-01-01 2002 2002 Kinetic studies using ReactIR and rapid injection NMR (RINMR) spectroscopy have confirmed the existence of dual mechanistic pathways involving either one or two phosphoramides. Determination of Arrhenius activation parameters revealed that aldol addition occurs through the reversible albeit unfavorable formation of an activated complex. Finally, natural abundance 13C NMR kinetic isotope effect (KIE) studies have determined aldolization to be rate limiting. Made available in DSpace on 2015-09-25T22:12:48Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3070414.pdf: 9940011 bytes, checksum: e6c693b70471b990bd9f2d94d19d7c79 (MD5) Previous issue date: 2002 Embargo set by: Seth Robbins for item 85369 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 336 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002. http://hdl.handle.net/2142/84088 (MiAaPQ)AAI3070414 eng Chemistry, Organic Lewis Base Catalyzed Enantioselective Aldol Additions: Preparative and Mechanistic Studies text Chemistry Chemistry University of Illinois at Urbana-Champaign Dissertation Ph.D.