The reaction of 4-tert-butyl-1,2-benzoquinone (BQ) with 4-amino-N,N-diethylaniline (ADA) produces a stable blue adduct with lambda(max) 625 nm (epsilon 11,120 M-1 cm(-1)). This makes the reaction a sensitive analytical tool, suitable for the detection and spectrophotometric determination of this quinone even in the presence of biological compounds. The adduct was identified as 3-tert-butyl-4-(4'-diethylamino)-phenylimino-6-hydroxycyclohexa-2,5-dien-1-one.
Formation of a Blue Adduct between 4-tert-Butyl-1,2-benzoquinone and 4-Amino-N,N-diethylaniline
SANJUST, ENRICO;RESCIGNO, ANTONIO
2000-01-01
Abstract
The reaction of 4-tert-butyl-1,2-benzoquinone (BQ) with 4-amino-N,N-diethylaniline (ADA) produces a stable blue adduct with lambda(max) 625 nm (epsilon 11,120 M-1 cm(-1)). This makes the reaction a sensitive analytical tool, suitable for the detection and spectrophotometric determination of this quinone even in the presence of biological compounds. The adduct was identified as 3-tert-butyl-4-(4'-diethylamino)-phenylimino-6-hydroxycyclohexa-2,5-dien-1-one.
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