dimethyltitanocene 、 (3R,4S,5R,6R)-2-oxo-6-((pivaloyloxy)methyl)tetrahydro-2H-pyran-3,4,5-triyl tris(2,2-dimethylpropanoate) 70.0 ℃
、275.8 kPa
条件下,
以50%的产率得到(3R,4S,5R,6R)-2-methylene-6-((pivaloyloxy)methyl)tetrahydro-2H-pyran-3,4,5-triyl tris(2,2-dimethylpropanoate)