广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
1期
194-195
,共2页
L-丙氨酸%四氟化硫%氟化反应%α-三氟甲基乙胺
L-丙氨痠%四氟化硫%氟化反應%α-三氟甲基乙胺
L-병안산%사불화류%불화반응%α-삼불갑기을알
L-alanine%sulfur tetrafluoride%fluoridation%α-Trifluoromethyl ethylamine
以L-丙氨酸和四氟化硫为原料,压力下经一步氟化反应制得α-三氟甲基乙胺。实验研究获得的最佳工艺条件为:以100 g L-丙氨酸为原料,n(L-丙氨酸)∶n(四氟化硫)为1∶2,55℃及18-19 kgf/cm^2压力下保温反应12 h,产品收率在55%以上,产品盐酸盐熔点在218.5℃以上。
以L-丙氨痠和四氟化硫為原料,壓力下經一步氟化反應製得α-三氟甲基乙胺。實驗研究穫得的最佳工藝條件為:以100 g L-丙氨痠為原料,n(L-丙氨痠)∶n(四氟化硫)為1∶2,55℃及18-19 kgf/cm^2壓力下保溫反應12 h,產品收率在55%以上,產品鹽痠鹽鎔點在218.5℃以上。
이L-병안산화사불화류위원료,압력하경일보불화반응제득α-삼불갑기을알。실험연구획득적최가공예조건위:이100 g L-병안산위원료,n(L-병안산)∶n(사불화류)위1∶2,55℃급18-19 kgf/cm^2압력하보온반응12 h,산품수솔재55%이상,산품염산염용점재218.5℃이상。
α-Trifluoromethyl ethylamine was prepared under pressure by using L-alanine and sulfur tetrafluoride as raw materials for one step fluoridation reaction.The optimal operating conditions for the process were investigated experimentally.These conditions obtained are: 100 g of L-alanine as raw material and molecular ratio of sulfur tetrafluoride to L-alanine at 2,the reaction at temperature of 55 ℃ and pressure of 18~19 kgf/cm^2 for 12 h.The yield of the product is above 55 % and the melting point of the hydrochloric salt of the product is above 218.5 ℃.