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Department of Chemistry, King Abd laziz University, Jeddah, Saudi Arabia Manuscript received 22 August 1984, accepted 11 September 1985 Carboxylates1react rapidly and smoothly with 3-unsubstituted isoxazolium salts under very mild conditions to yield enol esters. In this paper we report some reactions of N-ethylnaphth (1,2-d) isoxazolium cation with acetate ion and some nitrogen blocked amino acids to give enol esters. These reactions exemplify a process for converting a carboxylate group into a reactive ester group by a very rapid and smooth reaction occurring under conditions of exceptional mildness. |
