| 摘要 |
<p>Case 4691 PROCESS FOR PRODUCING SUBSTITUTED PYRROLES A process for the preparation of alkyl 1,4-dimethyl-3-ethoxycarbonylpyrrole-2-acetate compounds by reacting a diloweralkyl acetone dicarboxylate, a chloromethyl lower alkyl ketone and an aqueous loweralkylamine in the presence of an added organic brominated or chlorinated hydrocarbon co-solvent.</p> |
