2009年4月
EFFECT OF ARYL SUBSTITUENTS ON INTRAMOLECULAR CYCLIZATION OF 2,2 '-BIPHENOQUINONES
HETEROCYCLES
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- 巻
- 79
- 号
- 開始ページ
- 865
- 終了ページ
- 872
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.3987/COM-08-S(D)57
- 出版者・発行元
- PERGAMON-ELSEVIER SCIENCE LTD
Effect of aryl substituents on intramolecular cyclizations of 3,3',5,5'-tetraaryl-2,2'-biphenoquinones (Ar = phenyl (1a) and 4-methoxyphenyl (1b)) has been studied. In benzene, 1a gave 2,4,6,8-tetraphenyldibenzofuran-1-ol (10) gradually as a main product, indicating the phenyl substituents preferred to stabilize the intermediate by delocalization of the negative charge rather than that of the positive one. In contrast, the reaction of 1b occurred spontaneously in order to give a complex mixture, which should be due to 4-methoxyphenyl substituent at the 3 position.
- リンク情報
- ID情報
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- DOI : 10.3987/COM-08-S(D)57
- ISSN : 0385-5414
- eISSN : 1881-0942
- Web of Science ID : WOS:000266564200071