作者:Lin, Yao、Wen, Wei、Liu, Jian-Hua、Zhu, Fang、Li, Chao-Xing、Wu, Zhu-Lian、Cai, Tian、Liu, Chen-Jiang、Guo, Qi-Xiang
DOI:10.1021/acs.orglett.4c02840
日期:——
A highly efficient, atom-economical α-allylation reaction of NH2-unprotected amino acid esters and alkynes is achieved by chiral aldehyde/palladium combined catalysis. A diverse range of α,α-disubstituted nonproteinogenic α-amino acid esters are produced in 31–92% yields and 84–97% ee values. The allylation products are utilized for the synthesis of drug molecule BMS561392 and other chiral molecules
通过手性醛/钯联合催化,实现了NH 2 -未保护的氨基酸酯和炔烃的高效、原子经济的α-烯丙基化反应。生产多种 α,α-二取代非蛋白原 α-氨基酸酯,产率 31-92%,ee 值 84-97%。烯丙基化产物用于合成药物分子BMS561392和其他具有复杂结构的手性分子。机理研究表明,该反应通过手性醛/钯介导的三重级联催化循环进行。