Tetrahedron Letters p. 897 - 900 (1996)
Update date:2022-07-30
Topics: Water Iodoarenes Diaryliodonium salts Catalytic coupling Terminal acetylenes
Bumagin, Nikolai A.
Sukhomlinova, Ludmila I.
Luzikova, Elena V.
Tolstaya, Tatiana P.
Beletskaya, Irina P.
The catalytic coupling of terminal acetylenes with iodoarenes and diaryliodonium salts are shown to occur in aqueous K2CO3 in the presence of 10 mol.% Bu3N under very mild conditions using PdCl2(PPh3)2 and CuI as catalyst precursor to give substituted tolans in high yields.
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