Jk. Brask et al., TRAPPING OF N-BUTYLLITHIUM DIMER BY A TRILITHIATED DERIVATIVE OF (AL[N(H)BU-T](3))(2), Chemical communications, (22), 1998, pp. 2543-2544
The reaction of {Al[N(H)Bu-t](3)}(2), obtained as a 1 : 2 mixture of c
is and trans isomers from the addition of AlCl3 to three equiv. LiN(H)
Bu-t in diethyl ether, with LiBun generates a complex in which a dimer
ic n-butyllithium fragment is trapped by the trilithiated derivative L
i3Al2[N(H)Bu-t](3)[N-Bu-t](3).