PEG-Immobilized Cobalt(II) Schiff Base for Oxidative Dehydrogenation
of Amines

doi:10.1055/s-0030-1260598

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Synfacts 2011(7): 0804-0804
DOI: 10.1055/s-0030-1260598

Polymer-Supported Synthesis

PEG-Immobilized Cobalt(II) Schiff Base for Oxidative Dehydrogenation of Amines

Contributor(s): Yasuhiro Uozumi, Noboru Kobayashi
P. K. Khatri, S. L. Jain*, L. N. Sivakumar K., B. Sain*
Indian Institute of Petroleum, Dehradun, India

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Publication History

Publication Date:
17 June 2011 (online)

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Significance

The PEG-immobilized cobalt(II) complex 4 was prepared by treatment of 1 with propargyl bromide followed by immobilization onto MeOPEG₅₀₀₀ via the copper-catalyzed click reaction with azide 3. The cobalt(II) complex 4 catalyzed the oxidative dehydrogenation of secondary amines 5 to afford the corresponding imines 6 and its hydrolysis products 7 in up to 100% conversion (7 examples).