Representative reaction types involved in export products

CAS:

1. UllmannCoupling Reaction

 

 

2. Suzuki coupling Reaction

 

 

3.Hydrogenation Reaction

 

4.Grignard Reaction

 

 

5.Nitration Reaction

 

 

6.Halogenation Reaction

 

7.Wittig Reaction

 

8.Lithium n-butyl reaction

 

 

 

 

 

9.Buchwald-Harting  cross coupling reaction

 

 

 

10.Friedal-Crafts reaction

 

 

Refined post-treatment：

1) the post-purification treatment includes recrystallization, distillation, high vacuum distillation, column adsorption and so on. 

2) Metal single ion tube control can reach ppb level.