The effects of alkali metal cations on product distributions in cucurbit[n]uril synthesis
The effects of alkali metal cations on product distributions in cucurbit[n]uril synthesis
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DOI：
10.1023/a:1021295626589
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发表时间：
2002-08-01
影响因子：
2.3
通讯作者：
Arnold, AP
中科院分区：
文献类型：
--
作者：
Day, AI;Blanch, RJ;Arnold, AP
碱金属阳离子在从预形成的低聚物前体或直接从甘脲和甲醛合成葫芦[n]脲Q[n]（n = 5-8）中充当模板。Q[5]已被合成和分离为一种不寻常的水不溶性钾盐复合物。这种新复合物的形成是从Q[n]混合物中分离Q[5]盐的方便方法。该复合物是Q的方便、高产来源[5]。
Alkali metal cations act as templates in the synthesis of cucurbit[n] uril, Q[n], for n = 5-8, either from a preformed oligomer precursor, or directly from glycoluril and formaldehyde. Q[5] has been synthesised and isolated as an unusual, water-insoluble potassium salt complex. The formation of this new complex is a convenient method for isolating Q[5] as a salt from Q[n] mixtures. The complex is a convenient, high yielding source of Q[5].