2026-09-18T19:36:28Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/84398 2023-07-11 col_2142_5131 col_2142_14789 com_2142_5130 com_2142_14788 com_2142_8903

Zimmerman, Steven C. Kolotuchin, Sergei Valentinovich 2015-09-25T22:14:17Z 2015-09-25T22:14:17Z 10000-01-01 1998 1998 Part II. In Part II, the design, synthesis and aggregation of pyrimido(4,5-b) (1,8) -naphthyridine-3H-4-one (1) in solution is reported. The design of self-complementary monomer 1 features a DDA and AAD motif, a low-generation dendrimer which provides suitable solubility in nonpolar organic solvents, and a 2-aminoethyl group which directs the self-assembly process of 1. The synthesis of 1 was accomplished from chloronaphthyridine 6 by a precedented nucleophilic cyclization with N-ethyl guanidine. It was found that 1 forms a hydrogen-bonded aggregate in nonpolar organic solvents, as well as in more competitive solvents such as THF and 10% (v/v) DMSO/chloroform. The results of size exclusion chromatography (SEC) with polystyrene standards, as well as comparisons with covalent dendritic control compounds 11 and 23, suggest that the aggregate is a hexamer. Made available in DSpace on 2015-09-25T22:14:17Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9834701.pdf: 6777921 bytes, checksum: 009d1b1f1aae0b585954f53f4f10a824 (MD5) Previous issue date: 1998 Embargo set by: Seth Robbins for item 85679 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 140 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998. http://hdl.handle.net/2142/84398 (MiAaPQ)AAI9834701 eng Chemistry, Organic Part I: Crystal Engineering Using Trimesic Acid Analogs. Part II: An Extremely Stable Hydrogen-Bonded Hexamer text Chemistry Chemistry University of Illinois at Urbana-Champaign Dissertation Ph.D.