Anchored Pd complex in MCM-41 and MCM-48: novel heterogeneous catalysts for hydrocarboxylation of aryl olefins and alcohols.
Anchored Pd complex in MCM-41 and MCM-48: novel heterogeneous catalysts for hydrocarboxylation of aryl olefins and alcohols.
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DOI：
10.1021/ja025991q
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发表时间：
2002-07
影响因子：
15
通讯作者：
Kausik Mukhopadhyay;Bibhas R. Sarkar;R. V. Chaudhari
中科院分区：
文献类型：
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作者：
Kausik Mukhopadhyay;Bibhas R. Sarkar;R. V. Chaudhari
在这里，我们报告，第一次，锚定的Pd配合物在介孔载体，如MCM-41和MCM-48的合成作为真正的非均相催化剂的芳基烯烃和醇的加氢羧化反应，得到优良的转化率（约100%）和区域选择性（约99%）为2-芳基丙酸。采用粉末XRD、~（31）P CP-MAS NMR、FT-IR、TEM、XPS和ICP-AES等手段对催化剂进行了表征。用这些锚定的Pd介孔催化剂进行再循环研究以确认真正的异质性。
We report here, for the first time, synthesis of anchored Pd complexes in mesoporous supports such as MCM-41 and MCM-48 as true heterogeneous catalysts for hydrocarboxylation of aryl olefins and alcohols to give excellent conversion ( approximately 100%) and regioselectivity ( approximately 99%) for 2-arylpropionic acids. The catalysts were characterized by powder-XRD, 31P CP-MAS NMR, FT-IR, TEM, XPS and ICP-AES. Recycle studies with these anchored Pd mesoporous catalysts were performed to confirm true heterogeneity.