replacement of Cl by a more nucleophilic tBuO anion ligand, showed higher reactivity and para selectivity in the transformation of C–F to C–OtBu bond, distinctively different from that when only KOtBu was used (ortho selectivity) under the identical condition. Mechanistic studies including density functional theory calculations suggested a gold-mediated nucleophilic ligand attack of the C–F bond pathway
Simultaneous detection of small molecule thiols with a simple <sup>19</sup>F NMR platform
作者:Zhaofei Chai、Qiong Wu、Kai Cheng、Xiaoli Liu、Ling Jiang、Maili Liu、Conggang Li
DOI:10.1039/d0sc04664g
日期:——
A 19F NMR platform, capable of discriminating various small molecule thiols, was designed for in-cell thiol differentiation and monitoring, and further detection of the γ-GT activity, demonstrating the wide applications in thiol-related processes.
Reactions of 4-substituted tetrafluoropyridine derivatives with sulfur nucleophiles: SNAr and annelation processes
作者:Mark A. Fox、Graham Sandford、Rachel Slater、Dmitrii S. Yufit、Judith A.K. Howard、Antonio Vong
DOI:10.1016/j.jfluchem.2012.05.011
日期:2012.11
Reactions of model sulfur centred nucleophiles with 4-nitro-, 4-phenylsulfonyl- and 4-cyano-tetrafluoropyridine gave products arising from substitution of the nitro- and sulfonyl substituent or ring fluorine respectively. Ring fused products are formed upon reaction of 4-cyano-tetrafluoropyridine with mercapto-acetic acid ethyl ester.