An Efficient Synthesis of Tetraoxaquaterene Derivatives Starting from 2,2-Difurylpropane
作者:Janusz Jurczak、Robert Pajewski、Ryszard Ostaszewski、Krzysztof Ziach、Artur Kulesza
DOI:10.1055/s-2004-815979
日期:——
Four non-symmetric tetraoxaquaterenes (5, 6, 8, and 9) and two cyclic hexamers 11 and 13 were efficiently prepared via the condensation reaction of furyl precursors 3 and 4 with various ketones, catalysed by 90.5% sulfuric acid.
四种非对称的四氧四烯(5, 6, 8和9)以及两个环状六聚体11和13通过酚基前体3和4与不同酮的缩合反应高效合成,反应由90.5%的硫酸催化。