Depsidone synthesis. Part 20. Lecideoidin and dechlorolecideoidin

Abstract
The synthesis of methyl 2,9-dichloro-3,8-dihydroxy-1,6-dimethyl-11-oxo-11H-dibenzo[b,e][1,4]dioxepin-7-carboxylate (lecideoidin)(1) and methyl 2-chloro-3,8-dihydroxy-1,6-dimethyl-11-oxo-11H-dibenzo[b,e][1,4]-dioxepin-7-carboxylate (dechlorolecideoidin)(2) by oxidation of benzophenones and subsequent steps is described.

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