Zheng, Yuanqin; Zhou, Yuqiao; Zhang, Yan; Deng, Pengchi; Zhao, Xiaohu; Jiang, Shichao; Du, Guangxi; Shen, Xin; Xie, Xinyu; Su, Zhishan; Yu, Zhipeng published the artcile< Water-Involved Ring-Opening of 4-Phenyl-1,2,4-triazoline-3,5-dione for ""Photo-Clicked"" Access to Carbamoyl Formazan Photoswitches In Situ>, Computed Properties of 401-78-5, the main research area is functionalized carbamoyl formazan photochem preparation DFT NBO; diarylsydnone phenyl triazolidine dione photoswitchable ring opening water promoted; Azo compounds; Diarylsydnones; Photo-ligation; Photoswitches; Umpolung.
A “”photo-click”” method that involved nitrile imine from diarylsydnone to capture diazenecarbonyl-phenyl-carbamic acid (DACPA) generated by water-promoted ring-opening of PTAD was described. DFT calculation revealed that H-bonding interactions between PTAD and water were vital to form DACPA which exhibited an umpolung effect during ligation by nature bond orbit anal. (NBO). The ultra-fast ligation resulted in carbamoyl formazans, as a unique Z <-> E photo-switchable linker on target mols., including peptide and drugs, with excellent anti-fatigue performance. This strategy was showcased to construct highly functionalized carbamoyl formazans such as I [R = H, 4-F, 4-Ph, etc.; R1 = 4-CF3, 3-CN, etc.; R2 = H, 4-F, 4-MeO, etc.] in situ for photo-pharmacol. and material studies, which also expanded chem. of PTAD in aqueous media.
Chemistry – An Asian Journal published new progress about Decarboxylation. 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, Computed Properties of 401-78-5.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary