The benzylidene groups of the di-O,O-benzylidene derivative of D-xylose diethyl dithioacetal have been located at the 2,4:3,5 positions, and not at the 2,3:4,5 positions suggested by Zinner, Rembarz, Linke, Ulbricht. Partial hydrolysis yielded the 2,4-O-benzylidene compound, from which 3-O-β-D-xylopyranosyl-D-xylose (rhodymenabiose) was prepared.
D-木糖二乙基二硫缩醛的二-O,O-亚苄基衍生物中的亚苄基基团位于2,4:3,5的位置,而不是Zinner、Rembarz、Linke、Ulbricht提出的2,3:4,5的位置。部分水解得到了2,4-O-亚苄基化合物,从中制备了3-O-β-D-木吡喃糖基-D-木糖(rhodymenabiose)。