A Nonsymmetric Pincer-Type Palladium Catalyst In Suzuki, Sonogashira, and Hiyama Couplings in Neat Water
摘要:
A new PCN palladium pincer complex containing a phosphinoamino group has been synthesized, fully characterized, and applied to Hiyama, copper-free Sonogashira, and Suzuki cross-coupling reactions performed in water. The use of the latter catalyst provides competitive yields, catalyst loadings, and reaction media.
A Nonsymmetric Pincer-Catalyzed Suzuki−Miyaura Arylation of Benzyl Halides and Other Nonactivated Unusual Coupling Partners
摘要:
The catalytic activity of a PCN-type palladium pincer complex is evaluated in the construction of C(sp(2))-C C(sp(2)) and C(sp(2))-C(sp(3)) bonds by Suzuki-Miyaura cross-couplings employing nontypical subs such as benzyl halides, alpha-haloenones, or alkylboronic acids as coupling partners. Most of the reported reactions are achieved in aqueous media, with all of the advantages implied.