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Li MY, Wang S, Li XT, Zhu B, Guan W. Origin of Manipulating Selectivity in Prins Cyclization by [Ga 4L 6] 12- Supramolecular Catalysis through Host-Guest Interactions. Inorg Chem 2024. [PMID: 39119932 DOI: 10.1021/acs.inorgchem.4c02224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
The host effect of the supramolecular [Ga4L6]12- tetrahedral metallocage on Prins cyclization reaction of the substrate by encapsulated citronellal has been investigated by means of molecular dynamics and quantum mechanics. The encapsulation process of the substrate into the [Ga4L6]12- cavity was simulated via attach-pull-release (APR) methods. Thermodynamic calculations and classical molecular dynamics simulations assessed the substrate's microenvironment inside the cavity, guiding DFT-level modeling of the reaction. DFT calculations show diol product predominance in acidic solution but high enol selectivity inside [Ga4L6]12-, consistent with experimental findings. [Ga4L6]12- alters the selectivity of the Prins cyclization reaction by inhibiting diol formation. The activation strain model-based decomposition analysis (ASM-DA) of the barrier difference among distortion and interaction terms indicates that the more positive interaction between a host and guest in the diol transition state than enol determines the product selectivity, particularly the fewer C-H···O and O-H···O hydrogen-bonding interactions. These theoretical insights could contribute to a deeper understanding of the nature of supramolecular catalysis and to further develop new supramolecular catalysts.
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Affiliation(s)
- Mo-Yao Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Shuang Wang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Xue-Tao Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Bo Zhu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Wei Guan
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
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Singh SK, Mishra N, Kumar S, Jaiswal MK, Tiwari VK. Growing Impact of Carbohydrate‐Based Organocatalysts. ChemistrySelect 2022. [DOI: 10.1002/slct.202201314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sumit K. Singh
- Department of Chemistry Institute of Science Banaras Hindu University Varanasi 221005 INDIA
| | - Nidhi Mishra
- Department of Chemistry Institute of Science Banaras Hindu University Varanasi 221005 INDIA
| | - Sunil Kumar
- Department of Chemistry Institute of Science Banaras Hindu University Varanasi 221005 INDIA
| | - Manoj K. Jaiswal
- Department of Chemistry Institute of Science Banaras Hindu University Varanasi 221005 INDIA
| | - Vinod K. Tiwari
- Department of Chemistry Institute of Science Banaras Hindu University Varanasi 221005 INDIA
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3
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Juaristi E. Recent developments in next generation (S)-proline-derived chiral organocatalysts. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132143] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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4
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Rani D, Sethi A, Kaur K, Agarwal J. Ultrasonication-Assisted Synthesis of a d-Glucosamine-Based β-CD Inclusion Complex and Its Application as an Aqueous Heterogeneous Organocatalytic System. J Org Chem 2020; 85:9548-9557. [PMID: 32672959 DOI: 10.1021/acs.joc.0c00420] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
For the first time, an inclusion complex has been crafted between a carbohydrate-based molecule and a β-cyclodextrin (CD) hydrophobic cavity for asymmetric catalytic applications. This novel d-glucosamine-based inclusion compound has been synthesized in high yields using an innovative and proficient acoustic cavitation technology and well characterized using various techniques, such as infrared spectroscopy, nuclear magnetic resonance spectroscopy, ultraviolet-visible spectroscopy, thermogravimetric analysis, scanning electron microscopy, and other spectroscopic techniques. It was observed that the inclusion of a d-glucosamine derivative into the hydrophobic cavity of β-CD increased its surface area and thermal stability. This catalytic system worked well in water for the direct aldol reaction to afford the products in excellent yields with high diastereo- and enantioselectivities.
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Affiliation(s)
- Dhiraj Rani
- Department of Chemistry and Center of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Aaftaab Sethi
- Department of Chemistry and Center of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Khushwinder Kaur
- Department of Chemistry and Center of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Jyoti Agarwal
- Department of Chemistry and Center of Advanced Studies, Panjab University, Chandigarh 160014, India
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Kauerhof D, Niemeyer J. Functionalized Macrocycles in Supramolecular Organocatalysis. Chempluschem 2020; 85:889-899. [PMID: 32391655 DOI: 10.1002/cplu.202000152] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/26/2020] [Indexed: 01/18/2023]
Abstract
Supramolecular organocatalysis has emerged as a novel research field in the context of homogeneous catalysis. In particular, the use of functionalized macrocycles as supramolecular catalysts is highly promising, as these systems are oftentimes easily accessible and offer distinct advantages in catalysis. Macrocyclic catalysts can provide defined binding pockets, such as hydrophobic cavities, and can thus create a reaction microenvironment for catalysis. In addition, macrocycles can offer a preorganized arrangement of functional groups, such as binding sites or catalytically active groups, thus enabling a defined and possibly multivalent binding and activation of substrates. The aim of this Minireview is to provide an overview of recent advances in the area of supramolecular organocatalysis based on functionalized macrocycles (including cyclodextrins, calixarenes, and resorcinarenes), with a focus on those examples where certain catalytically active groups (such as hydrogen bond donors/acceptors, Brønsted acid or base groups, or nucleophilic units) are present in or have been installed on the macrocycles.
