Torti Edoardo, Havel Václav, Yawer Mirza A, Ludvíková Lucie, Babiak Michal, Klán Petr, Sindelar Vladimir
Department of Chemistry & RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
CEITEC-Central European Institute of Technology and National Centre for Biomolecular Research, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
Chemistry. 2017 Nov 27;23(66):16768-16772. doi: 10.1002/chem.201704948. Epub 2017 Nov 6.
The oxidizing ability of peroxodisulfate upon complexation inside the Bambusuril macrocycle cavity is inhibited. This dianionic agent can be released on demand from its stable 1:1 complex in water (log K =6.9 m ) by addition of a more strongly bound anion, such as iodide (log K =7.1 m ), which can also be delivered in situ upon irradiation from a 4-hydroxyphenacyl iodide derivative with spatial and temporal precision. The oxidizing properties of peroxodisulfate ions liberated from the complex recover and can take part in subsequent chemical transformations.
过二硫酸盐在竹节环糊精大环腔内络合时的氧化能力受到抑制。通过加入结合更强的阴离子，如碘化物（log K = 7.1 m），这种二价阴离子试剂可以从其在水中稳定的1:1络合物中按需释放（log K = 6.9 m），碘化物也可以通过4-羟基苯甲酰碘衍生物在光照下以空间和时间精度原位提供。从络合物中释放出的过二硫酸根离子的氧化性能得以恢复，并可参与后续的化学转化。
