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Synthesis, Structure, and Reactivity of 5-(Aryl)dibenzothiophenium Triflates.


ABSTRACT: A synthetic protocol for the preparation of 5-(aryl)dibenzothiophenium salts starting from inexpensive dibenzothiophene S-oxide and simple arenes is reported. The scope of the method regarding the nature of the arene is evaluated, intermediates along the reaction sequence have been trapped, and side-reactions identified. In addition, the X-ray structures of a complete set of these salts are reported and their reactivities studied. Specifically, chemoselective Suzuki coupling is observed at the dibenzothiophenium in the presence of iodides.

SUBMITTER: Kafuta K 

PROVIDER: S-EPMC7004049 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Synthesis, Structure, and Reactivity of 5-(Aryl)dibenzothiophenium Triflates.

Kafuta Kevin K   Korzun André A   Böhm Marvin M   Golz Christopher C   Alcarazo Manuel M  

Angewandte Chemie (International ed. in English) 20191126 5


A synthetic protocol for the preparation of 5-(aryl)dibenzothiophenium salts starting from inexpensive dibenzothiophene S-oxide and simple arenes is reported. The scope of the method regarding the nature of the arene is evaluated, intermediates along the reaction sequence have been trapped, and side-reactions identified. In addition, the X-ray structures of a complete set of these salts are reported and their reactivities studied. Specifically, chemoselective Suzuki coupling is observed at the d  ...[more]

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