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■ Microwave-Assisted Approach to Nitroaniline/Aminopyridine and Its Inhibition Activity of Seed Germination

Zhi-you Huang,* Wen-sheng Li, Bo He, Ning Zhang, Zi-Ying Guo, Xiao-Hong Li, and Xian-Jun Yang

*College of Urban and Rural Construction, Shaoyang university, hunan province, China

Abstract

An efficient approach to nitroaniline/aminopyridine was developed under microwave irradiation. The sulphamide and halogenated nitrobenzene/pyridine were used as starting materials. With low consumption, environment friendly, gram-scale synthesis, good substrate scope and excellent product yields, this methodology is superior to the existing approach. Additionally, these compounds 3a-3s could inhibit soybean seed germination at the concentration of 50 µM. Especially, the inhibition rate of compound 3m was higher than 90%.