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The Passerini reaction of indane-1,2,3-trione, isocyanides and benzoic acid derivatives proceed at room temperature and sterically congested 2,2-disubstituted indane-1,3-dione derivatives are synthesized in excellent yields. The reaction proceeds smoothly and cleanly under mild conditions and no side reactions are observed.
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Kazemizadeh et al. (2009) studied this question.
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