Graduate Theses, Dissertations, and Problem Reports

Author

Lin Ju

Date of Graduation

2015

Document Type

Thesis

Degree Type

MS

College

Eberly College of Arts and Sciences

Department

Chemistry

Committee Chair

Jessica Hoover

Committee Co-Chair

Jessica Hoover

Committee Member

Carsten Milsmann

Committee Member

Bjorn Soderberg

Abstract

Compared with the prefunctionalized substrates in traditional cross-coupling reactions, carboxylic acid derivatives are easier to handle and commercially available in a broad scope, making them ideal starting materials to build biaryl structures. Copper has been demonstrated to decarboxylate carboxylic acids. There are also several examples of copper-mediated oxidative coupling reactions with two nucleophilic components. However, the copper-mediated direct C-H trifluoromethylation and arylation of heteroarenes with trifluoroacetic acid and benzoic acids is still challenging.;This thesis is divided into three chapters. Chapter I and Chapter II will describe copper-mediated oxidative decarboxylative trifluoromethylation of C-H bonds, including heteroarenes and arenes bearing a directing group, with trifluoroacetic acid as the trifluoromethylating reagent. Chapter III will focus on the catalytic synthesis of biaryl structures by copper-catalyzed decarboxylative cross-coupling with benzoic acids and benzoxazoles.

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