The DOI matches its Crossref record; 68 of the 68 references it cites were found in a registry or an index.
Large Nonlinear Effect Observed in the Enantiomeric Excess of Proline in Solution and That in the Solid State
Open accessAbstract
A clue to the origin of chirality? A solution of proline with high enantiomeric excess (85–99 % ee) was obtained from solid proline of only 10 % ee through novel dissolution and crystallization processes (see scheme). This observation may be an explanation for the origin of chirality on Earth.
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.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Thus, an ee amplification process is needed to reach enantiopure organic compounds (Scheme 1).11–20)”
From Asymmetric autocatalysis. Chiral symmetry breaking and the origins of homochirality of organic molecules (2019) · cites this paper as [16]
Experimental — accuracy not yet measuredThe cited source says what the claim attributes to it.
In the citing paper
“The linkage between the induced small enantioenrichment and the enantiopure compounds has thus remained a puzzle.11–20)”
From Asymmetric autocatalysis. Chiral symmetry breaking and the origins of homochirality of organic molecules (2019) · cites this paper as [16]
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
Purification of Laboratory Chemicals
(2003) · Elsevier eBooks · doi:10.1016/b978-0-7506-7571-0.x5000-5 · Cited by 8,726
Purification of Laboratory Chemicals
Eaborn, C. (1989) · Journal of Organometallic Chemistry · doi:10.1016/0022-328x(89)85446-4 · Cited by 4,353
Proline-Catalyzed Direct Asymmetric Aldol Reactions
List, B., Lerner, R. A., & Barbas, C. F. (2000) · Journal of the American Chemical Society · doi:10.1021/ja994280y · Cited by 2,926
In the Golden Age of Organocatalysis
Dalko, P. I., & Moisan, L. (2004) · Angewandte Chemie International Edition · doi:10.1002/anie.200400650 · Cited by 2,599
Enantiomers, Racemates, and Resolutions
Jacques, J., Collet, A., & Wilen, S. H. (1981) · Cited by 1,714
Berkessel, A., & Gröger, H. (2005) · Wiley eBooks · doi:10.1002/3527604677 · Cited by 1,351
Sakthivel, K., Notz, W., Bui, T., & Barbas, C. F. (2001) · Journal of the American Chemical Society · doi:10.1021/ja010037z · Cited by 1,167
Asymmetric autocatalysis and amplification of enantiomeric excess of a chiral molecule
Soai, K., Shibata, T., Morioka, H., & Choji, K. (1995) · Nature · doi:10.1038/378767a0 · Cited by 1,085
New Type of Asymmetric Cyclization to Optically Active Steroid CD Partial Structures
Eder, U., Sauer, G., & Wiechert, R. (1971) · Angewandte Chemie International Edition in English · doi:10.1002/anie.197104961 · Cited by 1,058
Amino acids from ultraviolet irradiation of interstellar ice analogues
Muñoz, G. M., Meierhenrich, U. J., Schutte, W. A., Barbier, B., Arcones, A., Rosenbauer, H., Thiemann, W., Brack, A., & Greenberg, J. M. (2002) · Nature · doi:10.1038/416403a · Cited by 850
List, B. (2004) · Accounts of Chemical Research · doi:10.1021/ar0300571 · Cited by 765
The Direct Catalytic Asymmetric Mannich Reaction
Córdova, A. (2004) · Accounts of Chemical Research · doi:10.1021/ar030231l · Cited by 748
Im Goldenen Zeitalter der Organokatalyse
Dalko, P. I., & Moisan, L. (2004) · Angewandte Chemie · doi:10.1002/ange.200400650 · Cited by 727
The First Direct and Enantioselective Cross-Aldol Reaction of Aldehydes
Northrup, A. B., & MacMillan, D. W. C. (2002) · Journal of the American Chemical Society · doi:10.1021/ja0262378 · Cited by 706
Catalytic Asymmetric Synthesis of anti-1,2-Diols
Notz, W., & List, B. (2000) · Journal of the American Chemical Society · doi:10.1021/ja001460v · Cited by 646
