Synthesis and reactivity of the 1,1-dilithio derivatives of alkyl phenyl sulfones and N,N-dimethyl methanesulfonamide
作者:A. Bongini、D. Savoia、A. Umani-Ronchi
DOI:10.1016/s0022-328x(00)89360-2
日期:1976.5
Alkylphenyl sulfones Ia,b and N,N-dimethyl methanesulfonamide (Ic) are rapidly converted into their 1,1-dilithio salts IIa–c on reaction with n-butyllithium in THF—hexane. The nature of these new organometallicspecies was confirmed by deuteration and condensation with benzaldehyde. The gem-dimetallo derivatives Va–c and VIa, obtained from IIa–c by lithium—magnesium and lithium—boron exchange respectively