Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-02-23
1991-02-12
Springer, David B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548459, C07D40304
Patent
active
049925563
ABSTRACT:
An indigo compound is prepared by reacting an indole compound unsubstituted at the 2- and 3-positions with an organic hydroperoxide, preferably in the presence of a metallic compound catalyst capable of catalyzing the oxidation of the carton atom at the 3-position of the indole compound, such as a compound of a metal of group 4A, 5A or 6A of the periodic table.
Aoki Shinobu
Hara Isao
Suzuki Hiroharu
Takaki Usaji
Yamamoto Yoshihiro
Mitsui Toatsu Chemicals Incorporated
Springer David B.
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