A practical synthesis of benzocrown ethers under phase-transfer catalysis conditions

T Bogaschenko, S Basok, C Kulygina, A Lyapunov…

文献索引：Bogaschenko, Tatyana; Basok, Stepan; Kulygina, Catherine; Lyapunov, Alexander; Lukyanenko, Nikolay Synthesis, 2002 , # 15 p. 2266 - 2270

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被引用次数: 25

摘要

While methodologies for the construction of crown ethers continue to generate considerable interest in synthetic chemistry, their synthesis is often inefficient, [3] as cyclization is always accompanied by side process of polycondensation. This means that macrocyclization reactions had to be fast in order to maintain a very low concentration of reactants. Among the general strategies for ring closure, the high dilution principle, [13] the template method [3] and the cesium effect [14] ...