Titanium trichloride azides

Lithium aluminum hydride reduced )J-azidoethylbenzene to j8-aminoethyl-benzene in 89% yield [600], The azido group was also reduced with aluminum amalgam (yields 71-86%) [149], with titanium trichloride (yields 54-83%) [601], with vanadous chloride (yields 70-95%) [217] Procedure 40, p. 215), with hydrogen sulfide (yield 90%) [247], with sodium hydrosulfite (yield 90%) [259], with hydrogen bromide in acetic acid (yields 84-97%) [232], and with 1,3-propanedithiol (yields 84-100%) [602]. Unsaturated azides were reduced to unsaturated amines with aluminum amalgam [149] and with 1,3-propane-dithiol [602]. 

The only known azide in the group IVB is titanium(IV) azide trichloride, Ti(N3)Cl3. As a typical mixed azide, the yellow, covalent compound is hygro-... 

Chromyl azide chloride Molybdenum azide pentachloride Molybdenum azide tetrachloride Silver azide chloride Tin azide trichloride Titanium azide trichloride Tungsten azide pentabromide Uranium azide pentachloride Vanadium azide dichloride Vanadyl azide tetrachloride... 

The chemistry of alkyl and alkenyl azides has been well summarized in several recent reviews.233-237 The azides can be prepared via numerous methods, of which the addition of hydrazoic acid to C—C multiple bonds is one. With the exception of cyclopropenes,238 most alkenes are unreactive towards hydrazoic acid itself. However, the addition can be catalyzed by acids (phosphoric acid,239 sulfuric acid260 or trifluoroacetic acid261) or Lewis acids (aluminum trichloride, boron trifluoride or titanium tetrachloride).262... 

Titanium azide trichloride, 4141 Titanium butoxide, 3724 Titanium carbide, 0558 Titanium diazide dibromide, 0272 Titanium dibromide, 0283 Titanium dihydride, 4484 Titanium diiodide, 4625... 

Several alkyl and aryl azides have been reduced to the corresponding amines in good yield by tin(II) chloride at room temperature the less reactive azides require a catalytic amount of aluminum trichloride to be added. Aqueous vanadium(ll) chloride is a useful reducing agent for aryl azides heteroaryl and arenesulfonyl azides have been reduced with aqueous titanium(lll) chloride and with a molybde-num(III) catalyst generated from molybdenum(V) chloride and zinc. ... 

ESTANO (Spanish) (7440-31-5) Finely divided material is combustible and forms explosive mixture with air. Contact with moisture in air forms tin dioxide. Violent reaction with strong acids, strong oxidizers, ammonium perchlorate, ammonium nitrate, bis-o-azido benzoyl peroxide, bromates, bromine, bromine pentafluoride, bromine trifluoride, bromine azide, cadmium, carbon tetrachloride, chlorine, chlorine monofluoride, chlorine nitrate, chlorine pentafluoride, chlorites, copper(II) nitrate, fluorine, hydriodic acid, dimethylarsinic acid, ni-trosyl fluoride, oxygen difluoride, perchlorates, perchloroethylene, potassium dioxide, phosphorus pentoxide, sulfur, sulfur dichloride. Reacts with alkalis, forming flammable hydrogen gas. Incompatible with arsenic compounds, azochloramide, benzene diazonium-4-sulfonate, benzyl chloride, chloric acid, cobalt chloride, copper oxide, 3,3 -dichloro-4,4 -diamin-odiphenylmethane, hexafluorobenzene, hydrazinium nitrate, glicidol, iodine heptafluoride, iodine monochloride, iodine pentafluoride, lead monoxide, mercuric oxide, nitryl fluoride, peroxyformic acid, phosphorus, phosphorus trichloride, tellurium, turpentine, sodium acetylide, sodium peroxide, titanium dioxide. Contact with acetaldehyde may cause polymerization. May form explosive compounds with hexachloroethane, pentachloroethane, picric acid, potassium iodate, potassium peroxide, 2,4,6-trinitrobenzene-1,3,5-triol. 

Several mixed and hetero azides of vanadium(V) as well as azido complexes of vanadium(II) and (V) have been described. The crystalline vanadyl azide trichloride, VO(N3)Cl3, is made from VOCI3 and chlorine azide as described under the titanium azide. The moisture-sensitive compound deflagrates on thermal shock it is soluble in VOCI3. The brown, solid vanadium azide tetrachloride, V(N3)Cl4, was made accordingly from solid VCI4 and chlorine azide in CCI4 media. In the dry state at room temperature it is stable for several days, but decomposes with water and, less rapidly, with organic solvents. The compound is very sensitive to friction and impact and also explodes on thermal shock [141]. 

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