Arylation and alkylation of 6H-dibenzo[c,e][1,2λ5]oxaphosphinine 6-oxide at the phosphorus atom was accomplished. Tetrafluoro-4-pyridyl fragment was introduced via reaction of 6-trimethylsiloxy-6H-dibenzo[c,e][1,2]oxaphosphinine with pentafluoropyridine. The arylation of the title compound with aryl iodides containing both electron-acceptor and electron-donor substituents was effected under catalysis by palladium or nickel complexes.

This study demonstrates the successful arylation and alkylation of 6H-dibenzo[c,e][1,25]oxaphosphinine 6-oxide, resulting in a tetrafluoro-4-pyridyl fragment and arylation with pal

Paper

Arylation of 6H-dibenzo[c,e][1,2λ5]oxaphosphinine 6-oxide

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