The oxidative cross-coupling of substituted 2-naphthols, part I: The scope and limitations
作者:Martin Hovorka、Radim Ščigel、Jana Gunterová、Miloš Tichý、Jiří Závada
DOI:10.1016/s0040-4020(01)88318-6
日期:1992.1
Highly selective oxidative cross-coupling of differently substituted 2-naphthols mediated by Cu(II)-tert-butyl amine complexes is described. The “cross”-products are obtained in good to excellent yields and the selectivity up to ⪢90% is observed depending on the substitution of naphthol nuclei. The alternative procedures - the cross-coupling of free naphthols with CuCl(OMe) as well as the coupling
描述了由Cu(II)-叔丁胺络合物介导的不同取代的2-萘的高选择性氧化交叉偶联。获得“交叉”产物的收率好至极好,并且根据萘酚核的取代,观察到高达⪢90%的选择性。还研究了替代程序-游离萘与CuCl(OMe)的交叉偶联以及萘甲酸钠与无水氯化铜(II)的偶联-。所有这些方法使对不对称取代的联萘酚的简单且高收率的获取成为可能。报道了通过在三乙酰纤维素上的液相色谱法成功地光学拆分了2,2'-二羟基-1,1'-联萘-3-羧酸甲酯,并随后与已知绝对构型的联萘酚衍生物进行了构型相关性。