Small-Ring Compounds. III. Synthesis of Cyclobutanone, Cyclobutanol, Cyclobutene and Cyclobutane
作者:John D. Roberts、Charles W. Sauer
DOI:10.1021/ja01180a013
日期:1949.12
In the present work, methods for the preparation of cyclobutanone from methylenecyclobutane were investigated. Ozonization was not attempted because of the relative difficulty of adapting this procedure to large-scale laboratory operation. Satisfactory yields of cyclobutanone were obtained from methylenecyclobutane by oxidation to 1-(hydroxymethy1)-1-cyclobutanol and cleavage of the glycol with lead
在目前的工作中,研究了从亚甲基环丁烷制备环丁酮的方法。由于将该程序应用于大规模实验室操作相对困难,因此没有尝试臭氧化。通过将亚甲基环丁烷氧化为 1-(羟基甲基1)-1-环丁醇并用四乙酸铅裂解二醇,可得到令人满意的环丁酮收率。Gustavson 之前通过用稀高锰酸钾水溶液氧化亚甲基环丁烷,以 40% 的收率获得了 1-(羟基甲基)-1-环丁醇。在本研究中,使用 Roebuck 和 Adkins 制备反式环己二醇-1,2 所用程序的改进,通过过甲酸氧化实现了 80-83% 的产率。在使用叔丁醇中的过氧化氢的单个实验中获得了 39% 的产率。在二氯甲烷溶液中用四乙酸铅氧化二醇得到高达90%的环丁酮收率。乙二醇的高碘酸盐氧化不成功。来自季戊四醇的环丁酮的总产率为40%。