Disclosed is a process for preparing an N-mono- substituted-p-phenylenediamine which comprises reacting a compound having the formula:
wherein R is C1-C12 alkyl, phenyl, naphthyl" or phenyl substituted in the 2-, 4-, or 2,4- positions by C1-C8 alkyl; and R' is hydrogen or C1-C6 alkyl with a primary or secondary alcohol in the presence of a base in the absence of hydrogen and noble metal catalyst.
本发明公开了一种制备 N-单取代
对苯二胺的工艺,该工艺包括使具有以下式子 的化合物发生反应:
其中 R 为 C1-C12 烷基、苯基、
萘基 "或在 2-、4-或 2,4- 位被 C1-C8 烷基取代的苯基;R'为氢或 C1-C6 烷基,在无氢和
贵金属催化剂的情况下,在碱存在下与伯醇或仲醇反应。