Presentation Title

Microwave Assisted Synthesis of Benzimidazoles From Aromatic Aldehydes

University

Shawnee State University

Major

Chemistry

Student Type

Undergraduate Student

Presentation Types

Oral Presentation

Keywords:

Benzimidazole, Analytical Chemistry, Microwave

Description

Benzimidazoles are an important class of nitrogen containing heterocycles that are found in many natural products, pharmaceuticals, and dyes. A number of benzimidazoles have been synthesized by condensing aromatic aldehydes with various diamines. Many of these compounds exhibit desirable optical properties such as those required for organic dyes, organic LED’s (OLED’s), and dye sensitized solar cells (DSSC’s). Several reports have also shown that such compounds may be useful as chemosensors, specifically as anion sensors. This research focused on developing a concise synthetic procedure using microwave reactor technology in order to efficiently produce highly conjugated benzimidazole systems so that their optical properties could be evaluated. This presentation will report on the progress of new compounds that have been synthesized by reacting ortho, meta, and para phtalaldehydes with various diamines using a CEM Microwave Reactor and an ammonium chloride catalyst. In addition, the subsequent UV–Vis and fluorescence spectroscopic studies of these compounds will be presented.

Faculty Sponsor Name

Daniel Finnen

Faculty Sponsor Title

Associate Professor of Chemistry

Faculty Sponsor Academic Department

Natural Sciences

Location

LIB 244

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Mar 28th, 9:00 AM Mar 28th, 9:50 AM

Microwave Assisted Synthesis of Benzimidazoles From Aromatic Aldehydes

LIB 244

Benzimidazoles are an important class of nitrogen containing heterocycles that are found in many natural products, pharmaceuticals, and dyes. A number of benzimidazoles have been synthesized by condensing aromatic aldehydes with various diamines. Many of these compounds exhibit desirable optical properties such as those required for organic dyes, organic LED’s (OLED’s), and dye sensitized solar cells (DSSC’s). Several reports have also shown that such compounds may be useful as chemosensors, specifically as anion sensors. This research focused on developing a concise synthetic procedure using microwave reactor technology in order to efficiently produce highly conjugated benzimidazole systems so that their optical properties could be evaluated. This presentation will report on the progress of new compounds that have been synthesized by reacting ortho, meta, and para phtalaldehydes with various diamines using a CEM Microwave Reactor and an ammonium chloride catalyst. In addition, the subsequent UV–Vis and fluorescence spectroscopic studies of these compounds will be presented.