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Preparation and utilization of wheat straw anionic sorbent for the removal of nitrate from aqueous solution

Yu Wang1, Bao-yu Gao, Wen-wen Yue

  • 1School of Environmental Science and Engineering, Shandong University, Jinan 250100, China. wy@sdein.gov.cn

Journal of Environmental Sciences (China)
|February 1, 2008
PubMed

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One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or boiling acetic anhydride for converting amides to nitriles. Another reagent namely, thionyl chloride also accomplishes the dehydration of amides, where amide acts as a nucleophile. The first step of the mechanism involves the nucleophilic attack by the amide on the thionyl chloride to form an intermediate. In the next step, the electron pairs...
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