含噻嗪-1,1-二氧化物杂环作为氢键供体的阴离子受体。

Department of Chemistry, University of Western Ontario, 1151 Richmond St., London, Ontario N6A 5B7, Canada.

Beilstein J Org Chem. 2010 May 19;6:50. doi: 10.3762/bjoc.6.50.

The synthesis, X-ray crystal structures and anion recognition properties of two receptors containing thiazine-1,1-dioxide heterocycles as hydrogen bond donating subunits are reported. The newly synthesized receptors display much different anion selectivities in acetone-d₆ than N,N'-diphenyl-1,3-disulfonamidobenzene that was used as a comparison. The selectivity exhibited by one of the new receptors for chloride anions can be attributed to greater steric demand in the cleft formed, in part, by its terminal phenyl rings; an effect that is absent in the comparison receptor.

报告了两个受体的合成、X 射线晶体结构和阴离子识别特性，这两个受体含有噻嗪-1,1-二氧化物杂环作为氢键供体部分。新合成的受体在丙酮-d₆中的阴离子选择性与用作比较的 N,N'-二苯基-1,3-二磺酰胺苯有很大不同。其中一个新受体对氯离子的选择性可以归因于其末端苯环形成的裂缝空间的更大空间需求；这种影响在比较受体中不存在。