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Affiliation(s)
- Dana Kauerhof
- Faculty of Chemistry (Organic Chemistry) and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitätsstr. 7, 45141, Essen, Germany
| | - Jochen Niemeyer
- Faculty of Chemistry (Organic Chemistry) and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitätsstr. 7, 45141, Essen, Germany
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Sánchez-Antonio O, Juaristi E. Synthesis of a new chiral organocatalyst derived from (S)-proline containing a 1,2,4-triazolyl moiety and its application in the asymmetric aldol reaction. Importance of one molecule of water generated in situ. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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7
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Tichá IC, Hybelbauerová S, Jindřich J. New α- and β-cyclodextrin derivatives with cinchona alkaloids used in asymmetric organocatalytic reactions. Beilstein J Org Chem 2019; 15:830-839. [PMID: 31019575 PMCID: PMC6466772 DOI: 10.3762/bjoc.15.80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/12/2019] [Indexed: 11/24/2022] Open
Abstract
The preparation of new organocatalysts for asymmetric syntheses has become a key stage of enantioselective catalysis. In particular, the development of new cyclodextrin (CD)-based organocatalysts allowed to perform enantioselective reactions in water and to recycle catalysts. However, only a limited number of organocatalytic moieties and functional groups have been attached to CD scaffolds so far. Cinchona alkaloids are commonly used to catalyze a wide range of enantioselective reactions. Thus, in this study, we report the preparation of new α- and β-CD derivatives monosubstituted with cinchona alkaloids (cinchonine, cinchonidine, quinine and quinidine) on the primary rim through a CuAAC click reaction. Subsequently, permethylated analogs of these cinchona alkaloid-CD derivatives also were synthesized and the catalytic activity of all derivatives was evaluated in several enantioselective reactions, specifically in the asymmetric allylic amination (AAA), which showed a promising enantiomeric excess of up to 75% ee. Furthermore, a new disubstituted α-CD catalyst was prepared as a pure AD regioisomer and also tested in the AAA. Our results indicate that (i) the cinchona alkaloid moiety can be successfully attached to CD scaffolds through a CuAAC reaction, (ii) the permethylated cinchona alkaloid-CD catalysts showed better results than the non-methylated CDs analogues in the AAA reaction, (iii) promising enantiomeric excesses are achieved, and (iv) the disubstituted CD derivatives performed similarly to monosubstituted CDs. Therefore, these new CD derivatives with cinchona alkaloids effectively catalyze asymmetric allylic aminations and have the potential to be successfully applied in other enantioselective reactions.
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Affiliation(s)
- Iveta Chena Tichá
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Simona Hybelbauerová
- Department of Teaching and Didactics of Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Jindřich Jindřich
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43, Prague 2, Czech Republic
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Bhati M, Kumari K, Easwar S. Probing the Synergistic Catalytic Model: A Rationally Designed Urea-Tagged Proline Catalyst for the Direct Asymmetric Aldol Reaction. J Org Chem 2018; 83:8225-8232. [PMID: 29847121 DOI: 10.1021/acs.joc.8b00962] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A urea tag was incorporated at the C-4 position of proline, cis to its COOH group, in order to explore the prospect of a synergistic effect between the two functional groups in the transition state of the enamine route to the asymmetric aldol reaction. The catalyst proved to be an excellent performer, delivering aldols in high yields and with excellent enantio- and diastereoselectivities using just 2 mol % loading in the presence of water; it also exhibited good levels of recyclability under aqueous conditions. The favorable results reveal the interesting possibility of an intramolecular host-guest interaction between the urea and the amino acid moieties, exerting a beneficial effect on catalysis. The concept could certainly offer a new direction toward more efficient catalyst design.
