Merrifield resin supported phenanthroline-Cu(I): a highly efficient and recyclable catalyst for the synthesis of 2-aminobenzothiazoles via the reaction of 2-haloanilines with isothiocyanates |
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| Authors: | Jin YangPinhua Li Lei Wang |
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| Institution: | a Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, PR China
b State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, PR China |
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| Abstract: | A novel Merrifield resin supported phenanthroline-Cu(I) complex has been developed and used as a highly efficient and recyclable catalyst in the reaction of 2-halobenzenamines with isothiocyanates for the synthesis of 2-aminobenzothiazoles. The reactions were applicable to a variety of 2-halobenzenamines and isothiocyanates, and generated the corresponding 2-aminobenzothiazoles in good yields under mild reaction conditions. Moreover, the catalyst was quantitatively recovered from the reaction mixture by a simple filtration and reused for ten cycles with almost consistent activity. |
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| Keywords: | 2-Aminobenzothiazoles Phenanthroline-Cu(I) complex Immobilized catalyst Tandem reaction Recyclability |
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