(3aR,5aR,9aR,9bR)-4-Allyl-2,2,8,8-tetramethyl-hexahydro-[1,3]dioxolo[4',5':4,5]pyrano[3,2-d][1,3]dioxine 在
cyclooctadiene-bis(methyldiphenylphosphine)-iridium hexafluorophosphate 作用下,
以
四氢呋喃 为溶剂,
反应 24.0h,
以88%的产率得到(1(1')Z)-2,3:4,6-di-O-isopropylidene-1-deoxy-1-propylidene-D-mannopyranose