Silver-catalyzed tandem nucleophilic addition/cycloisomerization of ortho-alkynylbenzaldehydes: Regioselective synthesis of functionalized 1H-isochromene derivatives
2017
Li, Fang-Hui | Li, Jian | Wang, Shun-Yi | Ji, Shun-Jun
An efficient silver-catalyzed domino cycloisomerization reaction for regioselective assembly of 1H-isochromene derivatives from o-alkynylaryl aldehydes with enaminones as the external nuclephiles is developed. This protocol affords isochromene derivatives in moderate to good yields under simple and mild reaction conditions.
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