Intramolecular phosphine-directed hydroformylation. Application to the total synthesis of (+)-phyllanthocin
作者:Steven D. Burke、Jeffery E. Cobb
DOI:10.1016/s0040-4039(00)94241-2
日期:——
[(COD)RhOAc]2-catalyzed hydroformylation of 1d largely to the desired C(3) position. This “intramolecular hydroformylation” strategy substantially improves a key transformation in the totalsynthesis of (+)-phyllanthocin.
将配位膦残基[ m-(Ph 2 P)C 6 H 4 CO]临时掺入四环叶绿素前体1a中可将1d的[(COD)RhOAc] 2催化的加氢甲酰化直接转化为所需的C(3)位置。这种“分子内氢甲酰化”策略大大改善了(+)-花青素的总合成过程中的关键转化。