Shape-Selective Alkylation of Biphenyl over H-[Al]-SSZ-24 Zeolites with AFI Topology

• Ito, Akira

• Maekawa, Hiroyoshi

• Kawagoe, Hiroaki

• Komura, Kenichi

• Kubota, Yoshihiro

• Sugi, Yoshihiro

抄録

H-[Al]-SSZ-24 zeolites with AFI topology were synthesized through the alumination of [B]-SSZ-24 zeolites, andapplied for the alkylation of biphenyl (BP). H-[Al]-SSZ-24 zeolites have high activity for the isopropylation. The shapeselectiveformation of 4,40-diisopropylbiphenyl (4,40-DIPB) occurred at moderate temperature; however, the selectivityfor 4,40-DIPB decreased with an increase in the reaction temperature. Isomerization of 4,40-DIPB occurred at higher temperaturesover internal and external acid sites when there are enough acid sites inside the channels. The channels candiscriminate 4,40-DIPB from the other DIPB isomers in their transition states; however, they can not prevent the isomerizationof 4,40-DIPB at higher temperatures. The selectivity for the least bulky 4,40-dialkylbiphenyl increased with thebulkiness of alkylating agents in the order: isopropylation < s-butylation < t-butylation. These results strongly supportthe shape-selective formation of the least bulky products inside the channels of H-[Al]-SSZ-24 zeolites.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 80 (1), 215-223, 2007-01-12

  Chemical Society of Japan

詳細情報

• CRID: 1050001337739202048
• NII論文ID: 10018708865
• NII書誌ID: AA00580132
• ISSN: 00092673
• NDL書誌ID: 8603751
• Web Site: http://hdl.handle.net/10131/9136
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8603751
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • NDL
  • CiNii Articles