Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 648

The DOI matches its Crossref record.

Efficient Epoxidation of Olefins with ≥99% Selectivity and Use of Hydrogen Peroxide

Kamata, Keigo, Yonehara, Koji, Sumida, Yasutaka, Yamaguchi, Kazuya, Hikichi, Shiro, Mizuno, Noritaka·2003·Science

Abstract

Epoxides are an important class of industrial chemicals that have been used as chemical intermediates. Catalytic epoxidation of olefins affords an interesting production technology. We found a widely usable green route to the production of epoxides: A silicotungstate compound, [γ-SiW 10 O 34 (H 2 O) 2 ] 4– , is synthesized by protonation of a divacant, lacunary, Keggin-type polyoxometalate of [γ-SiW 10 O 36 ] 8– and exhibits high catalytic performance for the epoxidation of various olefins, including propylene, with a hydrogen peroxide (H 2 O 2 ) oxidant at 305 kelvin. The effectiveness of this catalyst is evidenced by ≥99% selectivity to epoxide, ≥99% efficiency of H 2 O 2 utilization, high stereospecificity, and easy recovery of the catalyst from the homogeneous reaction mixture.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/science.1083176

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 648

Metadata

Authors
Kamata, K., Yonehara, K., Sumida, Y., Yamaguchi, K., Hikichi, S., & Mizuno, N.
Venue
Science
Published
2003-05-09
Volume
300
Issue
5621
Pages
964-966
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2071050467
Cited by
648
References
0
FWCI
17.80
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Efficient Epoxidation of Olefins with ≥99% Selectivity and Use of Hydrogen Peroxide. https://app.cochat.ai/papers/10.1126/science.1083176
The paper
Kamata, K., Yonehara, K., Sumida, Y., Yamaguchi, K., Hikichi, S., & Mizuno, N. (2003). Efficient Epoxidation of Olefins with ≥99% Selectivity and Use of Hydrogen Peroxide. Science. https://doi.org/10.1126/science.1083176

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.