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Cited by 167

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Silica-supported aminopyridinium halides for catalytic transformations of epoxides to cyclic carbonates under atmospheric pressure of carbon dioxide

Motokura, Ken, Itagaki, Shintaro, Iwasawa, Yasuhiro, Miyaji, Akimitsu, Baba, Toshihide·2009·Green Chemistry

Abstract

Silica-supported 4-pyrrolidinopyridinium iodide was prepared by quaternization of 4-pyrrolidinopyridine with silica-supported alkyl iodide. The pyrrolidinopyridinium structure on the silica surface was confirmed by solid-state 13C CP MAS NMR. The silica-supported 4-pyrrolidinopyridinium iodide showed excellent catalytic performances for transformations of various epoxides to cyclic carbonates under atmospheric pressure of carbon dioxide (CO2). The reactions took place without any solvents or additives other than the catalyst. The catalyst was reusable with retention of activity and selectivity. 1-n-Hexyl-4-pyrrolidinopyridinium as a homogeneous catalyst showed a lower catalytic performance than the supported catalyst. Bifunctional catalysis involving acidic surface silanol and the basic 4-pyrrolidinopyridinium iodide was proposed.

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Metadata

Authors
Motokura, K., Itagaki, S., Iwasawa, Y., Miyaji, A., & Baba, T.
Venue
Green Chemistry
Published
2009
Volume
11
Issue
11
Pages
1876
ISSN
  • 1463-9262 (ISSN-L)
  • 1463-9270
OpenAlex
W1993946786
Cited by
167
References
2
FWCI
7.41
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Silica-supported aminopyridinium halides for catalytic transformations of epoxides to cyclic carbonates under atmospheric pressure of carbon dioxide. https://app.cochat.ai/papers/10.1039/b916764c
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Motokura, K., Itagaki, S., Iwasawa, Y., Miyaji, A., & Baba, T. (2009). Silica-supported aminopyridinium halides for catalytic transformations of epoxides to cyclic carbonates under atmospheric pressure of carbon dioxide. Green Chemistry. https://doi.org/10.1039/b916764c

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