The origin and amplification of biomolecular chirality
Bonner, W. A. (1991) · Origins of life and evolution of the biosphere · doi:10.1007/bf01809580 · Cited by 557
The Direct and Enantioselective Organocatalytic α-Oxidation of Aldehydes
Brown, S. P., Brochu, M. P., Sinz, C. J., & MacMillan, D. W. C. (2003) · Journal of the American Chemical Society · doi:10.1021/ja037096s · Cited by 528
Zhong, G. (2003) · Angewandte Chemie International Edition · doi:10.1002/anie.200352097 · Cited by 448
Thermodynamic control of asymmetric amplification in amino acid catalysis
Klussmann, M., Iwamura, H., Mathew, S. P., Wells, D. H., Pandya, U., Armstrong, A., & Blackmond, D. G. (2006) · Nature · doi:10.1038/nature04780 · Cited by 396
Two-Step Synthesis of Carbohydrates by Selective Aldol Reactions
Northrup, A. B., & MacMillan, D. W. C. (2004) · Science · doi:10.1126/science.1101710 · Cited by 395
Prebiotic Amino Acids as Asymmetric Catalysts
Pizzarello, S., & Weber, A. L. (2004) · Science · doi:10.1126/science.1093057 · Cited by 388
Neuartige asymmetrische Cyclisierung zu optisch aktiven Steroid‐CD‐Teilstücken
Eder, U., Sauer, G., & Wiechert, R. (1971) · Angewandte Chemie · doi:10.1002/ange.19710831307 · Cited by 385
Enantioselective Automultiplication of Chiral Molecules by Asymmetric Autocatalysis
Soai, K., Shibata, T., & Sato, I. (2000) · Accounts of Chemical Research · doi:10.1021/ar9900820 · Cited by 336
Direct proline catalyzed asymmetric α-aminooxylation of aldehydes
Hayashi, Y., Yamaguchi, J., Hibino, K., & Shoji, M. (2003) · Tetrahedron Letters · doi:10.1016/j.tetlet.2003.09.057 · Cited by 314
Self-citationDuthaler, R. O. (2003) · Angewandte Chemie International Edition · doi:10.1002/anie.200390283 · Cited by 284
Direct Proline‐Catalyzed Asymmetric α‐Aminoxylation of Ketones
Hayashi, Y., Yamaguchi, J., Sumiya, T., & Shoji, M. (2004) · Angewandte Chemie International Edition · doi:10.1002/anie.200353085 · Cited by 278
Self-citationBøgevig, A., Sundén, H., & Córdova, A. (2004) · Angewandte Chemie International Edition · doi:10.1002/anie.200353018 · Cited by 249
Movassaghi, M., & Jacobsen, E. N. (2002) · Science · doi:10.1126/science.1076547 · Cited by 244
Nonracemic isovaline in the Murchison meteorite: chiral distribution and mineral association
Pizzarello, S., Zolensky, M., & Turk, K. A. (2003) · Geochimica et Cosmochimica Acta · doi:10.1016/s0016-7037(02)01283-8 · Cited by 222
The Direct Amino Acid-Catalyzed Asymmetric Incorporation of Molecular Oxygen to Organic Compounds
Córdova, A., Sundén, H., Engqvist, M., Ibrahem, I., & Casas, J. (2004) · Journal of the American Chemical Society · doi:10.1021/ja047930t · Cited by 220
Direct Organocatalytic De Novo Synthesis of Carbohydrates
Enders, D., & Grondal, C. (2005) · Angewandte Chemie International Edition · doi:10.1002/anie.200462428 · Cited by 210
Bøgevig, A., Sundén, H., & Córdova, A. (2004) · Angewandte Chemie · doi:10.1002/ange.200353018 · Cited by 202
Merino, P., & Tejero, T. (2004) · Angewandte Chemie International Edition · doi:10.1002/anie.200301760 · Cited by 191
Absolute asymmetrische Synthese: Ursprung, Beeinflussung und Verstärkung von Chiralität
Feringa, B. L., & van Delden, R. A. (1999) · Angewandte Chemie · doi:10.1002/(sici)1521-3757(19991203)111:23 · Cited by 180
Córdova, A., Sundén, H., Bøgevig, A., Johansson, M., & Himo, F. (2004) · Chemistry - A European Journal · doi:10.1002/chem.200400137 · Cited by 177
Chiral autocatalysis: where stereochemistry meets the origin of life
Ávalos, M., Babiano, R., Cintas, P., Jiménez, J. L., & Palacios, J. C. (2000) · Chemical Communications · doi:10.1039/a908300f · Cited by 175
