Crystal structure of [2,6-bis(dimethylamino)phenyl]lithium: the first trimeric organolithium compound.
In: Organometallics, Jg. 8 (1989) ; Nr. 7, S. 1696-1700
Zeitschriftenaufsatz / Fach: Chemie
The title compd. (I) was prepd. in 70% yield by lithiation of 1,3-(Me2N)2C6H4 with BuLi. The x-ray structure of I reveals the first trimeric organolithium species. This trimer is retained in apolar solvents like benzene or toluene. From NMR data a monomer-trimer equil. is proposed in THF soln.