Preparation of amine alane complexes

Claim 2

A process for preparing amine alane complexes comprising reacting: (a) about p mole parts M(AlX 4 ) n wherein X is Cl or Br, M is alkali metal or alkaline earth metal, n is 1 and p is 1 when M is alkali metal or n is 2 and p is 0.5 when M is alkaline earth metal; and (b) about q mole parts L(AlH 4 ) r wherein L is alkali metal or alkaline earth metal, q is 3 and r is 1 when L is alkali metal or q is 1.5 and r is 2 when L is alkaline earth metal; in the presence of (c) about 4 mole parts of a complexing tertiary amine in a liquid reaction medium selected from innocuous hydrocarbons and tertiary amines nonsolvent for reactants (a) and (b); thereby forming a complex of said tertiary amine and AlH 3 .

Claim 3

The process of claim 1 wherein said liquid reaction medium is an innocuous hydrocarbon and said hydrocarbon is an aromatic hydrocarbon.

Claim 4

A process for producing amine alane complexes comprising reacting a tetrahalide of the formula MAlX 4 wherein X is Br or Cl and M is alkali metal with an alkali metal aluminum tetrahydride in the presence of a complexing tertiary amine in a liquid reaction medium selected from innocuous hydrocarbons and tertiary amines not a solvent for said tetrahalide or said alkali metal aluminum tetrahydride, thereby forming a tertiary amine.AlH 3 complex.

Claim 5

A process for producing amine alane complexes comprising reacting a tetrahalide of the formula MAlX 4 wherein X is Br or Cl and M is alkali metal with an alkali metal aluminum tetrahydride in the presence of a complexing tertiary amine in a liquid reaction medium selected from innocuous hydrocarbons and tertiary amines not a solvent for said tetrahalide or said alkali metal aluminum tetrahydride, thereby forming a tertiary amine.AlH 3 complex.

Claim 6

A process for producing amine alane complexes comprising reacting a tetrahalide of the formula MAlX 4 wherein X is Br or Cl and M is alkali metal with an alkali metal aluminum tetrahydride in the presence of a complexing trialkylamine in a liquid reaction medium selected from innocuous hydrocarbons and tertiary amines not a solvent for said tetrahalide or said alkali metal aluminum tetrahydride and forming a trialkylamine.AlH 3 complex.

Claim 7

A process for producing amine alane complexes comprising reacting a tetrahalide of the formula MAlX 4 wherein X is Br or Cl and M is alkali metal with an alkali metal aluminum tetrahydride in the presence of a complexing trialkylamine in a liquid reaction medium selected from innocuous hydrocarbons and tertiary amines not a solvent for said tetrahalide or said alkali metal aluminum tetrahydride and forming a trialkylamine.AlH 3 complex.

Claim 8

A process for preparing amine alane complexes comprising reacting: (a) about p mole parts M(AlX 4 ) n wherein X is Cl or Br, M is alkali metal or alkaline earth metal, n is 1 and p is 1 when M is alkali metal or n is 2 and p is 0.5 when M is alkaline earth metal; and (b) about q mole parts L(AlH 4 ) r wherein L is alkali metal or alkaline earth metal, q is 3 and r is 1 when L is alkali metal or q is 1.5 and r is 2 when L is alkaline earth metal; in the presence of (c) about 4 mole parts of a complexing trialkylamine in a liquid reaction medium selected from innocuous hydrocarbons and tertiary amines nonsolvent for the reactants (a) and (b); thereby forming a complex of said trialkylamine and AlH 3 .

Claim 9

A process for preparing amine alane complexes comprising reacting: (a) about p mole parts M(AlX 4 ) n wherein X is Cl or Br, M is alkali metal or alkaline earth metal, n is 1 and p is 1 when M is alkali metal or n is 2 and p is 0.5 when M is alkaline earth metal; and (b) about q mole parts L(AlH 4 ) r wherein L is alkali metal or alkaline earth metal, q is 3 and r is 1 when L is alkali metal or q is 1.5 and r is 2 when L is alkaline earth metal; in the presence of (c) about 4 mole parts of a complexing trialkylamine in a liquid reaction medium selected from innocuous hydrocarbons and tertiary amines nonsolvent for the reactants (a) and (b); thereby forming a complex of said trialkylamine and AlH 3 .

Claim 10

The process of claim 4 wherein said liquid reaction medium is an innocuous hydrocarbon.

Claim 11

The process of claim 6 wherein said innocuous hydrocarbon is an aromatic hydrocarbon.

Claim 12

The process of claim 7 wherein said aromatic hydrocarbon is toluene.

Claim 13

The process of claim 5 wherein M is alkali metal.

Claim 14

The process of claim 9 wherein said alkali metal is sodium.

Claim 15

The process of claim 10 wherein X is Cl.

Claim 16

The process of claim 2 wherein said aromatic hydrocarbon is toluene.

Claim 17

The process of claim 1 wherein M is alkali metal.

Claim 18

The process of claim 13 wherein said alkali metal is sodium.

Claim 19

The process of claim 14 wherein X is Cl.

Claim 20

The process of claim 1 wherein X is Cl.

Claim 21

The process of claim 1 wherein the said tertiary amine forms a complex with AlH 3 that is soluble in said hydrocarbon.

Claim 22

The process of claim 17 wherein said hydrocarbon is toluene.

Claim 23

The process of claim 5 wherein said trialkylamine is triethylamine.

Claim 24

The process of claim 5 wherein said reacting is carried out at about 0°-100° C.

Claim 25

The process of claim 5 wherein said liquid reaction medium is a tertiary amine.

Claim 26

The process of claim 3 wherein said liquid reaction medium is an aromatic hydrocarbon.

Claim 27

The process of claim 22 wherein said complexing tertiary amine is triethylamine.

Claim 28

The process of claim 33 wherein NaAlCl 4 is reacted with NaAlH 4 .

Claim 29

The process of claim 5 wherein said complexing tertiary amine is triethylamine.

Claim 30

The process of claim 25 wherein said liquid reaction medium is toluene.

Claim 31

The process of claim 26 wherein about one mole part NaAlCl 4 is reacted with about three mole parts NaAlH 4 in the presence of at least about four mole parts triethylamine.