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The Beckmann solution consists of acetic acid, hydrochloric acid and acetic anhydride, and was widely used to catalyze the rearrangement. 貝克曼溶劑被廣泛用來(lái)催化重排反應(yīng)，其實(shí)際成分為乙酸，鹽酸和乙酸酐。