[4-chloro-2-(1-hydroxy-2-methyl-propyl)-5-methoxy-phenoxy]-acetic acid ethyl ester 在
二氧化锰 SiO2 、 ethyl acetate heptane 作用下,
以
二氯甲烷 为溶剂,
以afforded 0.887 g of the title compound as off-white crystals的产率得到(4-Chloro-2-isobutyryl-5-methoxy-phenoxy)-acetic acid ethyl ester