1,8-diazafluorenone and related compound
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Ronald Grigg; Theeravat Mongkolaussavaratana; C. Anthony Pounds; Sasikala Sivagn
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Article
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1990
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Elsevier Science
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French
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Diazafluorenone (DFO) reacts with a-amino acids and their esters via imine formation to give decarboxylated azomethine ylides and ester substituted azomethine ylides respectively. In the presence of N-methylmaleimide these azomethine ylides undergo stereospecific cycloaddition via endotransition st