56568-39-9Relevant academic research and scientific papers
Synthetic studies on a series of functionalized pyrylium salts, 4-chloro- and 4-bromophosphinines
Nagahora, Noriyoshi,Tokumaru, Hiroshi,Ikaga, Shinpei,Hanada, Takuya,Shioji, Kosei,Okuma, Kentaro
, p. 1880 - 1887 (2018)
A series of new pyrylium salts that bear sulfonate and phosphonate groups were obtained from the reactions between 2,6-diphenyl-4H-pyran-4-one, sulfonic anhydride, and chlorophosphates, and analyzed spectroscopically. Furthermore, treatment of 2,6-diphenyl-4H-pyran-4-one with phosphoryl chloride or bromide afforded the corresponding 4-chloro- and 4-bromopyrylium tetrafluoroborates in good yield. Subsequently, the synthesis of the corresponding 4-chloro- and 4-bromophosphinines was accomplished by treating the respective chloro- and bromopyrylium tetrafluoroborates with tris(trimethylsilyl)phosphine.
