ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Furan derivatives. LXXXVII. The synthesis and ultraviolet spectra of 5-(4-X-phenylsulfonyl)-2-furaldehydes and 2-cyano-3-[5-(4-X-phenylsulfonyl)-2-furyl]acrylonitriles

R. Kada and J. Kováč

Department of Organic Chemistry, Slovak Technical University, 880 37 Bratislava

Abstract:  5-(4-X-Phenylsulfonyl)-2-furaldehydes, obtained from alkaline salts of 4-X-substituted benzenesulfinic acids (X = H, CH₃, CH₃CONH, CI, Br, (CH₃)₂N) and 5-halide-2-furaldehydes in dimethylformamide, were reacted with malonic acid dinitrile under conditions of Knoevenagel condensation to yield the corresponding 2-cyano-3-[5-(4-X-phenylsulfonyl)-2-furyl]acrylonitriles. Ultraviolet spectra of the synthesized compounds are interpreted.

Full paper in Portable Document Format: 304a502.pdf

Chemical Papers 30 (4) 502–507 (1976)