| 摘要 |
<p>The invention relates to novel acylmethylene-1,3-dioxolanes and acylmethylene-1,4-dioxanes of the general formula (I), in which R1, R2, R3 and n are defined as in the description, and to a novel method for the production thereof. Acylmethylene-1,3-dioxolanes and acylmethylene-1,4-dioxanes are important intermediate products for producing pyrazoles and anthranilic acid amides, which can be used as insecticides.</p> |
