Abstract:The compound 1,2-O-propylidene-3-O-(2-methyl-2-penetenacyl)-5-O-benzoyl-D-xylofuranose was synthesized from xylose, benzoyl chloride and 2-methyl-2-pentenoicacid with 4-DMAP as catalyst and DCC as dehydration reagent. Its structure was confirmed by IR, 1H NMR, HRMS spectra. The pyrolysis of the precursor and the application of the compound in blended cigarette flavoring were studied as well. The results show that: (1) The target compound can be synthetized in simpler operation and with higher yield. (2) Temperature has a great influence on the types and contents of pyrolysis of the compound; with the rise of pyrolytic temperature the cracking degree becomes more and more severe. The contents of furan, myrcene, 2-methyl-2-pentenoicacid and so on are higher in each temperature section. (3) When the dosage of the synthesized compound falls in the range of 0.004%~0.008%, the compound is in harmony with tobacco, and can improve aroma quality, enhance aroma quantity, reduce irritancy and improve aftertaste of cigarette smoke. Meanwhile a slight difference shows between tobacco from different areas in the requirement of the optimum additive amount of this compound.