银催化与有机催化相结合：一种对吡喃并吡唑进行对映选择性串联催化的方法。
Combining silver- and organocatalysis: an enantioselective sequential catalytic approach towards pyrano-annulated pyrazoles.
作者信息
Hack Daniel, Chauhan Pankaj, Deckers Kristina, Mizutani Yusuke, Raabe Gerhard, Enders Dieter
机构信息
Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
出版信息
Chem Commun (Camb). 2015 Feb 11;51(12):2266-9. doi: 10.1039/c4cc09495f.
Abstract
A one-pot asymmetric Michael addition/hydroalkoxylation sequence, catalyzed by a sequential catalytic system consisting of a squaramide and a silver salt, provides a new series of chiral pyrano-annulated pyrazole derivatives in excellent yields (up to 95%) and high enantioselectivities (up to 97% ee).
摘要
由方酰胺和银盐组成的顺序催化体系催化的一锅法不对称迈克尔加成/氢烷氧基化反应序列，以优异的产率（高达95%）和高对映选择性（高达97% ee）提供了一系列新的手性吡喃并吡唑衍生物。
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