| 摘要 |
<p>Novel substituted 2-halogenopropionates of the formula in which R1 and R2 each independently are a hydrogen atom or a C1 to C6 alkyl group, X is a hydrogen or halogen atom, nitro, C1 to C6 alkyl or C1 to C6 alkoxy, a and n each independently are 1 or 2, and W is a halogen atom, or a 4-hydroxyphenoxy group, or alkali metal salt thereof, and their use as intermediates for herbicides.</p> |
