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2,5-Disubstituted furan derivatives. II. Preparation and infrared spectra of the esters of 5-thiocyanatomethylpyromucic acid

A. Jurášek, Š. Kováč, and J. Kováč

Slovak Technical University, Bratislava

Abstract: By the reaction of NH₄CNS on alkyl esters of 5-chloromethylpyromucic acid, 11 new alkyl esters of 5-thiocyanatomethylpyromucic acid were prepd.: Me, Et, Pr, iso-Pr, Bu. iso-Bu, Am, iso-Am, n-hexyl, n-octyl, and n-decyl, m. 94.5-5.5°, 32-3°, 38-9°, 23-5°, 36-8°, 25-6°, 41-2° 25-6°, - (liquid, n20D 1.5148), 38-9.5°, and 43-5°, resp. The yields were 66.1-70.0% except I (85.2%). Spectrophotometric data were given in the region 2300-670 cm^-1 The vibration frequencies of C.sbd.O.sbd.C ester groups and C.sbd.O.sbd.C and C.sbd.H furan bonds were tabulated and the infrared spectra given.

Full paper in Portable Document Format: 189a682.pdf (in Slovak)

Chemical Papers 18 (9) 682–687 (1964)