4-methoxy-2-methylphenyl 3-deoxy-2,4-dimethoxy-3-phthalimido-α-D-xylo-hex-5-enopyranoside 在
iodonium di(2,4,6-trimethylpyridine) perchlorate 作用下,
以
氘代氯仿 为溶剂,
反应 0.5h,
以34%的产率得到2-[(3S,4S,5R,6S)-2-[1-Iodo-meth-(E)-ylidene]-3,5-dimethoxy-6-(4-methoxy-2-methyl-phenoxy)-tetrahydro-pyran-4-yl]-isoindole-1,3-dione