(3aS,4R,7aR)-6-bromo-2,2,2',2'-tetramethyl-3aH-spiro[benzo[d][1,3]dioxole-4,4'-[1,3]dioxolan]-7(7aH)-one 、
(t-butyldiphenylsilyloxymethyl)tributylstannane 在
bis-triphenylphosphine-palladium(II) chloride 作用下,
以
1,4-二氧六环 为溶剂,
以64%的产率得到(3aS,4R,7aR)-6-(((tert-butyldiphenylsilyl)oxy)methyl)-2,2,2',2'-tetramethyl-3aH-spiro[benzo[d][1,3]dioxole-4,4'-[1,3]dioxolan]-7(7aH)-one