Lithium hydrazide

Alkali metal hydrazides, (R1RZNNR3)M, are useful intermediates in the preparation of a wide range of metal and non-metal hydrazides.3 a b As expected, lithium hydrazides are the most intensely studied systems from group... 

Calcium hydrazide, 3932 Lithium hydrazide, 4496 Sodium hydrazide, 4500 See also V-METAL DERIVATIVES... 

Treatment of alkylelement halides with lithium hydrazides and salt elimination. 

Lithium 1-heptynide, 2830 Lithium hexaazidocuprate(4—), 4272 Lithium hexamethylchromate(3—), 2586 Lithium hexaphenyltungstate(2—), 3886 Lithium hydrazide, 4491 Lithium hydride, 4426... 

Calcium hydrazide, 3926 Lithium hydrazide, 4491 Sodium hydrazide, 4495 See also A -METAL DERIVATIVES... 

The synthesis of the first silylhydrazines was described in the 1950s51,52. In spite of the successful use of lithium hydrazides in preparative chemistry, the first structure analyses were carried out over 30 years later53,54. Nowadays dimeric, trimeric, tetrameric and hexameric hydrazides have been described53-58. 

Table II shows a comparison of the data for ab initio calculations of the lithium hydrazide system (NHNH2)Li+ (A)1819 with that for the side-on units Nl-N2-Li2 and N5-N6-U3 (B) in 9, derived from the X-ray structure determination ...

Apart from organic derivatives of pentazene, N5H5, the cyclic compound 78 is, so far, the only other Group IV derivative of this hydride (35). It is formed by the action of ethyl nitrite on the silylated lithium hydrazide 77 in diethyl ether at -78 C [Eq. (99)]. It is a colorless crystalline... 

Silylated nitramines have been prepared by silylation using aminosilanes, and while monosilylated derivatives have been isolated, (Me3Si)aNN02 decomposes below room temperature. The disilazane pseudohalides, (Me3Si)aNNCX (X=0 or S) result from the lithium hydrazide and phosgene or CSa, with the isocyanate a thermostable dimer and the isothiocyanate a labile monomer. The... 

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