Catalyst-free Mannich reaction of hydroxyanthraquinone: facile access to emodin Mannich bases and anthraoxazines
2013
Abstract A simple and efficient method for derivatization of hydroxyanthraquinone natural product emodin through catalyst-free Mannich reaction is described. The method allows the modification of emodin skeleton at 2-position. This new derivatization strategy to emodin provides a clear advantage over traditional approaches, due to its easy operation and efficiency that does not involve the protection and deprotection.
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