Preparation method of 1-amino-2-cyano cyclopentene

The invention discloses a preparation method of 1-amino-2-cyano cyclopentene and a preparation method of the 1-amino-2-cyano cyclopentene. According to the invention, a continuous fixed bed process is adopted, adiponitrile is taken as a raw material, and 1-amino-2-cyanocyclopentene is obtained through cyclization reaction under the action of a bis (trimethylsilyl) amino cesium modified acidic molecular sieve loaded amphoteric metal oxide catalyst. The conversion rate of adiponitrile reaches up to 100%, the selectivity of 1-amino-2-cyano cyclopentene reaches up to 98% or above, the catalyst can continuously operate for 1000 h or above, and the catalyst has the advantages of being high in activity and selectivity and good in stability and has a very good industrial prospect. 本发明公开一种1-氨基-2-氰基环戊烯的制备方法。本发明采用连续法固定床工艺，以己二腈为原料，在二(三甲基硅基)氨基铯改性酸性分子筛负载两性金属氧化物催化剂下进行环化反应得到1-氨基-2-氰基环戊烯。本发明己二腈的转化率高达100%，1-氨基-2-氰基环戊烯的选择性高达98%以上，催化剂连续运转1000h以上，具有活性和选择性高，稳定性好的优点和很好的工业化前景。