Journal of Organometallic Chemistry p. 285 - 290 (1989)
Update date:2022-08-03
Topics:
Okamoto, Yuzo
Yoshioka, Katsuaki
Yamana, Tsuyoshi
Mori, Hiroshi
The reaction of organozinc halides RZnX (R=Bu, Ph; X=Cl, Br) with m- and p-bromoacetophenones in the presence of PdCl2(PPh3)2 in THF/HMPA (THF=tetrahydrofuran; HMPA=N,N,N',N',N'',N''-hexamethylphosphoric triamide) takes place chemoselectively to give the corresponding m- and p-R-substituted acetophenones in high yields.Similarly reaction of RZnX with p-bromobenzaldehyde also proceeds chemoselectively to give the p-R-substituted benzaldehyde in good yields.
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