Condensed heteroaromatic ring systems. XVIII. Palladium-catalyzed cross-coupling reaction of aryl bromides with (Z)-1-ethoxy-2-tributylstannylethene and its utilization for construction of condensed heteroaromatics
作者:Takao Sakamoto、Yoshinori Kondo、Akito Yasuhara、Hiroshi Yamanaka
DOI:10.1016/s0040-4020(01)96100-9
日期:1991.3
The palladium-catalyzed cross-coupling reaction of bromobenzenes or bromoheteroarenes such as pyridine, thiophene, indole with (Z)-1-ethoxy-2-tributylstannylethene gives good yields of the corresponding (Z)-1-ethoxy-2-(aryl and heteroaryl)ethenes. This method is effective for introducing an ethoxyethenyl group into an aromatic and heteroaromatic ring and is proved to have versatile utility for the
钯催化的溴苯或溴杂芳烃(如吡啶,噻吩,吲哚)与(Z)-1-乙氧基-2-三丁基锡烷基苯的钯催化交叉偶联反应可得到相应的(Z)-1-乙氧基-2-(芳基和杂芳基)乙烯。该方法可有效地将乙氧基乙烯基引入芳族和杂芳族环中,并被证明具有广泛的用途,可用于由2-溴苯酚,2-溴苯胺和2-溴苯甲酸酯衍生物构建苯并[ b ]呋喃,吲哚,异香豆素环。 。