The DOI matches its Crossref record.
Organocatalytic Direct Asymmetric Aldol Reactions of 3-Isothiocyanato Oxindoles to Ketones: Stereocontrolled Synthesis of Spirooxindoles Bearing Highly Congested Contiguous Tetrasubstituted Stereocenters
Abstract
The first example of a direct catalytic asymmetric intermolecular aldol reaction of 3-isothiocyanato oxindoles to simple ketones with bifunctional thiourea-tertiary amine as catalyst is reported. This strategy provides a promising approach for the asymmetric synthesis of a range of enantioenriched spirocyclic oxindoles bearing two highly congested contiguous tetrasubstituted carbon stereocenters. Versatile transformations of the spirocyclic oxindole products into other structurally diverse spirocyclic oxindoles have also been demonstrated.
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.
Integrity signals
Registry
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.
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
Recent Advances in Asymmetric Organocatalytic Construction of 3,3′‐Spirocyclic Oxindoles
Hong, L., & Wang, R. (2013) · Advanced Synthesis & Catalysis · doi:10.1002/adsc.201200808 · Cited by 718
Catalytic asymmetric synthesis of spirooxindoles: recent developments
Mei, G.-J., & Shi, F. (2018) · Chemical Communications · doi:10.1039/c8cc02364f · Cited by 467
Recent advances in the synthesis of biologically active spirooxindoles
Santos, M. M. M. (2014) · Tetrahedron · doi:10.1016/j.tet.2014.08.005 · Cited by 398
Recent advances in cooperative bimetallic asymmetric catalysis: dinuclear Schiff base complexes
Matsunaga, S., & Shibasaki, M. (2014) · Chem. Commun. · doi:10.1039/c3cc47587e · Cited by 263
Metadata
- Authors
- Chen, W.-B., Wu, Z.-J., Hu, J., Cun, L.-F., Zhang, X.-M., & Yuan, W.-C.
- Venue
- Organic Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-04-07
- Volume
- 13
- Issue
- 9
- Pages
- 2472-2475
- ISSN
- 1523-7052 (ISSN-L)
- 1523-7060
- OpenAlex
- W2029136259
- Cited by
- 195
- References
- 0
- FWCI
- 14.36
- 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: Organocatalytic Direct Asymmetric Aldol Reactions of 3-Isothiocyanato Oxindoles to Ketones: Stereocontrolled Synthesis of Spirooxindoles Bearing Highly Congested Contiguous Tetrasubstituted Stereocenters. https://app.cochat.ai/papers/10.1021/ol200724q
- The paper
- Chen, W.-B., Wu, Z.-J., Hu, J., Cun, L.-F., Zhang, X.-M., & Yuan, W.-C. (2011). Organocatalytic Direct Asymmetric Aldol Reactions of 3-Isothiocyanato Oxindoles to Ketones: Stereocontrolled Synthesis of Spirooxindoles Bearing Highly Congested Contiguous Tetrasubstituted Stereocenters. Organic Letters. https://doi.org/10.1021/ol200724q
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.