The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.
NMR Study of the Solution Structure of Curcumin
Abstract
Curcumin [1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione] is derived from the rhizomes of Curcuma longa. Although early studies concluded that curcumin exists predominantly as a keto-enol tautomer, 1b, in several recent articles the solution structure of curcumin has been represented as a beta-diketone tautomer, 1a. We have investigated the structure of curcumin in solvents ranging in polarity from CDCl3 to mixtures of DMSO-d6 in water, and in buffered aqueous DMSO-d6 solutions with pH values varying from 3 to 9. The solution structure of curcumin was determined on the basis of NMR techniques, including DEPT, HMQC, HMBC, and COSY. The results of the NMR studies show definitely that curcumin exists in solution as keto-enol tautomers, 1b.
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
Cites
Antioxidant activity of curcumin and related compounds
Sharma, O. P. (1976) · Biochemical Pharmacology · doi:10.1016/0006-2952(76)90421-4 · Cited by 851
Pharmacology of diferuloyl methane (curcumin), a non-steroidal anti-inflammatory agent
Srimal, R. C., & Dhawan, B. N. (1973) · Journal of Pharmacy and Pharmacology · doi:10.1111/j.2042-7158.1973.tb09131.x · Cited by 674
H-Atom Transfer Is A Preferred Antioxidant Mechanism of Curcumin
Jovanovic, S. V., Steenken, S., Boone, C. W., & Simic, M. G. (1999) · Journal of the American Chemical Society · doi:10.1021/ja991446m · Cited by 452
Molecular Orbital Basis for Yellow Curry Spice Curcumin's Prevention of Alzheimer's Disease
Balasubramanian, K. (2006) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf0603533 · Cited by 188
Some Perspectives on Dietary Inhibition of Carcinogenesis: Studies with Curcumin and Tea
Conney, A. H., Lou, Y. R., Xie, J. G., Osawa, T., Newmark, H. L., Liu, Y., Chang, R. L., & Huang, M. (1997) · Experimental Biology and Medicine · doi:10.3181/00379727-216-44173 · Cited by 126
Interplay between MRP Inhibition and Metabolism of MRP Inhibitors: The Case of Curcumin
Wortelboer, H. M., Usta, M., van der Velde, A. E., Boersma, M. G., Spenkelink, B., van Zanden, J. J., Rietjens, I. M. C. M., van BLADEREN, P. J., & Cnubben, N. H. P. (2003) · Chemical Research in Toxicology · doi:10.1021/tx034101x · Cited by 118
Cited by
The Essential Medicinal Chemistry of Curcumin
Nelson, K. M., Dahlin, J. L., Bisson, J., Graham, J., Pauli, G. F., & Walters, M. A. (2017) · Journal of Medicinal Chemistry · doi:10.1021/acs.jmedchem.6b00975 · Cited by 1,956
Curcumin—From Molecule to Biological Function
Esatbeyoglu, T., Huebbe, P., Ernst, I. M. A., Chin, D., Wagner, A. E., & Rimbach, G. (2012) · Angewandte Chemie International Edition · doi:10.1002/anie.201107724 · Cited by 904
Curcumin: Biological, Pharmaceutical, Nutraceutical, and Analytical Aspects
Kotha, R. R., & Luthria, D. L. (2019) · Molecules · doi:10.3390/molecules24162930 · Cited by 890
Curcumin: An Anti-Inflammatory Molecule from a Curry Spice on the Path to Cancer Treatment
Basnet, P., & Skalko-Basnet, N. (2011) · Molecules · doi:10.3390/molecules16064567 · Cited by 733
The effect of curcumin (turmeric) on Alzheimer’s disease: An overview
Mishra, S., & Palanivelu, K. (2008) · Annals of Indian Academy of Neurology · doi:10.4103/0972-2327.40220 · Cited by 599
Metadata
- Authors
- Payton, F., Sandusky, P., & Alworth, W. L.
- Venue
- Journal of Natural Products
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-01-19
- Volume
- 70
- Issue
- 2
- Pages
- 143-146
- ISSN
- 0163-3864 (ISSN-L)
- 1520-6025
- OpenAlex
- W2020374958
- Cited by
- 381
- References
- 6
- FWCI
- 5.59
- 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: NMR Study of the Solution Structure of Curcumin. https://app.cochat.ai/papers/10.1021/np060263s
- The paper
- Payton, F., Sandusky, P., & Alworth, W. L. (2007). NMR Study of the Solution Structure of Curcumin. Journal of Natural Products. https://doi.org/10.1021/np060263s
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.