Du Yi-hui
2009
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Journal
Zhejiang Chemical Industry
Abstract
2-cholo-3-iodopyridine is an important raw material for producing 2-chloro-3-(trifluoromethyl) pyridine, which is the intermediate for the synthesis of flazasulfuron. 2-cholo-3-iodopyridine was synthesized by the process of the diazotization and the iodination from 2-chloro-3-pyridinamine. The yield of the product was about 80% and the structure was confirmed by 1H NMR and IR.