| 摘要 |
<p>A process for the production of benzofuran derivatives having the general formula, <IMAGE> wherein R is alkyl, in particular of 2,3-dihydro-2,2-dimethyl benzofuran-7-ol, starting from pyrocatechol ethers in one step operation. The process essentially consists of heating a solution of pyrocatechol ether in an inert organic solvent in the presence of a catalyst comprising metals of 3 DEG and 4 DEG group of the Periodic System in form of carboxylates or of modified zeolites. The products are known intermediates for the production of insecticides.</p> |
