A Simple Key For phenazolam Unveiled
There are several approaches to build benzofuran rings. The commonest procedures are dehydration of phenoxyalkanone beneath acidic condition,104 dehydration of o-hydroxybenzophenone underneath acidic problem,105 decarboxylation of o-acetylphenoxyacetic acid or ester less than alkaline issue,106 and cyclization of o-hydroxybenzophenone to construct