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• W2319325754 endingPage "7316" @default.
• W2319325754 startingPage "7300" @default.
• W2319325754 abstract "Despite widespread use of complexes of the type Pd(L)(η(3)-allyl)Cl as precatalysts for cross-coupling, the chemistry of related Pd(I) dimers of the form (μ-allyl)(μ-Cl)Pd2(L)2 has been underexplored. Here, the relationship between the monomeric and the dimeric compounds is investigated using both experiment and theory. We report an efficient synthesis of the Pd(I) dimers (μ-allyl)(μ-Cl)Pd2(IPr)2 (allyl = allyl, crotyl, cinnamyl; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) through activation of Pd(IPr)(η(3)-allyl)Cl type monomers under mildly basic reaction conditions. The catalytic performance of the Pd(II) monomers and their Pd(I) μ-allyl dimer congeners for the Suzuki-Miyaura reaction is compared. We propose that the (μ-allyl)(μ-Cl)Pd2(IPr)2-type dimers are activated for catalysis through disproportionation to Pd(IPr)(η(3)-allyl)Cl and monoligated IPr-Pd(0). The microscopic reverse comproportionation reaction of monomers of the type Pd(IPr)(η(3)-allyl)Cl with IPr-Pd(0) to form Pd(I) dimers is also studied. It is demonstrated that this is a facile process, and Pd(I) dimers are directly observed during catalysis in reactions using Pd(II) precatalysts. In these catalytic reactions, Pd(I) μ-allyl dimer formation is a deleterious process which removes the IPr-Pd(0) active species from the reaction mixture. However, increased sterics at the 1-position of the allyl ligand in the Pd(IPr)(η(3)-crotyl)Cl and Pd(IPr)(η(3)-cinnamyl)Cl precatalysts results in a larger kinetic barrier to comproportionation, which allows more of the active IPr-Pd(0) catalyst to enter the catalytic cycle when these substituted precatalysts are used. Furthermore, we have developed reaction conditions for the Suzuki-Miyaura reaction using Pd(IPr)(η(3)-cinnamyl)Cl which are compatible with mild bases." @default.
• W2319325754 created "2016-06-24" @default.
• W2319325754 creator A5037442301 @default.
• W2319325754 creator A5044914316 @default.
• W2319325754 creator A5050677635 @default.
• W2319325754 creator A5062709693 @default.
• W2319325754 creator A5084174089 @default.
• W2319325754 date "2014-05-13" @default.
• W2319325754 modified "2023-10-16" @default.
• W2319325754 title "Insight into the Efficiency of Cinnamyl-Supported Precatalysts for the Suzuki–Miyaura Reaction: Observation of Pd(I) Dimers with Bridging Allyl Ligands During Catalysis" @default.
• W2319325754 cites W1417297170 @default.
• W2319325754 cites W1895834169 @default.
• W2319325754 cites W1967826314 @default.
• W2319325754 cites W1968461723 @default.
• W2319325754 cites W1970945309 @default.
• W2319325754 cites W1971275758 @default.
• W2319325754 cites W1971643970 @default.
• W2319325754 cites W1973923172 @default.
• W2319325754 cites W1974518684 @default.
• W2319325754 cites W1979358023 @default.
• W2319325754 cites W1980473944 @default.
• W2319325754 cites W1983739920 @default.
• W2319325754 cites W1984839013 @default.
• W2319325754 cites W1987073644 @default.
• W2319325754 cites W1991340608 @default.
• W2319325754 cites W1996234179 @default.
• W2319325754 cites W1997159316 @default.
• W2319325754 cites W1997204742 @default.
• W2319325754 cites W2003143283 @default.
• W2319325754 cites W2004867175 @default.
• W2319325754 cites W2007265737 @default.
• W2319325754 cites W2007590674 @default.
• W2319325754 cites W2008197501 @default.
• W2319325754 cites W2009156556 @default.
• W2319325754 cites W2011215428 @default.
• W2319325754 cites W2013760130 @default.
• W2319325754 cites W2015202930 @default.
• W2319325754 cites W2016076296 @default.
• W2319325754 cites W2018296355 @default.
• W2319325754 cites W2024619129 @default.
• W2319325754 cites W2030372214 @default.
• W2319325754 cites W2034275153 @default.
• W2319325754 cites W2039361581 @default.
• W2319325754 cites W2043327592 @default.
• W2319325754 cites W2045273625 @default.
• W2319325754 cites W2046412723 @default.
• W2319325754 cites W2047787055 @default.
• W2319325754 cites W2048630074 @default.
• W2319325754 cites W2049387887 @default.
• W2319325754 cites W2050223520 @default.
• W2319325754 cites W2052908589 @default.
• W2319325754 cites W2055499216 @default.
• W2319325754 cites W2059205366 @default.
• W2319325754 cites W2060304373 @default.
• W2319325754 cites W2060433645 @default.
• W2319325754 cites W2062425152 @default.
• W2319325754 cites W2062650417 @default.
• W2319325754 cites W2063090974 @default.
• W2319325754 cites W2063211189 @default.
• W2319325754 cites W2063549773 @default.
• W2319325754 cites W2065642687 @default.
• W2319325754 cites W2067641534 @default.
• W2319325754 cites W2069453884 @default.
• W2319325754 cites W2073983097 @default.
• W2319325754 cites W2075711294 @default.
• W2319325754 cites W2080925478 @default.
• W2319325754 cites W2081668568 @default.
• W2319325754 cites W2082982782 @default.
• W2319325754 cites W2083790594 @default.
• W2319325754 cites W2085336624 @default.
• W2319325754 cites W2087101798 @default.
• W2319325754 cites W2088242308 @default.
• W2319325754 cites W2093125996 @default.
• W2319325754 cites W2096218508 @default.
• W2319325754 cites W2097156359 @default.
• W2319325754 cites W2097225154 @default.
• W2319325754 cites W2097619214 @default.
• W2319325754 cites W2098869738 @default.
• W2319325754 cites W2102277202 @default.
• W2319325754 cites W2106323995 @default.
• W2319325754 cites W2108407995 @default.
• W2319325754 cites W2110496741 @default.
• W2319325754 cites W2112061711 @default.
• W2319325754 cites W2113985750 @default.
• W2319325754 cites W2119016897 @default.
• W2319325754 cites W2121021891 @default.
• W2319325754 cites W2130010017 @default.
• W2319325754 cites W2130930816 @default.
• W2319325754 cites W2131350133 @default.
• W2319325754 cites W2131914170 @default.
• W2319325754 cites W2133430722 @default.
• W2319325754 cites W2134144045 @default.
• W2319325754 cites W2134428130 @default.
• W2319325754 cites W2139003771 @default.
• W2319325754 cites W2141665100 @default.
• W2319325754 cites W2148831636 @default.
• W2319325754 cites W2150697053 @default.
• W2319325754 cites W2151090182 @default.

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