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By the reaction of furan-2-carboxylic acids and furfural with diazonium salts  1a-j  the arylfuran-2-carboxylic acids  4a-e  and 5-arylfuran-2-carbaldehydes  5a-f  were synthesized. Acids  4a-e  were transformed into appropriated acylchlorides  6a-e  and were used for preparation of 4-(5-aryl-2-furoyl)morpholines  7a-e . 4-[(5-Aryl-2-furyl)carbonothioyl]morpholines  8a-f  were prepared from aldehydes  5a-f  by using Willgerodt-Kindler reaction. The structures of the obtained compounds were confirmed by  1 H NMR spectroscopy and elemental analysis. All these new compounds gave spectroscopic data in accordance with the proposed structures. The antimicrobial activities of synthesized compounds  7a-e  and  8a-f  were investigated and the compounds with high activity against    C.   neoformans    ATCC  208821  were identified.

Synthesis and antimicrobial activity of 4-(5-ARYL-2-FUROYL)morpholines and 4-[(5-ARYL-2-FURYL)carbonothioyl] morpholines