Synthesis of the Epoxyquinol Dimer RKB-3564 D: Utilization of an Alkoxysilanol To Promote [4 + 4] Dimerization
作者:Chaomin Li、John A. Porco
DOI:10.1021/ja039543+
日期:2004.2.1
The synthesis of the epoxyquinol dimer RKB-3564 D (3) is reported, employing an alkoxysilanol protecting group to redirect the inherently favored [4 + 2] dimerization of 2H-pyran monomers to a [4 + 4] manifold. Preliminary mechanistic studies indicate that the [4 + 4] dimerization may occur through a stepwise, ionic process.