Metallization of 1-substituted 1-benzyl-o-carboranes with n-butyllithium and some conversions of 1-R-2-benzyllithium-o-carboranes
摘要:
It was shown that 1-R-2-benzyl-o-carboranes (R = Me, i-Pr, Ph, PhCH2) and other derivatives of o-carborane containing an ArCH2 group in positions 1 and 2 are readily metallized by n-butyllithium, forming the corresponding benzyllithium derivatives, which react with electrophilic reagents like the usual organolithium compounds, permitting the synthesis of various C-substituted 1-o-carboranes.
Metallization of 1-substituted 1-benzyl-o-carboranes with n-butyllithium and some conversions of 1-R-2-benzyllithium-o-carboranes
摘要:
It was shown that 1-R-2-benzyl-o-carboranes (R = Me, i-Pr, Ph, PhCH2) and other derivatives of o-carborane containing an ArCH2 group in positions 1 and 2 are readily metallized by n-butyllithium, forming the corresponding benzyllithium derivatives, which react with electrophilic reagents like the usual organolithium compounds, permitting the synthesis of various C-substituted 1-o-carboranes.
Synthesis of the first stable carborane containing simple enol
作者:L. I. Zakharkin、V. A. Ol'shevskaya、G. G. Zhigareva
DOI:10.1007/bf01434241
日期:1996.6
A carborane-containing stable simple enol — 1-2-isopropyl-o-carboran-I-yl)-1-phenyl2-mesityl-2-lrydroxyctlrylcne — has been synthesized. This enol does not isomerize to the starting ketone or keto-enol mixture even after prolonged heating in benzene in the presence of CF3COOH.