A free radical reaction between 2-aryloxy-1,4-naphthoquinones and dialkly malonates initiated by manganese(III) acetate is described. This reaction provides a new method for the synthesis of 6,11-dihydro-6,11- dioxobenzo[b]xanthenes. With meta substituent on aryloxy ring, this reaction shows unusual high regioselectivity.
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Organic Chemistry