We developed a novel method for deprotecting the N-PMB group of carbazoles. The combination of PhI(OAc) 2 and N-hydroxyphthalimide cleaved the N-PMB group with moderate to good yields depending on the substituents on the carbazole ring.Carbazole is an important structure in natural products and pharmaceuticals with a variety of biological activities. 1 Carbazoles are also used in functional materials with interesting optical and electronic properties. 2 Therefore, various synthetic methods have been reported. 1a,1b,3 In some cases, a nitrogen atom
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