He was attempting to manufacture quinine from aniline, an inexpensive and readily available coal tar waste product.
他试图用苯胺批量制造奎宁，苯胺是一种廉价且容易获得的煤焦油废料。
2
Incorporating potassium dichromate and alcohol into the aniline at various stages of the experimental process, he finally produced a deep purple solution.
在实验过程的不同阶段，他将重铬酸钾和酒精加入苯胺中，最终得到了深紫色的溶液。
3
Chlorine is introduced into the ortho-position of aniline.