Tetrahedron Letters p. 625 - 628 (1987)
Update date:2022-09-26
Topics:
Iyoda, Masahiko
Sato, Koichi
Oda, Masaji
5-(3,5-Di-t-butyl-4-hydroxyphenyl)tropolone (5) and 5,5'-bitropolone (7) were synthesized using transition-metal-catalyzed coupling reactions.Oxidation of 5 afforded the diphenoquinone-type trione (6); however, 7 could not be converted into 8.The quinonoid character of 6 is discussed on the basis of the electrochemical redox behavior.
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Doi:10.1016/0223-5234(87)90277-7
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