Stable monovalent aluminum(i) in a reduced phosphomolybdate cluster as an active acid catalyst
This journal is © The Royal Society of Chemistry..
Low-valent aluminum Al(i) chemistry has attracted extensive research interest due to its unique chemical and catalytic properties but is limited by its low stability. Herein, a hourglass phosphomolybdate cluster with a metal-center sandwiched by two benzene-like planar subunits and large steric-hindrance is used as a scaffold to stabilize low-valent Al(i) species. Two hybrid structures, (H3O)2(H2bpe)11[AlIII(H2O)2]3{[AlI(P4MoV 6O31H6)2]3·7H2O (abbr. Al6{P4Mo6}6) and (H3O)3(H2bpe)3[AlI(P4MoV 6O31H7)2]·3.5H2O (abbr. Al{P4Mo6}2) (bpe = trans-1,2-di-(4-pyridyl)-ethylene) were successfully synthesized with Al(i)-sandwiched polyoxoanionic clusters as the first inorganic-ferrocene analogues of a monovalent group 13 element with dual Lewis and Brønsted acid sites. As dual-acid catalysts, these hourglass structures efficiently catalyze a solvent-free four-component domino reaction to synthesize 1,5-benzodiazepines. This work provides a new strategy to stabilize low-valent Al(i) species using a polyoxometalate scaffold.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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| Enthalten in: |
Chemical science - 12(2020), 5 vom: 08. Dez., Seite 1886-1890 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Ya-Qi [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 02.03.2022 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1039/d0sc05277a |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM327112158 |
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| 245 | 1 | 0 | |a Stable monovalent aluminum(i) in a reduced phosphomolybdate cluster as an active acid catalyst |
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| 500 | |a published: Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a This journal is © The Royal Society of Chemistry. | ||
| 520 | |a Low-valent aluminum Al(i) chemistry has attracted extensive research interest due to its unique chemical and catalytic properties but is limited by its low stability. Herein, a hourglass phosphomolybdate cluster with a metal-center sandwiched by two benzene-like planar subunits and large steric-hindrance is used as a scaffold to stabilize low-valent Al(i) species. Two hybrid structures, (H3O)2(H2bpe)11[AlIII(H2O)2]3{[AlI(P4MoV 6O31H6)2]3·7H2O (abbr. Al6{P4Mo6}6) and (H3O)3(H2bpe)3[AlI(P4MoV 6O31H7)2]·3.5H2O (abbr. Al{P4Mo6}2) (bpe = trans-1,2-di-(4-pyridyl)-ethylene) were successfully synthesized with Al(i)-sandwiched polyoxoanionic clusters as the first inorganic-ferrocene analogues of a monovalent group 13 element with dual Lewis and Brønsted acid sites. As dual-acid catalysts, these hourglass structures efficiently catalyze a solvent-free four-component domino reaction to synthesize 1,5-benzodiazepines. This work provides a new strategy to stabilize low-valent Al(i) species using a polyoxometalate scaffold | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Zhou, Lai-Yun |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Yuan-Yuan |e verfasserin |4 aut | |
| 700 | 1 | |a Dastafkan, Kamran |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Chuan |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Lan-Zhi |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Zhan-Gang |e verfasserin |4 aut | |
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