Synthesis of Highly Functionalized Chiral 3,3′-Disubstituted Oxindoles via an Organocatalytic Enantioselective Michael Addition of Nitroalkanes to Indolylidenecyanoacetates
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An efficient bifunctional cinchona alkaloid derived thiourea-promoted enantioselective conjugate addition of nitroalkanes to indolylidenecyanoacetates has been developed under neat conditions. The process leads to synthetically interesting densely functionalized 3,3′-disubstituted oxindoles with creation of up to three stereogenic centers.
创建时间：
2016-02-22
