کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1255682 971435 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate: Halogen-free and single-component catalysts for the coupling reaction of carbon dioxide and epichlorohydrin
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate: Halogen-free and single-component catalysts for the coupling reaction of carbon dioxide and epichlorohydrin
چکیده انگلیسی

The green synthesis of chloropropylene carbonate via the coupling reaction of carbon dioxide and epichlorohydrin had been achieved using halogen-free and single-component catalysts tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate [(n-C4H9)4N]3H7GeW9M3(H2O)3O37 (M = CuII, NiII, CoII and MnII) without any solvent. The catalytic activity was significantly depended on the transition metal introduced in polyoxometalates. [(n-C4H9)4N]3H7GeW9Mn3(H2O)3O37 exhibited the highest catalytic activity with 94.9% conversion for epichlorohydrin and 98% selectivity for chloropropylene carbonate in 3 h. Plausible mechanism was proposed based on the results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 22, Issue 7, July 2011, Pages 871–874
نویسندگان
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