A higher cyanoacetic ester NCCH₂COOR' (wherein R' represents C₄-C₂₀ alkyl) is produced by the transesterification between a cyanoacetic ester NCCH₂COOR¹ (wherein R¹ represents C₁-C₃ alkyl) and an alcohol R'OH (wherein R' is as defined above) in the presence of a catalyst comprising a specified tin compound. The process enables a higher cyanoacetic ester useful as the intermediates of medecines, agricultural chemicals and industrial products to be produced from inexpensive and readily available cyanoacetic ester and alcohol more simply in a higher yield as compared with the conventional processes.
氰乙酸酯 NCCH₂COOR'(其中 R'代表 C₄-C₂₀烷基)与醇 R'OH(其中 R'如上文所定义)在由特定
锡化合物组成的催化剂存在下发生酯交换反应,从而制得高级
氰乙酸酯 NCCH₂COOR¹(其中 R¹ 代表 C₁-C₃烷基)。与传统工艺相比,该工艺能更简便地利用廉价易得的
氰乙酸酯和醇生产出用作药物、农用
化学品和工业产品中间体的高级
氰乙酸酯,且收率更高。