Method for producing alkali metal monohydridoborates and monohydridoaluminates
AssigneeChemetall GmbH
InventorsUlrich Wietelmann, Dieter Hauk, Andre Majdalani, Uwe Lischka
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Abstract
The invention relates to a method for producing compounds of general formula (A) by reacting an alkali metal hydride with a compound (B) during which the reaction is carried out in the presence of a catalyst that contains boron, whereby: M represents Li, Na, K, Rb or Cs; E represents B or Al, and; X1, X2, X3, independent of one another, represent a secondary or tertiary alkyl group, which is comprised of 2 to 10 atoms, or represent a phenyl group which itself can be alkyl-substituted or they represent an alkoxy group, and the catalyst, which contains boron, or the conversion product thereof with MH is capable of acting as a hydride transfer agent.
Claims12
A process for the preparation of compounds of the formula:
- comprising reacting an alkali metal hydride with a compound of formula (B):
- in the presence of a boron-containing catalyst;
- wherein
- M is Li, Na, K, Rb or Cs;
- and
- E is B or Al;
- and
- X1, X2, X3=are each independently
- a 2 C to 10 C secondary or tertiary alkyl group or
- a phenyl group, which can be alkyl-substituted, or
- an alkoxy group;
- and wherein
- the boron-containing catalyst contains the structural unit BH3 and the boron-containing catalyst or reaction product thereof with MH being capable of acting as a hydride transfer agent.
Dependencies are inferred from the claim text.