Novel dienes from α-ylidene and α-alkoxylidene lactones. Useful intermediates for the synthesis of benzofurans
作者:Alistair W. Murray、Neil D. Murray、Robert G. Reid
DOI:10.1039/c39860001230
日期:——
Novel dienes, formed by reaction of α-ylidene and α-alkoxylidene lactones with the lithium salt of acetonitrile, are readily converted into benzofuran precursors by a highly regioselective (and in the case of the former derivatives) a highly stereoselective Diels–Alder reaction.
由α-亚烷基和α-烷氧基亚内酯与乙腈的锂盐反应形成的新型二烯,通过高度区域选择性(对于以前的衍生物而言)和高度立体选择性的Diels-Alder反应,很容易转化为苯并呋喃前体。