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A New Late-Stage Lawesson's Cyclization Strategy Towards the Synthesis of Aryl 1,3,4-Thiadiazole-2-Carboxylate Esters
Schmidt, Michael Joseph

2013, BS, Kent State University, College of Arts and Sciences / Department of Chemistry.
1,3,4-Thiadiazole-2-carboxylate esters are attractive moieties for inclusion in potential ferroelectric liquid crystalline materials (strong later dipole, relatively small bend between C2 and C5, compact size, etc.). However, methods for preparing these materials (of which there are few) have proven difficult in the past due primarily to competition from decarboxylation reactions leading to large amounts of byproducts. Postponing the cyclization of appropriate 1,4,5-tricarbonyl precursors until the last step has proven effective, circumventing demanding experimental conditions and difficult purification processes. Three examples of liquid crystalline materials exhibiting wide SmC phases have been prepared using this method.
Paul Sampson, Dr. (Advisor)
Alexander Seed, Dr. (Advisor)
106 p.

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Schmidt, M. (2013). A New Late-Stage Lawesson's Cyclization Strategy Towards the Synthesis of Aryl 1,3,4-Thiadiazole-2-Carboxylate Esters. (Electronic Thesis or Dissertation). Retrieved from https://etd.ohiolink.edu/

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Schmidt, Michael. "A New Late-Stage Lawesson's Cyclization Strategy Towards the Synthesis of Aryl 1,3,4-Thiadiazole-2-Carboxylate Esters." Electronic Thesis or Dissertation. Kent State University, 2013. OhioLINK Electronic Theses and Dissertations Center. 24 May 2015.

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Schmidt, Michael "A New Late-Stage Lawesson's Cyclization Strategy Towards the Synthesis of Aryl 1,3,4-Thiadiazole-2-Carboxylate Esters." Electronic Thesis or Dissertation. Kent State University, 2013. https://etd.ohiolink.edu/

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