Claims
- 1. A benzoquinone derivative representative by formula ##STR39##
- 2. A salt of an anion or anion radical of a benzoquinone derivative represented by formula (I) ##STR40## wherein one of ##STR41## represents a heterocyclic ring selected from the group consisting of ##STR42## and other represents one of said heterocyclic rings or a group of formula ##STR43## and wherein R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, a halogen atom, a nitro group, a cyano group, or a carboxylic ester group.
Priority Claims (3)
Number |
Date |
Country |
Kind |
61-298371 |
Dec 1986 |
JPX |
|
61-298372 |
Dec 1986 |
JPX |
|
61-298373 |
Dec 1986 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/131,665 filed Dec. 11, 1987, now U.S. Pat. No. 4,960,886.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
Country |
Parent |
131665 |
Dec 1987 |
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