Synthesis of a New N-Diaminophosphoryl-N′-[(2S)-2-pyrrolidinylmethyl]thiourea as a Chiral Organocatalyst for the Stereoselective Michael Addition of Cyclohexanone to Nitrostyrenes and Chalcones - Application in Cascade Processes for the Synthesis of Polyc
作者:Carlos Cruz-Hernández、Eduardo Martínez-Martínez、Perla E. Hernández-González、Eusebio Juaristi
DOI:10.1002/ejoc.201801339
日期:2018.12.31
novel chiral thiourea containing a segment of privileged (2S)‐2‐pyrrolidinylmetan‐amine as well as a hydrophobic phosphoramide framework is described. The new organocatalyst exhibited good performance in asymmetric Michael additions, in a variety of systems including the formal [3+3] cyclization of cyclohexanone with arylidenepyruvates through a cascade process, which involves the asymmetric Michael
描述了一种新颖的手性硫脲的合成,该硫脲含有一个特权级的(2 S)-2-吡咯烷基二甲胺和疏水性磷酰胺骨架。新型有机催化剂在不对称迈克尔加成反应中表现出良好的性能,在多种系统中,包括通过级联过程与芳基丙酮酸戊酯对环己酮进行正式的[3 + 3]环化反应,该过程涉及不对称迈克尔加成反应/质子转移/非对映选择性醛醇缩合反应。