There are several solutions to construct benzofuran rings. The most typical strategies are dehydration of phenoxyalkanone less than acidic ailment,104 dehydration of o-hydroxybenzophenone beneath acidic condition,one zero five decarboxylation of o-acetylphenoxyacetic acid or ester under alkaline ailment,106 and cyclization of o-hydroxybenzophenone … Read More