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    Synthesis of cyclopropylamine with phase transfer catalysis

    Cyclopropylamine is synthesized with γ-butyrolactone and isopropanol by five steps of ring-opening esterification, cyclization, hydrolysis, acylation and Hofmann degradation. Cyclization and hydrolysis are key...

    Jian-ming Yi, Kuo-wen Tang, Bi-ye Ren in Journal of Central South University of Tec… (2000)