炔丙醇和芳基异氰在银催化条件下能够发生交叉偶联反应,高产率地生成N-芳基-2,3-联烯酰胺.该反应具有条件温和、原子经济性和底物范围宽泛等优点,多种芳基异腈和炔丙醇均能发生交叉偶联反应,并生成相应的N-芳基-2,3-联烯酰胺.该方法解决了前期工作中异腈种类受限的问题,为合成N-芳基联烯酰胺提供了简便新途径.
A silver-catalyzed cross-coupling of propargylic alcohols and aryl isocyanides to N-aryl-2,3-allenamides has been developed. This reaction is both atom and step economic and applicable to a broad scope of substrates, affording a range of synthetically useful N-aryl-2,3-allenamides in good to high yields under mild conditions. This protocol has successfully solved the problem in our previous report that the isocyanides were limited to active methylene isocyanides, provided an extremely simple way to access the synthetically useful N-aryl-2,3-allenamides.