Tin-nitrogen compounds

Using tin-nitrogen compounds, further stannylation of already stannylated allenes can be accomplished giving stannylacetylenes151 ... 

The early syntheses of cyclic tin-nitrogen compounds were reviewed by Jones and Lappert in 1966 (108). The two most common preparative routes are transamination reactions (109) and reactions between R2SnCl2 and an alkali metal amide (110). Some examples are shown in Eqs. (24)-(26). Dilithio reagents analogous to 28 can react with other metal dihalides... 

Any HETCOR pulse sequence can readily be extended by a Hahn-echo pulse train [20] which is particularly useful in the case of Sn/ H HEED-HETCOR of tin-nitrogen compounds. This enables one to measure y( Sn, N), /( N, H) (together with the relative signs) and A / N( Sn), all at the same time (see Figure 13). Numerous other modifications of 2D HETCOR experiments are feasible, many of which are based on schemes of selective excitation and/or... 

K. Jones and Organometal. Chem. Rev. 1, 67 Organic tin-nitrogen compounds 25... 

See References 4 and 8 for more data see Reference 233 for three-coordinate tin-nitrogen compounds -diketiminatotin(ll) halides, amides, chalcogenides. 

Silicon-nitrogen (and tin-nitrogen) compounds of the type Me3SiNR2, where R = Me or Et, when treated with S4N4 in the molar ratio 2 1 have been shown to yield products containing an S2N8 skeleton ... 

K. Jones and M. F. Lappert, Organic tin-nitrogen compounds. Organomet. Chem. 

Scherer, 0. J., Cleavage of organosilicon, germanium and tin nitrogen compounds by halides of Group III-VI," Organometal. Chem. Rev., Sect. A J, 28l-... 

Organometallic Nitrogen Compounds of Germanium, Tin, and Lead, 3, 397 Organometallic Pseudohalides, S, 169 Organometallic Reaction Mechanisms, 4, 267 Organopolysilanes, 6, 19... 

In this section, syntheses of a variety of inorganic nitrogen compounds are described. The syntheses include those of triazanium chlorides alkylamino derivatives of boron, arsenic, and tin and trimeric and tetrameric boron-nitrogen ring structures as exemplified by borazine (HNBH)3. 

In saline sediments aliphatic and polyaromatic hydrocarbons carbohydrates haloaromatic compounds chlorophenols basic nitrogen compounds various organosulphur compounds mixtures of organic compounds total sulphur arsenic and organic compounds of lead, mercury and tin. ... 

A relatively large number of tin-nitrogen cage structures have been characterized. The monomeric diazasilastannetidine, SnN(But)Si(Me2)MBu , is cleaved quantitatively by tert-butylamine to give either the closed [Sn2SiN3] cage (108) or the open cage (109). Thermolysis of the latter compound, however, results in conversion to the [Sn. N4] cubane... 

Tin(II) chloride, 298 to other nitrogen compounds Borane-Tetrahydrofuran, 42 Tin(II) chloride, 298 of nitrogen compounds, but not nitriles and nitro compounds Acetic-formic anhydride, 1 Borane-Dimethylamine, 42 Palladium catalysts, 230 Trimethylsilyllithium-Hexamethyldisi-lane, 328... 

The reader is encouraged to consult the excellent review by Veith concerning cyclic tin(II)-nitrogen compounds (107), which provides a complement to heterocycles containing organotin(IV). 

Bivalent tin compounds can act both as donors and as acceptors in the same molecule, as in FsB- S11X2 - - NMes (X = Cl, Br). The acceptor-donor complex (17) was obtained on treatment of the tin-nitrogen cage compound (18) with AI2CI6 (18) was produced from (5) and t-Bu2 NH (equation 3). Various other tin-nitrogen cages have been characterized, e.g. (19)-(22). ... 

Tin-nitrogen bonded compounds are generally formed by reaction of an alkali or alkaline earth metal amide with an organotin halide compoundsofthe types R Sn(NR2)4- , ( = 1-3), (R3Sn) NR (n = 1-3), andcyc/o-(R2SnNR0 ( = 2 or 3) can be prepared (equation 79). Other routes include transaminations (equations 80 and 81). Tin carboxamides and snlfonamides have been obtained by reaction of tin oxides or hydroxides with amides (equation 82). 

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