Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
Photochem Photobiol Sci. 2019 Oct 9;18(10):2411-2420. doi: 10.1039/c9pp00260j.
ortho-Nitrobenzyl (oNB) triggers have been extensively used to release various molecules of interest. However, the toxicity and reactivity of the spent chromophore, o-nitrosobenzaldehyde, remains an unaddressed difficulty. In this study we have applied the well-established supramolecular photochemical concepts to retain the spent trigger o-nitrosobenzaldehyde within the organic capsule after release of water-soluble acids and alcohols. The sequestering power of organic capsules for spent chromophores during photorelease from ortho-nitrobenzyl esters, ethers and alcohols is demonstrated with several examples.
邻硝基苄基（oNB）引发剂已被广泛用于释放各种感兴趣的分子。然而，用过的发色团邻硝基苯甲醛的毒性和反应性仍然是一个未解决的难题。在这项研究中，我们应用了成熟的超分子光化学概念，在释放水溶性酸和醇后，将用过的触发剂邻硝基苯甲醛保留在有机胶囊内。通过几个实例证明了有机胶囊在邻硝基苄基酯、醚和醇的光解过程中对用过的发色团的螯合能力。
