Abstract: Tertiary amine alanes are produced by reacting sodium aluminum hydride and magnesium dichloride. A tertiary amine is admixed to extract the tertiary amine alane. Stoichiometric ratios of sodium aluminum hydride to magnesium dichloride can be varied to effect the magnesium compound by-product produced.

Abstract: A process for selective reduction is provided wherein an organic compound containing a reducible group such as acid, acid chloride, ester, aldehyde, ketone, epoxide, amide, oxime, imine, nitrile, or the like, is reacted with a tertiary amine alane such that an alcohol or an amine is produced, substantially without reduction of another group in the molecule such as a halogen-containing functionality, nitro group, or double bond.

Abstract: A process for the preparation of an amine complex of a metal halide which comprises reacting said metal with an amine hydrohalide. The process can be extended to the use of metals such as aluminum, magnesium, zinc, iron, and the like.

Abstract: A process comprising the reaction of an amine.aluminum trichloride complex and a bifluoride compound to produce an aluminum fluoride compound. Exemplary processes include the reaction of AlCl.sub.3.N(CH.sub.2 CH.sub.3) and NH.sub.4 HF.sub.2 or NaHF.sub.2 to respectively produce NH.sub.4 AlF.sub.4 or Na.sub.5 Al.sub.3 F.sub.14.

Abstract: BF.sub.3 is removed from a promoted BF.sub.3 catalyzed olefin oligomer reaction product by contacting the reaction product with either solid or aqueous KF to form a solid KBF.sub.4 precipitate. Solid NaF or NH.sub.4 F can also be used.

Abstract: Lithium aluminum hydride reacts with a tertiary amine to produce an amine alane and Li.sub.3 AlH.sub.6. Lithium values are recycled by reacting Li.sub.3 AlH.sub.6 with aluminum and hydrogen to produce LiAlH.sub.4. Since no metal halide by-product is produced in the first step, it has an advantage over other routes. The amine alane can react with SiF.sub.4 to produce silane and AlF.sub.3.

Abstract: A process is provided wherein tertiary ammonium trichlorosilyl, a complexing tertiary amine, and an alkali metal aluminum tetrahydride are reacted together in molar proportion of about 1:2:3, such that silane and tertiary amine alane are produced. Tertiary ammonium trichlorosilyl may be pre-formed or formed in situ by the reaction of trichlorosilane and tertiary amine. Yields are dramatically higher when the process is conducted in the presence of a tris(polyalkoxyalkyl)amine phase transfer catalyst.A sequential process is also provided for the preparation of silane and aluminum trifluoride. In the first part of this sequence, silane and tertiary amine alane are produced as described above. In the second part of the sequence, silicon tetrafluoride is reacted with the amine alane, producing additional silane and aluminum trifluoride.

Abstract: A process for the reduction of an organosilicon halide to an organosilicon hydride using an amine alane hence avoiding the problem of dismutation of the hydrocarbyl group as well as avoiding cleavage of the silicon-carbon bonds associated with other methods for reduction of organosilicon halides.

Abstract: A process for the preparation of an amine complex of an aluminum trihalide which comprises reacting aluminum with an amine hydrohalide. The process can be extended to the use of other metals besides aluminum, e.g. magnesium, zinc, or iron.

Abstract: Process for retarding the decomposition of an amine alane, said process comprising contacting an amine alane which is substantially free of zirconium, hafnium, niobium, uranium, vanadium, and chromium, with an effective amount of a decomposition retarding agent selected from the class consisting of O.sub.2, CO, nitrogen axides and alkyl nitrites.

Abstract: A process is described by which two useful products, silane and hydrocarbyloxyaluminun hydride, can be produced concurrently and in excellent yield. The process involves reaction between tetrahydrocarbyloxysilane such as Si(OEt).sub.4 and tertiary amine alane such as AlH.sub.3 .multidot.NEt.sub.3.

Abstract: Process for retarding the decomposition of an amine alane, said process comprising contacting an amine alane which is substantially titanium-free, with an effective amount of a decomposition retarding agent selected from the class consisting of O.sub.2, CO, nitrogen oxides and alkyl nitrites.

