Chiral gold(I) phosphite complexes are readily prepared modularly from 3,3′-bis(triphenylsilyl)-1,1′-bi-2-naphthol. These chiral gold(I) phosphite complexes are very reactive precatalysts for the [4+2] cycloaddition of aryl-substituted 1,6-enynes with enantiomeric ratios ranging from 86 : 14 up to 94 : 6.
手性
金(I)
亚磷酸酯配合物可从3,3′-双(三苯基甲
硅烷基)-1,1′-双-
2-萘酚模块化地制备。这些手性
金(I)
亚磷酸酯配合物是极为活泼的前催化剂,可用于带有取代基的芳基-1,6-烯炔的[4+2]环加成反应,其对映选择性比值从86 : 14至94 : 6不等。