Sulfonation of 4H-cyclopenta(def)phenanthrene and its carbonyl derivative.

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概要

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• The sulfonation of 4<I>H</I>-cyclopenta[<I>def</I>]phenanthrene gave 1-sulfonic acid accompanied by formation of 2-, 3-, and 8-analogues. The reaction of 8,9-dihydro derivative with sulfuric acid in acetic anhydride yielded exclusively the 2-acid. Also, 4<I>H</I>-cyclopenta[<I>def</I>] phenanthren-4-one afforded the 8-acid as the main product, and 1- and 2-isomers as minor products. The formation of the keto 2-sulfonic acid would be controlled thermodynamically and that of the 8-isomer is controlled kinetically.

• 公益社団法人 日本化学会の論文

著者

• Minabe Masahiro

  Department of Industrial Chemistry, Faculty of Engineering, Utsunomiya University

関連論文

• Sulfonation of 4H-cyclopenta(def)phenanthrene and its carbonyl derivative.

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