期刊
TETRAHEDRON LETTERS
卷 41, 期 27, 页码 5219-5223出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(00)00819-4
关键词
crown ethers; macrocycles; molecular recognition; thioureas
Due to our interest in the functionalization of dibenzo-30-crown-10 moiety, a regioselectively dinitro-derived congener 1 was conveniently synthesized. The availability of the compound as a building block to develop new molecular systems allowed us to prepare a multi-site receptor 3, desirable for cooperative complexation of cationic and anionic species in an induced fit fashion. Indeed, K+ accommodated in the crowned cavity did not only tune the conformation to bind anions but also associated in the anion binding efficiently. (C) 2000 Elsevier Science Ltd. All rights reserved.
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