Directed Branched-Regioselective Hydroformylation of 2-Substituted Allylico-DPPB Esters
作者:Bernhard Breit、Christian U. Grünanger、Olivier Abillard
DOI:10.1002/ejoc.200700120
日期:2007.5
Branched-regioselective hydroformylation of allylic o-DPPB esters has been accomplished with mono- and disubstituted alkene functions in good to excellent yields and selectivities. Optimized reaction conditions allowed the reaction of even trisubstitued alkenic functions. These reactions occur as a result of a significant rate-accelerating effect exerted by the catalyst-directing o-DPPB group, as exemplified
烯丙基 o-DPPB 酯的支化区域选择性加氢甲酰化已经用单取代和双取代的烯烃官能团完成,收率和选择性都非常好。优化的反应条件允许甚至三取代的烯烃官能团反应。这些反应是催化剂导向的 o-DPPB 基团发挥显着加速作用的结果,例如香叶基和橙花基 o-DPPB 酯的高度位置、区域和非对映选择性加氢甲酰化。 (© Wiley -VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)