Synthesis of Biphenylenes and Their π-Extended Derivatives
作者:Ming-Lun Pan、Yao-Ting Wu
DOI:10.1055/s-0039-1690750
日期:2020.1
A series of biphenylenes and their π-extended derivatives are easily prepared through tert-butyllithium-mediated cyclization of suitable halobiaryls and haloteraryls, respectively. The reactions proceed via the corresponding arynyl intermediates at low temperature (up to –20 °C).