Polyols as Templates for the Synthesis of Macrocycles from Boronic Acid Building Blocks
作者:Sonja Lüthje、Claudia Bornholdt、Ulrich Lüning
DOI:10.1002/ejoc.200500747
日期:2006.2
template, a bis(alkenyloxy)-substituted boronic acid 5 was bound twice, and the resulting bis(boronic acid ester) 6 was cyclized by ring-closing metathesis. The product bimacrocycle 7, or its hydrogenated analogue 8, are starting materials for subsequent reactions which give different endo-functionalized macrocycles as diboronic acids or diphenols. The bis(boronic acid) 12 proved to be a receptor for polyols
以降冰片烷四醇2为模板,双(烯氧基)取代的硼酸5结合两次,所得双(硼酸酯)6通过闭环复分解进行环化。产物双大环 7 或其氢化类似物 8 是后续反应的起始材料,这些反应产生不同的内功能化大环,如二硼酸或二酚。双(硼酸) 12 被证明是多元醇的受体。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)