申请人:Wisconsin Alumni Research Foundation
公开号:US20190055193A1
公开(公告)日:2019-02-21
Substituted hydroquinones and quinones and methods of synthesizing such compounds are disclosed herein. The substituted hydrroquinones have the formula:
while the substituted quinones have the corresponding oxidized structure (1,4-benzoquinones). One, two, three, or all four of R
1
, R
2
, R
3
and R
4
comprise a thioether moiety and a sulfonate moiety, and wherein each R
1
, R
2
, R
3
and R
4
that does not comprise a thioether and a sulfonate moiety sulfonate moiety is independently a hydrogen, an alkyl or an electron withdrawing group.
The substituted hydroquinones and quinones are soluble in water, stable in aqueous acid solutions, and have a high reduction potential in the oxidized form. Accordingly, they can be used as redox mediators in emerging technologies, such as in mediated fuel cells or organic-mediator flow batteries.