Kim, H. S., Kim, J. J., Lee, B. G., Jung, O. S., Jang, H. G., & Kang, S. O. (2000) · Angewandte Chemie International Edition · doi:10.1002/1521-3773(20001117)39:22 · Cited by 170
Chowdari, N. S., Ramachary, D. B., Córdova, A., & Barbas, C. F. (2002) · Tetrahedron Letters · doi:10.1016/s0040-4039(02)02412-7 · Cited by 165
Amplification of Enantiomeric Excess in a Proline‐Mediated Reaction
Mathew, S. P., Iwamura, H., & Blackmond, D. G. (2004) · Angewandte Chemie International Edition · doi:10.1002/anie.200453997 · Cited by 163
Direct Proline-Catalyzed Asymmetric α-Aminoxylation of Aldehydes and Ketones
Hayashi, Y., Yamaguchi, J., Sumiya, T., Hibino, K., & Shoji, M. (2004) · The Journal of Organic Chemistry · doi:10.1021/jo049338s · Cited by 153
Self-citationOrigin of organic molecules and biomolecular homochirality
Podlech, J. (2001) · Cellular and Molecular Life Sciences · doi:10.1007/pl00000777 · Cited by 145
The Dihydroxyacetone Unit—A Versatile C3Building Block in Organic Synthesis
Enders, D., Voith, M., & Lenzen, A. (2005) · Angewandte Chemie International Edition · doi:10.1002/anie.200400659 · Cited by 143
Suri, J. T., Ramachary, D. B., & Barbas, C. F. (2005) · Organic Letters · doi:10.1021/ol0502533 · Cited by 143
Mason, S. R. (1988) · Chemical Society Reviews · doi:10.1039/cs9881700347 · Cited by 142
Amino Acid Catalyzed Neogenesis of Carbohydrates: A Plausible Ancient Transformation
Córdova, A., Ibrahem, I., Casas, J., Sundén, H., Engqvist, M., & Reyes, E. (2005) · Chemistry - A European Journal · doi:10.1002/chem.200500139 · Cited by 141
Zhong, G. (2003) · Angewandte Chemie · doi:10.1002/ange.200352097 · Cited by 137
Ibrahem, I., & Córdova, A. (2005) · Tetrahedron Letters · doi:10.1016/j.tetlet.2005.03.084 · Cited by 128
Plausible origins of homochirality in the amino acid catalyzed neogenesis of carbohydrates
Córdova, A., Engqvist, M., Ibrahem, I., Casas, J., & Sundén, H. (2005) · Chem. Commun. · doi:10.1039/b500589b · Cited by 127
Direct asymmetric organocatalytic de novo synthesis of carbohydrates
Grondal, C., & Enders, D. (2005) · Tetrahedron · doi:10.1016/j.tet.2005.09.060 · Cited by 105
Probing the Active Catalyst in Product-Accelerated Proline-Mediated Reactions
Iwamura, H., Wells, D. H., Mathew, S. P., Klußmann, M., Armstrong, A., & Blackmond, D. G. (2004) · Journal of the American Chemical Society · doi:10.1021/ja0444177 · Cited by 102
Induction of Asymmetry by Amino Acids
Drauz, K., Kleeman, A., & Martens, J. (1982) · Angewandte Chemie International Edition in English · doi:10.1002/anie.198205841 · Cited by 98
Direct Proline‐Catalyzed Asymmetric α‐Aminoxylation of Ketones
Hayashi, Y., Yamaguchi, J., Sumiya, T., & Shoji, M. (2004) · Angewandte Chemie · doi:10.1002/ange.200353085 · Cited by 92
Self-citationDiscovery and Development of Asymmetric Autocatalysis
Soai, K., Shibata, T., & Sato, I. (2004) · Bulletin of the Chemical Society of Japan · doi:10.1246/bcsj.77.1063 · Cited by 86
Duthaler, R. O. (2003) · Angewandte Chemie · doi:10.1002/ange.200390228 · Cited by 83
Induktion von Asymmetrie durch Aminosäuren
Drauz, K., Kleemann, A., & Martens, J. (2006) · Angewandte Chemie · doi:10.1002/ange.19820940804 · Cited by 81
Tamura, R., Fujimoto, D., Lepp, Z., Misaki, K., Miura, H., Takahashi, H., Ushio, T., Nakai, T., & Hirotsu, K. (2002) · Journal of the American Chemical Society · doi:10.1021/ja020454r · Cited by 81
Asymmetric syntheses with amino acids
Martens, J. (1984) · Topics in current chemistry · doi:10.1007/3-540-13569-3_5 · Cited by 75
Asymmetric autocatalysis and the origin of chiral homogeneity in organic compounds
Soai, K., Sato, I., & Shibata, T. (2001) · The Chemical Record · doi:10.1002/tcr.1017 · Cited by 74
