With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.641-70-3,3-Nitrophthalic anhydride,as a common compound, the synthetic route is as follows.,641-70-3
To 580 ml of ammonia (cone, aqueous solution) 400 g (2.07 mol) of 2 were added. The temperature rose to 600C and the mixture was stirred for 1 h. After addition of 200 ml of ethanol the mixture was cooled to 5C. The resulting solid was isolated, washed with MTBE and dried in a vacuum oven at 400C. Yield: 81.6%.
The synthetic route of 641-70-3 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; ABBOTT GMBH & CO. KG; WO2007/6566; (2007); A1;,
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