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Affiliation(s)
- Meeta Bhati
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
| | - Kiran Kumari
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
| | - Srinivasan Easwar
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
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De Rosa M, La Manna P, Talotta C, Soriente A, Gaeta C, Neri P. Supramolecular Organocatalysis in Water Mediated by Macrocyclic Compounds. Front Chem 2018; 6:84. [PMID: 29666791 PMCID: PMC5891620 DOI: 10.3389/fchem.2018.00084] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/12/2018] [Indexed: 11/20/2022] Open
Abstract
In the last decades many efforts have been devoted to design supramolecular organocatalysts able to work in water as the reaction medium. The use of water as solvent provides promising benefits with respect to environmental impact. In this context, macrocyclic compounds played a role of primary importance thanks to their ease of synthesis and their molecular recognition abilities toward the reactants. The aim of this review is to give an overview of the recent advances in the field of supramolecular organocatalysis in water, focusing the attention on calixarene and cyclodextrins derivatives. Calixarenes and cyclodextrins, thanks to their hydrophobic cavities, are able to host selectively the substrates isolating they from the reaction environment. In addition, the synthetic versatilities of these macrocycles permits to introduce useful functional groups in close proximity of the hydrophobic binding sites. Regarding the cyclodextrins (CDs), we have here reviewed the their most recent uses as organocatalysts for the synthesis of heterocyclic compounds, in multi-component reactions and in carbon-carbon bond forming reactions. Examples have been reported in which CD catalysts are able to drive the regiochemistry of common organic reactions. In addition, cyclodextrins bearing catalytically active chiral groups, have shown excellent enantioselectivity in the catalysis of organic reactions. Recently reported results have shown that calixarene derivatives are able to accelerate organic reaction under “on-water” conditions with a significant selectivity toward the reactants. Under “on-water conditions” the hydrophobic effect, induced by insoluble calixarene derivatives, forces the reactants and the catalyst to aggregate and thus accelerating the reaction between them thanks to an amplification of weak secondary interactions. Regarding the use of water-soluble calixarene organocatalysts, we have here reviewed their role in the acceleration of common organic reactions.
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Affiliation(s)
- Margherita De Rosa
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Pellegrino La Manna
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
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10
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Bai CC, Tian BR, Zhao T, Huang Q, Wang ZZ. Cyclodextrin-Catalyzed Organic Synthesis: Reactions, Mechanisms, and Applications. Molecules 2017; 22:E1475. [PMID: 28880241 PMCID: PMC6151768 DOI: 10.3390/molecules22091475] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/02/2017] [Indexed: 11/16/2022] Open
Abstract
Cyclodextrins are well-known macrocyclic oligosaccharides that consist of α-(1,4) linked glucose units and have been widely used as artificial enzymes, chiral separators, chemical sensors, and drug excipients, owing to their hydrophobic and chiral interiors. Due to their remarkable inclusion capabilities with small organic molecules, more recent interests focus on organic reactions catalyzed by cyclodextrins. This contribution outlines the current progress in cyclodextrin-catalyzed organic reactions. Particular emphases are given to the organic reaction mechanisms and their applications. In the end, the future directions of research in this field are proposed.
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Affiliation(s)
- Chang Cai Bai
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
| | - Bing Ren Tian
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
| | - Tian Zhao
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
| | - Qing Huang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Yinchuan 750004, China.
| | - Zhi Zhong Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China.
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Yinchuan 750004, China.
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12
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Li ZY, Chen Y, Zheng CQ, Yin Y, Wang L, Sun XQ. Highly enantioselective aldol reactions catalyzed by reusable upper rim-functionalized calix[4]arene-based l -proline organocatalyst in aqueous conditions. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.052] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Nakashima E, Yamamoto H. Asymmetric Aldol Synthesis: Choice of Organocatalyst and Conditions. Chem Asian J 2016; 12:41-44. [DOI: 10.1002/asia.201601525] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Erika Nakashima
- Molecular Catalyst Research Center; Chubu University; 1200 Matsumoto, Kasugai Aichi 487-8501 Japan
| | - Hisashi Yamamoto
- Molecular Catalyst Research Center; Chubu University; 1200 Matsumoto, Kasugai Aichi 487-8501 Japan
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14
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Lee KS, Parquette JR. A self-assembled nanotube for the direct aldol reaction in water. Chem Commun (Camb) 2016; 51:15653-6. [PMID: 26360936 DOI: 10.1039/c5cc06142c] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanotubes formed by the aqueous assembly of a proline-lysine dipeptide (1) were used to create the hydrophobic microenvironments required to catalyze the aldol reaction in water. The self-assembly process occurred most efficiently in the presence of the substrates, producing an array of homogeneous nanotubes under the reaction conditions. The nanotubes formed by dipeptide 1 served as an efficient catalyst for the aldol reaction that functioned at low loading levels and provided good to excellent conversions. The catalytic activity of 1 was minimal under conditions that dissociated the nanotube into soluble monomers.
