Umpolung of 4,4-disubstituted 2-hydroxycyclohexa-2,5-dienones for the regiodivergent synthesis of disubstituted catechols

被引:0
|
作者
Akazawa, Ryunosuke [1 ]
Mohamed, Ahmed A. B. [1 ,2 ]
Yahata, Kenzo [1 ]
Miyagaki, Kohei [1 ]
Togami, Masaki [1 ]
Sawama, Yoshinari [1 ]
Kanomata, Kyohei [1 ]
Akai, Shuji [1 ]
机构
[1] Osaka Univ, Grad Sch Pharmaceut Sci, Suita, Osaka 5650871, Japan
[2] Mansoura Univ, Fac Pharm, Dept Med Chem, Mansoura 35516, Dakahlia, Egypt
关键词
catechols; hypervalent iodine reagent; rearrangement; POLYCYCLIC AROMATIC-HYDROCARBONS; DERIVATIVES; QUINONES;
D O I
10.1093/bulcsj/uoae111
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The umpolung of 4,4-disubstituted 2-hydroxycyclohexa-2,5-dienones 1 with PhI(OCOCF3)(2) achieved the migration into the more electron-rich C3 position, providing exclusively 3,4-disubstituted catechols 3. Acid-induced rearrangement of 1 produced 4,5-disubstituted catechols 2. These two reactions enabled the highly selective production of two regioisomers of disubstituted catechols, especially biaryls containing catechol moieties, from the common intermediates 1.
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页数:6
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