Z. Shi et al., NEW SYNTHETIC METHOD FOR CYCLOALKANEDIONE, Science in China. Series B, Chemistry, life sciences & earth sciences, 41(3), 1998, pp. 255-258
Four kinds of cycloalkanedione were prepared from bis-benzimidazole me
thiodide salt and bis-Grignard reagent, the addition-hydrolysis reacti
on of bis-benzimidazole methiodide salt with bis-Grignard reagent is r
eported and a novel method for the preparation of various kinds of cyc
loalkanedione is provided.