Efficient Asymmetric Synthesis of P-Chiral Phosphine Oxides via Properly Designed and Activated Benzoxazaphosphinine-2-oxide Agents

被引:135
|
作者
Han, Zhengxu S. [1 ]
Goyal, Navneet [1 ]
Herbage, Melissa A. [1 ]
Sieber, Joshua D. [1 ]
Qu, Bo [1 ]
Xu, Yibo [1 ]
Li, Zhibin [1 ]
Reeves, Jonathan T. [1 ]
Desrosiers, Jean-Nicolas [1 ]
Ma, Shengli [1 ]
Grinberg, Nelu [1 ]
Lee, Heewon [1 ]
Mangunuru, Hari P. R. [1 ]
Zhang, Yongda [1 ]
Krishnamurthy, Dhileep [1 ]
Lu, Bruce Z. [1 ]
Song, Jinhua J. [1 ]
Wang, Guijun [1 ]
Senanayake, Chris H. [1 ]
机构
[1] Boehringer Ingelheim Pharmaceut Inc, Dept Chem Dev, Ridgefield, CT 06877 USA
关键词
ENANTIOSELECTIVE SYNTHESIS; STEREOGENIC PHOSPHORUS; KINETIC RESOLUTION; LIGANDS; DEPROTONATION; HYDROGENATION; BORANE; LIPASE; ROUTE;
D O I
10.1021/ja312352p
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A general, efficient, and highly diastereoselective method for the synthesis of structurally and sterically diverse P-chiral phosphine oxides was developed. The method relies on sequential nucleophilic substitution on the versatile chiral phosphinyl transfer agent 1,3,2-benzoxazaphosphinine-2-oxide, which features enhanced and differentiated P N and P-O bond reactivity toward nucleophiles. The reactivities of both bonds are fine-tuned to allow cleavage to occur even with sterically hindered nucleophiles under mild conditions.
引用
收藏
页码:2474 / 2477
页数:4
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