4,5-Dimethoxy-o-benzoquinone has been prepared by the oxidation of catechol with sodium iodate in methanol. In higher alcohols, the same oxidation occurs in the presence of a crown ether to give the corresponding 4,5-dialkoxy-o-benzoquinones. In the latter cases using 18-crown-6, the potassium salt is more effective than the sodium salt.
Composition and method using substituted ortho-quinones as electron transfer agents in analytical determinations
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0255679A2
公开(公告)日:1988-02-10
Certain methanol soluble ortho-benzo or -naphthoquinones are useful electron transfer agents. They are particularly useful in the detection of cells in urine.
某些可溶于甲醇的邻苯醌或萘醌是有用的电子传递剂,尤其适用于检测尿液中的细胞。
Prati Laura, Rossi Michele, Gazz. chim. ital, 125 (1995) N 2, S 83-86