期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 22, 期 50, 页码 18147-18155出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201603557
关键词
atom economical; bifunctional catalysis; catalysis; C-C bond formation; ruthenium
资金
- Science and Engineering Research Board, India
- Council of Scientific and Industrial Research, New Delhi
- Indian Institute of Technology Kanpur
- UGC, India
Catalytic activities of a series of functional bipyridine-based Ru-II complexes in beta-alkylation of secondary alcohols using primary alcohols were investigated. Bifunctional Ru-II complex (3a) bearing 6,6'-dihydroxy-2,2'-bipyridine (6DHBP) ligand exhibited the highest catalytic activity for this reaction. Using significantly lower catalyst loading (0.1 mol%) dehydrogenative carbon-carbon bond formation between numerous aromatic, aliphatic and heteroatom substituted alcohols were achieved with high selectivity. Notably, for the synthesis of beta-alkylated secondary alcohols this protocol is a rare one-pot strategy using a metal-ligand cooperative Ru-II system. Remarkably, complex 3a demonstrated the highest reactivity compared to all the reported transition metal complexes in this reaction.
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