Synthesis and antiinflammatory activity of 6-acylsubstituted benzo-1, 4-dioxanes and dihydrobenzopyrans

VK Daukshas, PG Gaidyalis, ÉB Udrenaite…

Index: Daukshas, V. K.; Gaidyalis, P. G.; Udrenaite, E. B.; Pyatrauskas, O. Yu.; Brukshtus, A. B. Pharmaceutical Chemistry Journal, 1985 , vol. 19, # 9 p. 611 - 614 Khimiko-Farmatsevticheskii Zhurnal, 1985 , vol. 19, # 9 p. 1069 - 1071

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Abstract

In the infrared, the carbonyl group of the ketone IVi absorbs at a higher frequency (1665 cm- i) than that of the corresponding chalcone IVh (1645 era-i), and in the UV spectrum, absorption bands are more displaced toward the long-wave region for the chalcone IVh, which has a conjugated chain, than for the ketone IVi. The corresponding derivatives of benzo-l, 4-dioxane behave similarly [3]. The long-wave absorptions in the UV spectra of ...