Intramolecular Diels–Alder reactions of α,β-unsaturated oxime ethers as 1-azadienes: synthesis of [c]-fused pyridines
作者:Timothy E. Hurst、Timothy J. Miles、Christopher J. Moody
DOI:10.1016/j.tet.2007.09.090
日期:2008.1
The intramolecular hetero-Diels–Alder reaction of α,β-unsaturated oxime ethers as the diene with acetylenic dienophiles, readily prepared from salicylaldehyde derivatives, is described as a rapid and versatile route to [c]-annelated pyridines in modest to good yields.
α,β-不饱和肟醚(如二烯)与乙炔二烯亲生体的分子内杂狄尔斯-阿尔德反应(由水杨醛衍生物容易制得)被描述为以适度到良好收率制备[ c ]-退火吡啶的快速通用途径。