A clean one-step synthesis of 2-hydroxythiophene [thiophen-2(5H)-one] by a Fenton-like [copper(II)-hydrogen peroxide] oxidation of thiophene under aqueous conditions // Journal of Chemical Research, Synopses, 1996, Issue5, Pages 242-243, а то в доступе только с 97 года журнал.
Заранее огромное спасибо!
