Diimide

chemical

Diimine is a reducing agent. Selective cis hydrogen chemical reactions for heavy bonds of alkenes, alkynes and azo compounds^[1] 。^[1]

Chinese name: Diimide
Foreign name: diimide^[2]

chemical formula: N two H two^[2]
CAS login number: 3618-05-1
molecular weight: thirty point zero three

catalog

Molecular structure data

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1、 Molar refractive index ：6.36

2、 Molar volume （cm three /mol）：2 4.3

3、 Isotonic capacity （9 0.2K）：68.6

4、 surface tension （dyne/cm）：63

5、 Dielectric constant : No available

6、 Polarizability ：2.5 2

7、 Single isotope mass ：30. 021798 Da

8、 Nominal mass ：30 D a

9. Average mass: 30.0 293 Da^[1]

nature

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Diimines are very unstable and quickly decompose into hydrogen and nitrogen in the absence of olefins.^[2]

synthetic method

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Add 200mol amorphous into the anaerobic reaction system Selenium powder And 0.20ml Anhydrous ethanol And then add 130 mol under 0 ℃ and nitrogen hydrazine And 0.26ml absolute ethanol, which can be used for the next reaction after several hours of reaction. It can also be carried out with hydrogen peroxide or iodine containing trace copper ions hydrazine The diimide was prepared by deoxidation of.^[1]

purpose

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Reducing agent. The reaction between diimide and olefin is carried out through a cyclic complex intermediate, so it is a cis addition. Trans diimide does not react with olefins.^[2]

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