Table 2 Comparative study of catalyst
From: Facile and efficient one-pot synthesis of benzimidazoles using lanthanum chloride
Number | Amount of catalyst (LaCl 3) (eq) | Time (h) |
|---|---|---|
1 | 0.1 | 2.0 |
2 | 0.2 | 2.0 |
3 | 0.4 | 3.5 |
4 | 0.6 | 3.5 |
5 | 0.8 | 3.0 |
6 | 1.0 | 3.0 |
7 | No catalyst | 15 |