Asymmetric Catalytic Enantio- and Diastereoselective Boron Conjugate Addition Reactions of α-Functionalized α,β-Unsaturated Carbonyl Substrates
作者:Jian-Bo Xie、Siqi Lin、Shuo Qiao、Guigen Li
DOI:10.1021/acs.orglett.6b01998
日期:2016.8.5
established for the asymmetric boron conjugate addition of B2pin2 onto α-functionalized (involving C, N, O, and Cl) α,β-unsaturated carbonyls under mild, neutral conditions involving Cu[(S)-(R)-ppfa]Cl, AgNTf2, and alcohols. The dual additives of AgNTf2 and alcohols were found to play crucial roles for achieving high catalytic activity and enantio- and diastereoselectivity (up to 98% ee and 70:1 dr).
作者:Vishal Srivastava、Pravin K. Singh、Sudhanshu Kanaujia、Praveen P. Singh
DOI:10.1039/c7nj03068a
日期:——
A mild and efficient one-pot visible light-induced method has been developed for the synthesis of amino alcohols. Amino alcohols are important structural elements that are frequently found in pharmaceutical agents and biologically active naturalproducts. The routine procedure in the drug discovery and development process to prepare and fully characterize amino alcohols makes them a drug candidate