An investigation of the selective di-O-acylation with p-toluenesulfonyl (tosyl) chloride of the four D-pentono-, the eight D-hexono-and D-glycero-D-gulo-heptonolactone has been undertaken, and a number of 2,5-, 2,6- and 2,7-di-O-tosylated lactones have been prepared. Monotosylation of L-erythrono- and L-rhamnonolactone gave the corresponding 2-O-tosylates.
对四种D-pentono、八种D-hexono和D-glycero-D-gulo-heptonolactone进行选择性二-O-酰化的研究已开展,并已制备出多种2,5-、2,6-和2,7-二-O-托烯基化的内酯。对L-红
酮酸内酯和
L-鼠李糖内酯的单托烯基化反应得到了相应的2-O-托烯基化产物。