2,6-二甲基-1-氨基茚满的连续流合成工艺
Continuous flow synthesis process of 2,6-dimethyl-1-aminoindane
采用喷涂法制备了镍丝网负载型镍铝催化剂,通过扫描电子显微镜(SEM)和X射线光电子能谱(XPS)对催化剂进行了表征。在连续流反应器中催化1-茚酮-2,6-二甲基肟合成2,6-二甲基-1-氨基茚满。考察了反应温度、质量空速(WHSV)和氢气压力对加氢反应的影响。实验结果表明:与间歇釜式反应器相比,连续流反应器明显提高了产物选择性,在反应温度为70℃,氢气压力为1.5 MPa,WHSV为0.5 h-1的条件下,1-茚酮-2,6-二甲基肟的转化率达到99.8%,2,6-二甲基-1-氨基茚满的选择性达到99.6%。
A nickel-aluminum catalyst supported on nickel mesh was prepared by the spray coating method,and the catalyst was characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS).The catalytic synthesis of 2,6-dimethyl-1-aminoindane from 2,6-dimethyl-1-indanone oxime was conducted in a continuous flow reactor.The effects of reaction temperature,weight hourly space velocity (WHSV);and hydrogen pressure on the hydrogenation reaction were investigated.The experimental results showed that the use of a continuous flow reactor significantly improved the product selectivity.Under the optimal reaction conditions of temperature 70℃,hydrogen pressure 1.5 MPa and WHSV 0.5 h-1,the conversion rate of 2,6-dimethyl-1-indanone oxime reached 99.8%,and the selectivity to 2,6-dimethyl-1-aminoindane was as high as 99.6%.
continuous flow / nickel mesh catalyst / hydrogenation reaction / oxime / 2,6-dimethyl-1-aminoindane
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