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首页> 外文期刊>Organic letters >Pd-catalyzed cross-coupling of α-(acyloxy)-tri-n -butylstannanes with alkenyl, aryl, and heteroaryl electrophiles
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Pd-catalyzed cross-coupling of α-(acyloxy)-tri-n -butylstannanes with alkenyl, aryl, and heteroaryl electrophiles

机译:Pd催化α-(酰氧基)-三正丁基锡烷与烯基,芳基和杂芳基亲电子试剂的交叉偶联

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摘要

Racemic and scalemic α-(acyloxy)-tri-n-butylstannanes undergo Pd-catalyzed cross-couplings with alkenyl/aryl/heteroaryl iodides, bromides, and triflates in moderate to good yields in THF at 45 °C. Simple aryl iodides and unprotected aza-arenes, two classes of electrophiles that typically react sluggishly, are also good substrates. Cross-couplings proceed with retention of configuration at the alkenyl and stannyl-substituted stereocenters.
机译:外消旋体和垢体α-(酰氧基)-三正丁基锡烷在45°C下的THF中以中等至良好的收率进行Pd催化的链烯基/芳基/杂芳基碘化物,溴化物和三氟甲磺酸酯的交叉偶联反应。简单的芳基碘化物和未保护的氮杂芳烃是两类通常缓慢反应的亲电试剂,也是良好的底物。交叉偶联继续保持烯基和甲炔基取代的立体中心的构型。

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