The first enantiopure 4,4â²-bipyridyls, 6, 8, and 9 have been prepared in four or five steps via bacterial dioxygenase-catalysed cis-dihydroxylation of 4-chloroquinoline1 and CâC coupling; ligands 6 and 9 are found to be effective building blocks for the preparation of chiral metalâorganic frameworks as demonstrated with the rational synthesis of two pillared-grid structures [Zn2(fumarate)2(L)], which exhibit interesting structural and dynamic aspects.
通过细菌二氧酶催化的
4-氯喹啉顺式二羟基化1 和 CâC 偶联,经过四到五个步骤制备出了首批对映纯的 4,4â²-双
吡啶基 6、8 和 9;
配体 6 和 9 被发现是制备手性
金属有机框架的有效构件,两个柱状网格结构 [Zn2(
富马酸)2(L)]的合理合成证明了这一点,它们展现出了有趣的结构和动态特性。