Abstract
Abstract
N-(4-Arylazobenzoyl)-1H-benzotriazoles react with hydroxyterpenes,
sugars, and steroids in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene
(DBU) at room temperature in tetrahydrofuran to afford azo dye labeled
terpenes, sugars, and steroids (45-82% yield).