作者:José Méndez-Andino、Leo A. Paquette
DOI:10.1021/ol000325k
日期:2000.12.1
of organocopper reagents to alpha, beta-unsaturated enones results in the regiospecific generation of enolate anions, which can be made to undergo the aldol reaction with (tetrahydropyranyloxy)acetaldehyde under zinc chloride catalysis. Treatment of the resulting product with p-toluenesulfonic acid in THF affords the targeted 2,3-disubstituted furan.
有机铜试剂与α,β-不饱和烯酮的共轭加成导致区域特异性生成烯醇酸根阴离子,可使其在氯化锌催化下与(四氢吡喃基氧基)乙醛发生羟醛反应。在THF中用对甲苯磺酸处理所得产物,得到目标2,3-二取代的呋喃。