Air-stable heterobimetallic catalysts to effect Ni/Cr-mediated couplings with a ca. 1:1 molar ratio of coupling partners at low catalyst loadings |
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Authors: | Peng Jianbiao Kishi Yoshito |
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Affiliation: | Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA. |
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Abstract: | Two air-stable Ni,Cr-heterobimetallic catalysts have been prepared from ligands 7 and 11, obtained from scyllo-inositol in four and three steps, respectively. Both catalysts smoothly promote Ni/Cr-mediated coupling reactions with a ca. 1:1 molar ratio of coupling partners. The catalyst derived from 11 exhibits a better catalytic profile, thereby allowing Ni/Cr-mediated coupling reactions to be achieved with a wide range of substrates at a low catalyst loading in an operationally simple manner. |
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