OLAH, GEORGE A.;WU, AN-HSIANG, SYNTHESIS,(1990) N0, C. 885-886
作者:OLAH, GEORGE A.、WU, AN-HSIANG
DOI:——
日期:——
Preparation of Crowded Olefins. Neopentylidenation of Polycycloalkanones by Wittig Dibromomethylenation Followed by Reaction with<i>tert</i>-Butyllithium
作者:George A. Olah、An-hsiang Wu
DOI:10.1055/s-1990-27042
日期:——
A novel preparation of crowded olefins by neopentylidenation of polycycloalkanes is reported. The corresponding polycycloalkanones are first converted into their dibromomethylene derivatives via carbon tetrabromide/triphenylphosphine. Subsequent treatment with tert-butyllithium affords the desired neopentylidenepolycycloalkanes in good yield.