Utilization of Me3SiSnBu3 in organic synthesis. Generation of o-quinodimethane from α,α'-dibromo-o-xylene and Me3SiSnBu3-CsF

Article abstract of DOI:10.1016/S0040-4039(00)73042-5

The reaction of α,α'-dibromo-o-xylene with stannyl anion generated from Me₃SiSnBu₃ and CsF or TASF [(Et₂N)₃S⁺SiMe₃F₂^-] in the presence of dienophiles afforded the [4 + 2] cyclization products in good to moderate yields.