Enders, D., Paleček, J., & Grondal, C. (2006) · Chemical Communications · doi:10.1039/b515007h · Cited by 73
Direkte organokatalytische De‐novo‐Synthese von Kohlenhydraten
Enders, D., & Grondal, C. (2005) · Angewandte Chemie · doi:10.1002/ange.200462428 · Cited by 67
Merino, P., & Tejero, T. (2004) · Angewandte Chemie · doi:10.1002/ange.200301760 · Cited by 65
Amine‐catalyzed Aldol Reactions
List, B. (2004) · doi:10.1002/9783527619566.ch4 · Cited by 49
Die Dihydroxyaceton‐Einheit – ein nützlicher C3‐Baustein in der Organischen Synthese
Enders, D., Voith, M., & Lenzen, A. (2005) · Angewandte Chemie · doi:10.1002/ange.200400659 · Cited by 45
Amplification of Enantiomeric Excess in a Proline‐Mediated Reaction
Mathew, S. P., Iwamura, H., & Blackmond, D. G. (2004) · Angewandte Chemie · doi:10.1002/ange.200453997 · Cited by 41
Neues zum Ursprung der Homochiralität biologisch relevanter Moleküle
Buschmann, H., Thede, R., & Heller, D. (2000) · Angewandte Chemie · doi:10.1002/1521-3757(20001117)112:22 · Cited by 30
Topalov, G. T., & Kishi, Y. (2001) · Angewandte Chemie · doi:10.1002/1521-3757(20011015)113:20 · Cited by 7
Absolute Asymmetric Synthesis: The Origin, Control, and Amplification of Chirality
Feringa, B. L., & van Delden, R. A. (1999) · Angewandte Chemie International Edition · doi:10.1002/(sici)1521-3773(19991203)38:23
Research works printed but not linked: 1
- Kayushina R. L., 1965, Kristallografiya, 10, 834
Cited by
Sorted by citations
Wei, H., & Wang, E. (2008) · Analytical Chemistry · doi:10.1021/ac702203f · Cited by 1,413
Asymmetric Aminocatalysis—Gold Rush in Organic Chemistry
Melchiorre, P., Marigo, M., Carlone, A., & Bartoli, G. (2008) · Angewandte Chemie International Edition · doi:10.1002/anie.200705523 · Cited by 1,274
Nonlinear Effects in Asymmetric Catalysis
Satyanarayana, T., Abraham, S., & Kagan, H. B. (2009) · Angewandte Chemie International Edition · doi:10.1002/anie.200705241 · Cited by 591
Organocatalysis Lost: Modern Chemistry, Ancient Chemistry, and an Unseen Biosynthetic Apparatus
Barbas, C. F. (2007) · Angewandte Chemie International Edition · doi:10.1002/anie.200702210 · Cited by 528
Die asymmetrische Aminokatalyse – Goldrausch in der organischen Chemie
Melchiorre, P., Marigo, M., Carlone, A., & Bartoli, G. (2008) · Angewandte Chemie · doi:10.1002/ange.200705523 · Cited by 464
Metadata
- Authors
- Hayashi, Y., Matsuzawa, M., Yamaguchi, J., Yonehara, S., Matsumoto, Y., Shoji, M., Hashizume, D., & Koshino, H.
- Affiliations
- Tokyo University of Science (JP)
- RIKEN (JP)
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2006-07-03
- Volume
- 45
- Issue
- 28
- Pages
- 4593-4597
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2148937565
- Cited by
- 120
- References
- 68
- Citations by year
- 2025: 1 · 2022: 9 · 2021: 4 · 2020: 3 · 2019: 6 · 2018: 7 · 2017: 3 · 2016: 3 · 2015: 7 · 2014: 4 · 2013: 3 · 2012: 7
- FWCI
- 8.24
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Angewandte Chemie International Edition (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Education, Culture, Sports, Science and Technology
- University of Tokyo
- Toray Science Foundation
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
- Physical Sciences › Chemistry › Organic Chemistry › Asymmetric Synthesis and Catalysis
- Physical Sciences › Chemistry › Organic Chemistry › Chemistry and Stereochemistry Studies
- Keywords
- proline, enantiomeric excess, nonlinear optical effects, circular dichroism, enantiomeric excess amplification, amino acids
- MeSH terms
- Proline, Solutions, Time Factors, Molecular Structure
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