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- Title
Superacid-catalyzed Friedel-Crafts phosphination of 2-hydroxybiphenyls with phosphorus trichloride.
- Authors
Ito, Takatoshi; Iwai, Toshiyuki; Nakai, Takeo; Mihara, Masatoshi; Mizuno, Takumi; Ohno, Toshinobu; Ishikawa, Akira; Kobayashi, Jun ichi
- Abstract
Cyclic phosphorus compounds, 6 H-dibenz[ c, e][1,2]oxaphosphorin-6-oxide derivatives, were efficiently synthesized by the Friedel-Crafts reaction of 2-hydroxybiphenyls with phosphorus trichloride in the presence of superacids, especially trifluoromethanesulfonic acid (Tf OH) as a catalyst. Tf OH was investigated for the first time as an effective catalyst for the aromatic phosphination of 2-hydroxybiphenyls.
- Subjects
PHOSPHORINE; PHOSPHORUS chlorides; BIPHENYL compounds; FRIEDEL-Crafts reaction; SUPERACIDS; PHOSPHORUS compound synthesis; CYCLIC compounds synthesis
- Publication
Heteroatom Chemistry, 2016, Vol 27, Issue 5, p336
- ISSN
1042-7163
- Publication type
Article
- DOI
10.1002/hc.21346