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Lithium imide is an inorganic compound with the chemical formula Li 2 N H. This white solid can be formed by a reaction between lithium amide and lithium hydride. [1] LiNH 2 + LiH → Li 2 NH + H 2. The product is light-sensitive and can undergo disproportionation to lithium amide and characteristically red lithium nitride. 2 Li 2 NH → LiNH 2 ...
Lithium amide or lithium azanide is an inorganic compound with the chemical formula LiNH 2. It is a white solid with a tetragonal crystal structure. [1] Lithium amide can be made by treating lithium metal with liquid ammonia: [2] 2 Li + 2 NH 3 → 2 LiNH 2 + H 2. Lithium amide decomposes into ammonia and lithium imide upon heating. [3]
The inorganic imide is an inorganic chemical compound containing an anion with the chemical formula HN 2−, in which nitrogen atom is covalently bonded to one hydrogen atom (as in lithium imide Li 2 NH and calcium imide CaNH). The other name of that anion is monohydrogen nitride.
In organic chemistry, an imide is a functional group consisting of two acyl groups bound to nitrogen. [1] The compounds are structurally related to acid anhydrides , although imides are more resistant to hydrolysis.
Lithium hydroxide is another important compound that is used in air purification systems, as well as in the production of lithium greases and lubricants. Lithium chloride is used as a desiccant and in the production of lithium metal, while lithium sulfate is used in the production of fertilizers and as a reagent in chemical reactions
It is commonly used as Li-ion source in electrolytes for Li-ion batteries as a safer alternative to commonly used lithium hexafluorophosphate. [3] It is made up of one Li cation and a bistriflimide anion.
An intramolecular S N 2 reaction by the anion forms the cyclic backbone of morphine. [14] Synthesis of morphine using lithium–halogen exchange. Lithium–halogen exchange is a crucial part of Parham cyclization. [15] In this reaction, an aryl halide (usually iodide or bromide) exchanges with organolithium to form a lithiated arene species.
It can be used to form various organolithium compounds, including acetylides [3] or lithium enolates. [2] where Me = CH 3. As such, it finds use in a range of coupling reactions, particularly carbon-carbon bond forming reactions such as the Fráter–Seebach alkylation and mixed Claisen condensations.