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Affiliation(s)
- Kwang Soo Lee
- Department of Chemistry and Biochemistry, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
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15
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Szymkuć S, Gajewska EP, Klucznik T, Molga K, Dittwald P, Startek M, Bajczyk M, Grzybowski BA. Computer-Assisted Synthetic Planning: The End of the Beginning. Angew Chem Int Ed Engl 2016; 55:5904-37. [PMID: 27062365 DOI: 10.1002/anie.201506101] [Citation(s) in RCA: 303] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/14/2015] [Indexed: 11/07/2022]
Abstract
Exactly half a century has passed since the launch of the first documented research project (1965 Dendral) on computer-assisted organic synthesis. Many more programs were created in the 1970s and 1980s but the enthusiasm of these pioneering days had largely dissipated by the 2000s, and the challenge of teaching the computer how to plan organic syntheses earned itself the reputation of a "mission impossible". This is quite curious given that, in the meantime, computers have "learned" many other skills that had been considered exclusive domains of human intellect and creativity-for example, machines can nowadays play chess better than human world champions and they can compose classical music pleasant to the human ear. Although there have been no similar feats in organic synthesis, this Review argues that to concede defeat would be premature. Indeed, bringing together the combination of modern computational power and algorithms from graph/network theory, chemical rules (with full stereo- and regiochemistry) coded in appropriate formats, and the elements of quantum mechanics, the machine can finally be "taught" how to plan syntheses of non-trivial organic molecules in a matter of seconds to minutes. The Review begins with an overview of some basic theoretical concepts essential for the big-data analysis of chemical syntheses. It progresses to the problem of optimizing pathways involving known reactions. It culminates with discussion of algorithms that allow for a completely de novo and fully automated design of syntheses leading to relatively complex targets, including those that have not been made before. Of course, there are still things to be improved, but computers are finally becoming relevant and helpful to the practice of organic-synthetic planning. Paraphrasing Churchill's famous words after the Allies' first major victory over the Axis forces in Africa, it is not the end, it is not even the beginning of the end, but it is the end of the beginning for the computer-assisted synthesis planning. The machine is here to stay.
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Affiliation(s)
- Sara Szymkuć
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 02-224, Poland
| | - Ewa P Gajewska
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 02-224, Poland
| | - Tomasz Klucznik
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 02-224, Poland
| | - Karol Molga
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 02-224, Poland
| | - Piotr Dittwald
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 02-224, Poland
| | - Michał Startek
- Faculty of Mathematics, Informatics, and Mechanics, University of Warsaw, Banacha 2, 02-097 Warszawa, Poland
| | - Michał Bajczyk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 02-224, Poland
| | - Bartosz A Grzybowski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 02-224, Poland. , .,Center for Soft and Living Matter of Korea's Institute for Basic Science (IBS), Department of Chemistry, Ulsan National Institute of Science and Technology, 50, UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, South Korea. ,
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16
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Szymkuć S, Gajewska EP, Klucznik T, Molga K, Dittwald P, Startek M, Bajczyk M, Grzybowski BA. Computergestützte Syntheseplanung: Das Ende vom Anfang. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201506101] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sara Szymkuć
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw 02-224 Polen
| | - Ewa P. Gajewska
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw 02-224 Polen
| | - Tomasz Klucznik
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw 02-224 Polen
| | - Karol Molga
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw 02-224 Polen
| | - Piotr Dittwald
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw 02-224 Polen
| | - Michał Startek
- Faculty of Mathematics, Informatics, and Mechanics University of Warsaw Banacha 2 02-097 Warszawa Poland
| | - Michał Bajczyk
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw 02-224 Polen
| | - Bartosz A. Grzybowski
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 Warsaw 02-224 Polen
- Center for Soft and Living Matter of Korea's Institute for Basic Science (IBS) Department of Chemistry Ulsan National Institute of Science and Technology 50, UNIST-gil, Eonyang-eup, Ulju-gun Ulsan Südkorea
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Zhang X, Pu M. Density functional theory study of the mechanism of a dipeptide-catalyzed intermolecular aldol reaction—the effects of steric repulsion interactions on stereoselectivity. RSC Adv 2016. [DOI: 10.1039/c5ra26808g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The mechanism of a dipeptide-catalyzed intermolecular aldol reaction was investigated using different calculated methods of DFT that few researches were concerned with and the detailed variations in the entire path were studied.
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Affiliation(s)
- Xiaofei Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
- Inner Mongolia Key Laboratory of Photoelectric Functional Materials
| | - Min Pu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
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18
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Water: the most versatile and nature’s friendly media in asymmetric organocatalyzed direct aldol reactions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.09.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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