One-pot three-component regioselective synthesis of linear naphtho[2,3-b]-furan-4,9-diones
作者:Mohammad Bagher Teimouri、Hamid Reza Khavasi
DOI:10.1016/j.tet.2007.07.082
日期:2007.10
The regioselective three-component condensation reaction of 2-hydroxy-1,4-naphthoquinone with isocyanides in the presence of a variety of aldehydes offers an easy one-pot access to linear naphtho[2,3-b]-furan-4,9-dione derivatives. This method has the advantage of good yields, high regioselectivity, and uses readily accessible substrates and reagents. The elucidation of regiochemistry has been accomplished
在多种醛类存在下,2-羟基-1,4-萘醌与异氰酸酯的区域选择性三组分缩合反应提供了一个简单的一锅式直链萘[2,3 - b ]-呋喃-4,9通道。 -二酮衍生物。该方法具有收率高,区域选择性高的优点,并使用容易获得的底物和试剂。区域化学的阐明已通过X射线测定某些代表性化合物来完成。