N-（1-乙基丙基）-3,4-二甲基苯胺 二甲戊灵中间体 合成条件 探讨

楼主描述的信息太少，文献描述的都差不多To a Parr reaction bottle was charged 24.2 grams of 3,4-xylidine, 28 grams of diethyl ketone 0.516 grams of dichloroacetic acid (pKa about 1.5) and 1.2 grams of 5percent platinum on carbon.
Forty minutes at 70° C. and hydrogen pressure of 44-60 psig were required to consume 100percent of the theoretical amount of hydrogen.
A yield of 38.8 g of N-3-pentyl-3,4-xylidine, analyzing 93.9percent pure, was obtained.
Thus 36.4 g of product was obtained, corresponding to a yield of 95.4percent.
确实不行建议增大压力和提升反应温度吧，确实不行就分两步反应嘛，先拿到苯胺化合物再进行后续还原胺化