An efficient synthesis of the 1-hydroxy-2-(prop-2'-enyl)9-anthrone is described. Selective nitration of anthraquinone, reduction to the corresponding amine, diazotization and treatment by sulfuric acid solution afforded the 1-hydroxy-9,10-anthraquinone in good yield as the key intermediate. Reaction with allyl bromide/K2CO3 and subsequent selective reduction accompanie...

Abstract. Biotransformations are chemical reactions carried out by microorganisms on organic substrates. can be regio-, chemo-, stereo- and enantio-selective. Bioreductions of great interest to the food pharmaceutical industries as they help reduce costs impacts environment. In this work, following biotransformations chalcones were performed: (2E)-1-(4-hydroxy-phenyl)-3-(2-methoxy-phenyl)-prop-...