Aryl Imidazylates and Aryl Sulfates As Electrophiles in Metal-Free ArSN1 Reactions
摘要:
Some oxygen-bonded substituents were investigated as leaving groups in photoinduced ArSN1 reactions. Irradiation of aryl imidazylates and of the corresponding imidazolium salts mainly caused homolysis of the ArO-S bond. However, previously unexplored trifluoroethoxy aryl sulfates were found to undergo efficient metal-free arylation. The sulfates were conveniently generated in situ by dissolving the corresponding imidazolium salts in basic 2,2,2-trifluoroethanol.
作者:Dabkowski, Wojciech、Michalski, Jan、Skrzypczynski, Zbigniew
DOI:——
日期:——
Aryl Imidazylates and Aryl Sulfates As Electrophiles in Metal-Free ArS<sub>N</sub>1 Reactions
作者:Hisham Qrareya、Stefano Protti、Maurizio Fagnoni
DOI:10.1021/jo502172c
日期:2014.12.5
Some oxygen-bonded substituents were investigated as leaving groups in photoinduced ArSN1 reactions. Irradiation of aryl imidazylates and of the corresponding imidazolium salts mainly caused homolysis of the ArO-S bond. However, previously unexplored trifluoroethoxy aryl sulfates were found to undergo efficient metal-free arylation. The sulfates were conveniently generated in situ by dissolving the corresponding imidazolium salts in basic 2,2,2-trifluoroethanol.