| 摘要 |
<p>2-Alkyl- or 2-Alkenyl-4,6-diacetyl resorcinols of the formula
<CHEM>
in which R1 is alkyl C 1 to 6, e.g. isopropyl, or alkenyl C 2 to 6, e.g. allyl, are obtained by reacting 4,6-diacetylresorcinol with a corresponding alkyl or alkenyl halide. The reaction is carried out preferably at a temperature of from 20 to 120 DEG C, in a polar hydrogen bonding solvent, e.g. water, and in the presence of a base. The product 4,6-diacetyl resorcinols are useful as intermediates in the production of certain bezodipyran-dicarboxylic acids, which are of known utility as pharmaceuticals. Certain of the product 4,6-diacetyl resorcinols are novel. </p> |
