Synthesis of a novel ionic liquid for HPLC studies and characterization of novel ionic liquids

CHED 416

Donna L Quach, dquach@vandals.uidaho.edu1, Greg Donald2, A. Björn Carle, carleab@uc.edu2, and Apryll M. Stalcup, stalcuam@email.uc.edu2. (1) University of Idaho, MSC# 2325, 1080 W 6th St, Moscow, ID 83843, (2) Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221
The 5 Oxo 5,6,7,8-tetrahydroimidazo [1,5-c] pyrimidine 7 carboxylic methyl ester (NPH) was synthesized from L-histidine methyl ester dihydrochloride and carbonyldiimidazole. The NPH was transformed into a model ionic liquid to investigate ring stability. Additional unique zwitterionic ionic liquids were characterized by obtaining melting point, IR, and NMR. The melting points measured were considerably higher than typical ionic liquids. The relatively high melting points were attributed to intermolecular electrostatic and hydrogen bonding interactions.
 

Undergraduate Research Poster Session: Organic Chemistry
11:00 AM-1:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster

Division of Chemical Education

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008