Coupling of aryltaannanes to 2-phenyliodonio-1,4-naphthoquinone-3-oxide in the presence of a tetrakis(triphenylphosphine)palladium(0)-cuprous iodide catalyst yields 3-aryl-2-hydroxy-1,4-naphthoquinones which are converted to the corresponding 3-aryl-2-trifluoromethanesulfonyloxy-1,4-naphthoquinone and coupled to a different arylstannane to yield unsymmetrical 2,3-diaryl-1,4-naphthoquinones in good
在四(
三苯基膦)
钯(0)-
碘化亚铜催化剂存在下,芳基
金刚烷与2-苯基
碘代-
1,4-萘醌-3-氧化物的偶合反应生成3-芳基-
2-羟基-1,4-萘醌转化为相应的3-芳基-2-三
氟甲磺酰氧基-1,4-
萘醌,并偶联到不同的芳基
锡烷上,以良好的收率得到不对称的2,3-二芳基-1,4-
萘醌。©1997爱思唯尔科学有限公司。