Volume 27, Issue 5 pp. 336-342
Research Article
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Superacid-catalyzed Friedel–Crafts phosphination of 2-hydroxybiphenyls with phosphorus trichloride

Takatoshi Ito

Corresponding Author

Takatoshi Ito

Osaka Municipal Technical Research Institute, Osaka, Japan

Correspondence

Takatoshi Ito and Toshinobu Ohno, Osaka Municipal Technical Research Institute, Osaka, Japan.

Emails: [email protected]; [email protected]

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Toshiyuki Iwai

Toshiyuki Iwai

Osaka Municipal Technical Research Institute, Osaka, Japan

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Takeo Nakai

Takeo Nakai

Osaka Municipal Technical Research Institute, Osaka, Japan

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Masatoshi Mihara

Masatoshi Mihara

Osaka Municipal Technical Research Institute, Osaka, Japan

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Takumi Mizuno

Takumi Mizuno

Osaka Municipal Technical Research Institute, Osaka, Japan

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Toshinobu Ohno

Corresponding Author

Toshinobu Ohno

Osaka Municipal Technical Research Institute, Osaka, Japan

Correspondence

Takatoshi Ito and Toshinobu Ohno, Osaka Municipal Technical Research Institute, Osaka, Japan.

Emails: [email protected]; [email protected]

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Akira Ishikawa

Akira Ishikawa

Marubishi Oil Chemical Co., Ltd, Osaka, Japan

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Jun-ichi Kobayashi

Jun-ichi Kobayashi

Marubishi Oil Chemical Co., Ltd, Osaka, Japan

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First published: 09 September 2016
Citations: 6
Contract grant sponsor: JSPS KAKENHI.
Contract grant number: 25410198.

Abstract

Cyclic phosphorus compounds, 6H-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 (TfOH) as a catalyst. TfOH was investigated for the first time as an effective catalyst for the aromatic phosphination of 2-hydroxybiphenyls.

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