New synthetic method for cycloalkanedione

摘要

Four kinds of cycloalkanedione were prepared from bis|benzimidazole methiodide salt and bis|Grignard reagent, the addition|hydrolysis reaction of bis|benzimidazole methiodide salt with bis|Grignard reagent is reported and a novel method for the preparation of various kinds of cycloalkanedione is provided.