Preparation of uniformly ¹⁴C‐labeled and ¹³C‐enriched catechol and hydroquinone via phenol

Abstract

S W R Y C a t e~h o l -U -~~C and hydr~quinone-U-~~C were prepared from phenol-U-I4C by mononitration followed by chromatographic separation of 0-and p-nitrophenol-U-14C. and the resulting aminophenols were converted by diazotization followed by hydrolysis to the title dials. ciently from benzene by nitration, reduction, diazotization and hydrolysis. phenol, catechol and hydroquinone containing more than 88% total carbon-13.