Catalytic asymmetric bromolactonization reactions using (DHQD)2PHAL-benzoic acid combinations
作者:Alan Armstrong、D. Christopher Braddock、Alexander X. Jones、Stacy Clark
DOI:10.1016/j.tetlet.2013.10.043
日期:2013.12
Catalytic (DHQD)2PHAL as modified by added benzoic acid, is an off-the-shelf catalyst-additive combination for effecting catalytic asymmetric bromolactonization reactions. This combination delivers bromolactones with asymmetric induction at a comparable level to bespoke catalysts previously optimized for particular substrate classes.
由添加的苯甲酸改性的催化(DHQD)2 PHAL是用于实现催化不对称溴化反应的现成催化剂-添加剂组合。这种组合可提供与以前为特定底物类型优化的定制催化剂相当的不对称诱导溴内酯。