Acid catalyzed rearrangements of thia and aza analogs of adamantanes a new derivative of sulfamide, formaldehyde and ammonia
作者:B. S. Thyagarajan、J. B. Kang
DOI:10.1002/jhet.5570110503
日期:1974.10
The conversion of 2-thia-1,3,5,7-tetraazatricyclo[3.3.1.13,7] decane 2,2-dioxide under acid conditions into a hexaazatetracyelo derivative is described.
The new synthesis of sulfuryl-bridged triazinane and its selective recognition to SO42−
作者:Tao Yuan、Weiwei Gao、Qiaochun Wang
DOI:10.1007/s11164-021-04585-6
日期:2022.1
A new method has been developed for the synthesis of a cage-like sulfuryl-bridged triazinane molecule HEXS by acidic condensation of a glycoluril analog with (HCHO) n , having the advantages of avoiding toxic intermediate and achieving a relatively high yield of 64%. The measurements of thermodynamic quantities of the interactions of HEXS with a series of anions by isothermal titration calorimetry
开发了一种通过甘脲类似物与(HCHO) n 的酸缩合合成笼状硫酰桥连三嗪烷分子HEXS的新方法,该方法具有避免有毒中间体和实现64%的较高收率的优点。通过等温滴定量热法测量 HEXS 与一系列阴离子相互作用的热力学量表明,HEXS 选择性地与 SO 4 2- 结合,具有高结合常数 Ka = 1.2 × 10 6 M -1 。进一步的X射线单晶衍射分析表明,HEXS通过多个C-H···O氢键相互作用与SO 4 2- 结合。图形摘要