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Updated: Jun 12, 2025

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O
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Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

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高温水释放尿素作为源,使其转向伊米达

Fabián Amaya-García1,2, Lena Schittenhelm1, Miriam M Unterlass1,2

  • 1Universität Konstanz, Department of Chemistry Universitätsstrasse 10 78464 Konstanz Germany fabian.amaya-garcia@uni-konstanz.de miriam.unterlass@uni-konstanz.de.

Green chemistry : an international journal and green chemistry resource : GC
|September 23, 2024
PubMed
概括

在高温水中的尿素可以有效地在没有催化剂或有机溶剂的情况下合成伊米达. 这种绿色方法利用尿素作为氨源来构建复杂的有机分子.

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Imine formation involves the addition of carbonyl compounds to a primary amine. It begins with the generation of carbinolamine through a series of steps involving an initial nucleophilic attack and then several proton transfer reactions. The second part includes the elimination of water, as a leaving group, to give the imine.
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Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
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