| 1 | Among them, (m-Aminobenzylamine)zinc complex was the best catalyst, for which the conversion efficiency was up to 99%. | |
| 2 | Two weeks after the interval viable No. 2 course. ⑤ other phentolamine, benzylamine benzene, benzyl amine C and D amine, etc. can choose. | |
| 3 | Tinoridine hydrochloride was synthesized from benzylamine by condensation, cyclization, decarboxylation, cyclization and then salt formation in an overall yield of 55.2%. | |
| 4 | The production process includes the following steps: adding dibenzyl amine and sodium hydroxide successively to reactor holding pure water while stirring; | |
| 5 | Good yield were achieved when 2-aminobenzylamines reacted with aromatic aldehydes which contain electron-withdraw or weak electron-donating substituent groups. |