|Appears in Collections:||eTheses from Faculty of Natural Sciences legacy departments|
|Title:||Attempts to synthesize kainic acid|
|Author(s):||Strachan, Calum H.|
|Publisher:||University of Stirling|
|Abstract:||Attempts were made to synthesise a conformationally restricted analogue of kainic acid wherein the double bond was confined in a ring-system. The stratagem involved an intramolecular Diels-Alder reaction but could not be tested as the precursors to the cycloaddition reaction could not be prepared. Attempts were made to develop a general route to kainic acid and analogues by employing a 1,3-dipolar cycloaddition reaction between aziridines and olefins. Triazolines were used as a precursor to aziridines because of the ease of formation from alkyl azides and olefins. The required dipolar cycloaddition was found to occur but produced various side-products from the triazoline thermolysis. The subsequent Grignard reaction on the cycloaddition product gave problems as the compound epimerised under basic conditions and did not undergo reaction with methyl Grignard or methyl lithium. An attempt to prepare kainic acid and analogues by an intramolecular 1,3-dipolar cycloaddition or a 1,3-sigmatropic shift reaction failed when the basic precursors for the reaction could not be prepared.|
|Type:||Thesis or Dissertation|
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