Prodn of non-substituted sodium aluminium hydride

摘要

Hydrides having the formula Na1+nA1H1+n (in which n is 0 or 2) are prepd. by reacting in a aprotic solvent (esp. hydrocarbons and ethers) under anhydrous conditions and a superatmospheric pressure of H2, Al and Na or NaH in the presence of NaZ, NaAlZ4, AlHZ2, AlH2Z AlZ3NaA1HyZ4-y and HZ (in which y is 1,2 or 3 and Z is an organic residue derived by splitting an active H-atom from (a) ether alcohols obtained by alkylation of one OH group in diols H OR' OH where R' is a divalent hydrocarbon (b) polyether alcohols obtained by alkylation of one OH group in polyglycols obtained by intermolecular dehydration of diols H OR' OH (c) amino-alcohols R2N(CmH2mOH) where R is alkyl and m is an integer from 1 to 15 and (d) tetrahydrofurfuryl alcohols or oxyalkanols.