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SYNTHESIS AND APPLICATION OF AZACYCLOALK-1-ENE-FUSED OXAZOL-3-IUM SALTS

Jiaxi Xu, Eugene V. Babaev
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Abstract


Synthesis and application of azacycloalk-1-enefused oxazol-3-ium salts are summarized. The microreview covers all synthetic methods for obtaining 6,7-dihydro-5H-pyrrolo[2,1-b]oxazol-4-ium and 5,6,7,8-tetrahydrooxazolo[3,2-a]pyridin-4-ium derivatives that have been classified in two distinct categories: cyclization leading to the formation of azacycloalk-1-ene ring and
cyclization leading to the formation of oxazole ring. Application of these azacycloalk-1-enefused oxazol-3-ium salts has been discussed.

Keywords


oxazol-3-ium; 5H-pyrrolo[2,1-b]oxazol-4-ium; oxazolo[3,2-a]pyridin-4-ium

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