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For substrate 1b, the isomeric products were separated by column chromatography and analyzed by 1D NOE experiments (see the Supporting Information). The cis/trans-addition ratios for all other substrates were assigned based on analogous chemical shifts in the crude 1H NMR spectra
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1H NMR spectra.
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84920286621
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The cis/ trans nomenclature for cyclized products 2 reflects the apparent nature of the carbopalladation step. In all cases (except for 2u), the olefin geometries of cis-2 and trans-2 are E and Z, respectively
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The cis/ trans nomenclature for cyclized products 2 reflects the apparent nature of the carbopalladation step. In all cases (except for 2u), the olefin geometries of cis-2 and trans-2 are E and Z, respectively.
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Refer to the Supporting Information for further experimental details
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Refer to the Supporting Information for further experimental details.
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84920271324
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At catalyst loadings of 7.5 mol%[Pd], a lower selectivity for cis-2e was observed (88:12 cis/trans) compared to 5.0 mol% [Pd] loading (see SI for details)
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At catalyst loadings of 7.5 mol%[Pd], a lower selectivity for cis-2e was observed (88:12 cis/trans) compared to 5.0 mol% [Pd] loading (see SI for details).
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35
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84920288105
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CCDC 1024942 (cis-2c), 1024943 (cis-2p), and 1024944 (trans-2p) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via
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CCDC 1024942 (cis-2c), 1024943 (cis-2p), and 1024944 (trans-2p) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac. uk/data-request/cif.
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