RESEARCH ON SELF-ORGANIZATION AND ADAPTIVE STRATEGY OF THE INTERNET OF THINGS SENSOR NETWORKS


(R/S)-Ethyl 2-Acetoxy-4-phenyl-4H-chromene-3-carboxylate

A simple protocol for the preparation of O-acylated enol MEDI C PLUS W/CA form (R/S)-ethyl-2-acetoxy-4-phenyl-4H-chromene-3-carboxylate 5 was presented.The compound was characterized by 1H-, 13C-and DEPT135 NMR spectra, including {1H,1H} COSY, {1H,13C} HSQC, {1H,13C} HMBC, and 2D-NOESY spectra.The preferred regioselectivity for O-acylation of 3,4-d

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