Development of Guanidine-Bisurea Bifunctional Organocatalysts with a Chiral Pyrrolidine Moiety and Application to α-Hydroxylation of Tetralone-Derived β-Keto Esters
作者:Minami Odagi、Kan Takayama、Makoto Sato、Masahiro Yamanaka、Kazuo Nagasawa
DOI:10.3390/molecules200712590
日期:——
guanidine-bisurea bifunctional organocatalysts 5 bearing a chiral pyrrolidine moiety on guanidine were designed with the guidance of DFT calculations. The resulting organocatalysts 5 were examined for α-hydroxylation of tetralone-derived β-keto esters, and good selectivity was obtained with 5j bearing a methoxymethyl ether-containing chiral pyrrolidine moiety.
在DFT计算的指导下,设计了在胍上带有手性吡咯烷部分的新型胍-双脲双功能有机催化剂5。检查得到的有机催化剂5的四氢萘酮衍生的β-酮酯的α-羟基化,并且用带有含甲氧基甲基醚的手性吡咯烷部分的5j获得了良好的选择性。