The superiority of properly prepared lithium 1-N,N-dimethylaminonaphthalenide (LDMAN) over other aromatic radical-anions for the generation of organolithiums by reductive lithiation
作者:Roman Ivanov、Ilan Marek、Theodore Cohen
DOI:10.1016/j.tetlet.2009.10.121
日期:2010.1
the far more widely used lithium p,p′-di-tert-butylbiphenylide (LDBB) in reductivelithiations by aromaticradical-anions to produce organolithium compounds, provided that careful temperature control is maintained during the generation of LDMAN. The main reason for the superiority is the great ease of separation of the aromatic byproduct dimethylaminonaphthalene by a dilute acid wash.