One-Step Synthesis of C2v-Symmetric Resorcin[4]arene Tetraethers
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The three-component reaction between a resorcinol, 1,3-dimethoxybenzene, and an alkyl aldehyde (R = C1–C11) along with BF3·OEt2 affords a C2v-symmetric resorcin[4]arene tetraether in one step; in most cases, the single isomer can be precipitated from the reaction mixture in moderate to excellent yields (up to 89%). The reaction is tolerant of 2-substituted resorcinols (R′ = OH, Cl, Br, Me), allowing a third type of functionality to be regioselectively incorporated during the macrocyclization.
创建时间：
2020-03-03
