Aryne‐Based Synthesis of Cyclobutadiene‐Containing Oligoacenes and Related Extended Biphenylene Derivatives
作者:Berta Álvarez、Jesús Janeiro、Agustín Cobas、Manuel A. Ortuño、Diego Peña、Enrique Guitián、Dolores Pérez
DOI:10.1002/adsc.202301264
日期:2024.2.20
19 Our renewed interest in PCHs containing four-membered rings led us to plan the synthesis of π-extended derivatives, including CBD-containing oligoacenes, by means of cycloaddition reactions of a benzobiphenylene-based aryne building block, 2,3-didehydrobenzo[b]biphenylene (1), accessed from its Kobayashi-type aryne precursor20 2 (Scheme 1). Here we report the results of our synthetic study, and the