| 摘要 |
PURPOSE:To produce a high-purity o-, m-or p-halogenated benzoyl halide in high yield industrially and inexpensively. CONSTITUTION:An o-, m- or p-phthaloyl halide of formula I (X is halogen) is heated in the presence of a metal catalyst to produce an o-, m- or p- halogenated benzoyl halide of formula II. |
