Pd-Catalyzed Decarboxylative Coupling of Propiolic Acids: One-Pot Synthesis of 1,4-Disubstituted 1,3-Diynes via Sonogashira−Homocoupling Sequence
作者:Jihye Park、Eonjeong Park、Aejin Kim、Seul-A Park、Youngil Lee、Ki-Whan Chi、Young Hoon Jung、In Su Kim
DOI:10.1021/jo200096x
日期:2011.4.1
One-potsynthesis of symmetric 1,4-disubstituted 1,3-diynes from iodoarenes and propiolic acid via Sonogashira reaction followed by Pd-catalyzed decarboxylative homocoupling is developed in high yields. Also, this system allows the one-potsynthesis of unsymmetric 1,4-disubstituted 1,3-diynes by cross-coupling of two different 3-substituted propiolic acids.