کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6530793 48407 2013 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Asymmetric hydrogenation of methyl pyruvate in the continuous gas phase using Supported Ionic Liquid Phase (SILP) catalysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Asymmetric hydrogenation of methyl pyruvate in the continuous gas phase using Supported Ionic Liquid Phase (SILP) catalysis
چکیده انگلیسی

- The asymmetric reduction of the α-keto ester methyl pyruvate in continuous-flow, gas phase reaction using Supported Ionic Liquid Phase (SILP) catalysis is demonstrated.
- Different support materials, ligands and ionic liquids were screened to identify an optimized Ru-based SILP catalyst.
- With Ru-BINAP dissolved in the ionic liquids 3-hydroxypropylpyridinium bis(trifluoromethylsulfonyl)imide on silica 100 a stable catalyst performance could be obtained for more than 50 h time-on-stream.
- At 95 °C and with a residence time in the reactor of less than 3 s a stable product yield of 80-84% was obtained with moderate but stable enantiomeric excess of 26-30%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 376, September 2013, Pages 103-110
نویسندگان
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