Abstract: Silicon halides and silicon hydrohalides, such as SiCl.sub.4, SiBr.sub.4, and SiHCl.sub.3 react with alkali metal aluminum hydrides such as NaAlH.sub.4 and LiAlH.sub.4 in the presence of a hydrocarbon reaction medium; e.g., toluene, and a tetraalkyl ammonium salt, and in the substantial absence of an ether, to produce silane and a metal aluminum halide co-product which is not tightly complexed to an organic substance.

Abstract: Process for the preparation of silane and a tertiary amine alane, said process comprising reacting:(a) an alkali metal aluminum tetrahydride having the formula MAlH.sub.4, wherein M is an alkali metal selected from the class consisting of lithium, sodium and potassium,(b) silicon tetrachloride, and(c) a complexing tertiary amine, such that the molar proportion of (a) to (b) to (c) is about 4:1:4.In this process, NaAlH.sub.4 and triethylamine are preferred reactants. The amine alane product can be reacted with additional silicon halide to prepare additional silane. This step can be conducted utilizing amine alane in the reaction mixture produced by the process above, and is preferably conducted using SiF.sub.4 as the silicon tetrahalide to produce AlF.sub.3 as a co-product. Both AlF.sub.3 and silane are valuable articles of commerce.

Abstract: A process for making a dry metal halide salt which will not form an insoluble flocculent material upon dissolving in water in which an initial aqueous solution of a metal halide salt is prepared and a member selected from the group consisting of ammonium chloride, ammonium bromide, borate anion producing compounds and mixtures thereof is added. Water is then evaporated from the initial aqueous solution and a dry metal halide salt is obtained. Upon dissolving this dry metal halide salt in water a clear, colorless solution results which does not contain an insoluble flocculent material. Alternatively, the member compound may be added to the dry metal halide salt, before it is dissolved in water or the member compound may be added to the water which is used to dissolve the dry metal halide salt.

Abstract: Process for the preparation of silane and a tertiary amine alane, said process comprising reacting about equimolar amounts of:(a) an alkali metal aluminum tetrahydride having the formula MAlH.sub.4, wherein M is an alkali metal selected from the class consisting of lithium, sodium and potassium,(b) a hydrogen halide, and(c) a complexing tertiary amine.In this process, NaAlH.sub.4, HCl, and (C.sub.2 H.sub.5).sub.3 N are preferred reactants. The amine alane product can be reacted with a silicon halide to prepare silane.

Abstract: Amine alane decomposition is catalyzed by titanium. This effect of titanium can be suppressed by treating it with a passivating agent such as air, nitrous oxide, carbon monoxide and alkyl nitrites. Such agents may be used (1) to treat titanium-containing NaAlH.sub.4 preparations to be used in preparing amine alanes, or (2) to treat amine alanes containing titanium as an impurity, e.g. in finely divided form. Furthermore, the reaction of NaAlH.sub.4, amine, and a halide substance to produce an amine alane can be conducted in the presence of a passivating agent.

Abstract: A process for producing silane by reacting a silicon halide with highly reactive magnesium and a cyclic process for producing silane by reacting magnesium hydride with a silicon halide, reacting the magnesium halide as formed with an alkali metal to recover elemental magnesium, and pressure hydrogenating said magnesium to form magnesium hydride and repeat the cycle. A highly reactive magnesium hydride is formed by the homogeneously catalyzed pressure hydrogenation of magnesium, preferably using an activated transition metal catalyst such as TiCl.sub.4 and a polycyclic organic compound such as anthracene. The highly activated magnesium hydride is thereafter used for reaction with silicon halide to produce silane.

Abstract: A process for producing complexes of alane and tertiary amines. Sodium aluminum tetrahydride is reacted with sodium aluminum tetrachloride in the presence of a tertiary amine in an aromatic hydrocarbon reaction medium that is not a solvent for either of the reactants. The tertiary amine alane reaction products are typically soluble in the hydrocarbon reaction medium and readily recoverable.

Abstract: A process for the production of high purity silane by reacting silicon tetrafluoride exclusively with sodium aluminum tetrahydride, potassium aluminum tetrahydride, or a mixture of sodium aluminum tetrahydride and potassium aluminum tetrahydride, preferably in an inert liquid reaction medium comprising an ether. The inventive process is a highly advantageous and economical route to silane since it also produces valuable fluoride salt.