1
|
Saha J, Banerjee S, Malo S, Das AK, Das I. Thermally Activated Geometrical Regioselective E→Z Isomerization-Enabled Cascade Sequences of Conjugated Dienals: Experimental and DFT Studies. Chemistry 2023; 29:e202302335. [PMID: 37555389 DOI: 10.1002/chem.202302335] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/05/2023] [Accepted: 08/09/2023] [Indexed: 08/10/2023]
Abstract
The geometrical regioselective E→Z isomerization of a conjugated alkene under thermal activation pose a challenge due to microscopic reversibility. Herein we report that such reversibility issues can be circumvented by integrating E→Z isomerization with subsequent cyclization cascade, particularly in the absence of commonly employed light, acids, or metal-catalysts. Thus, linearly conjugated dienals in a mixture of toluene-alcohol (2 : 1) solvents or only with alcohol at 60-70 °C can be converted to γ-alkoxybutenolides in moderate to good yields. The intermediary 2Z,4E-isomer can be isolated, which includes the first example of isolating the regioselective isomerization product under thermal conditions. Density functional theory (DFT) studies have been employed to shed light on the feasibility of geometrical alkene isomerization and ensuing cascade sequences. It has been observed that the regioselective 2E,4E→2Z,4E isomerization of dienal is a thermodynamically facile (ΔG <0) process. Structural elucidation further reveals that the presence of a certain charge transfer and a non-covalent interaction may be the primary reasons for the enhanced stability of the 2Z,4E-isomer. The thermodynamic plausibility of the subsequent cascade reaction from the Z-isomer to the anticipated product in the presence of a polar protic solvent (here MeOH) is also explicated. Out of the two probable pathways, the "hemiacetal pathway" involving a relay proton transfer is kinetically more feasible due to the diminished activation barrier than the "conjugate addition pathway".
Collapse
Affiliation(s)
- Jayanta Saha
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata, 700032, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Soumadip Banerjee
- School of Mathematical and Computational Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
| | - Sidhartha Malo
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata, 700032, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Abhijit Kumar Das
- School of Mathematical and Computational Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
| | - Indrajit Das
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata, 700032, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| |
Collapse
|
2
|
Xue L, Liu W, Li S, Duchemin N, Lou M, Yuan J, Zhang H, Chen J, Yu W, Yang K, Hu YJ. On-DNA Morita-Baylis-Hillman Reaction: Accessing Targeted Covalent Inhibitor Motifs in DNA-Encoded Libraries. Bioconjug Chem 2023; 34:1366-1373. [PMID: 37418679 DOI: 10.1021/acs.bioconjchem.3c00138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
We herein present the first application of the on-DNA Morita-Baylis-Hillman (MBH) reaction for the creation of pharmaceutically relevant targeted covalent inhibitors (TCIs) with an α-hydroxyl Michael acceptor motif. Adapting a DNA-compatible organocatalytic process, this MBH reaction for covalent selection-capable DNA encoded library (DEL) synthesis grants access to densely functionalized and versatile precursors to explore novel chemical space for molecule recognition in drug discovery. Most importantly, this methodology sheds light on potentially unexpected reaction outcomes of the MBH reaction.
Collapse
Affiliation(s)
- Lijun Xue
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| | - Weijie Liu
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| | - Shu Li
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| | - Nicolas Duchemin
- Pharmaron U.K., Ltd., Innovation Park, West Cl, Hertford Rd, Hoddesdon EN11 9FH, United Kingdom
| | - Mengjia Lou
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| | - Jingyu Yuan
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| | - Huanqing Zhang
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| | - Junyun Chen
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| | - Weina Yu
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| | - Kexin Yang
- Pharmaron Beijing Co., Ltd., 6 Taihe Road, BDA, Beijing 100176, P.R. China
| | - Yun Jin Hu
- Pharmaron (Ningbo) Technology Development Co., Ltd. No. 800 Bin-Hai 4th Road, Hangzhou Bay New Zone, Ningbo, 315336, P.R. China
| |
Collapse
|
3
|
Kumari R, Jha AK, Goyal S, Maan R, Reddy SR, Easwar S. Acyl Transfer-Driven Rauhut-Currier Dimerization of Morita-Baylis-Hillman Ketones. J Org Chem 2023; 88:2023-2033. [PMID: 36753536 DOI: 10.1021/acs.joc.2c02244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
A serendipitous Rauhut-Currier dimerization of 1,1-disubstituted activated olefins derived from Morita-Baylis-Hillman adducts was observed in the presence of DABCO. The reaction is driven by the migration of an acyl group and produces multifunctionalized enol esters in yields greater than 90% in most cases, without necessitating column chromatographic purification. The acyl transfer is thought to proceed via a transition state typical of a Morita-Baylis-Hillman (MBH) reaction, supported by a brief mechanistic study involving computational calculations.
Collapse
Affiliation(s)
- Rajkiran Kumari
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer 305817, Rajasthan, India
| | - Ajit Kumar Jha
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer 305817, Rajasthan, India
| | - Sophiya Goyal
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer 305817, Rajasthan, India
| | - Reena Maan
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer 305817, Rajasthan, India
| | - S Rajagopala Reddy
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer 305817, Rajasthan, India
| | - Srinivasan Easwar
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer 305817, Rajasthan, India
| |
Collapse
|
4
|
Ütnier T, Celebi-Olcum N. Morita-Baylis-Hillman Reaction: How Do Optimal Enzyme Active Sites Compare with Organocatalysts. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00929c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Morita-Baylis-Hillman reaction attracts significant attention for the synthesis of highly functionalized compounds. It requires multiple catalytic elements for efficient catalysis, making it an appealing target for the design of a...
Collapse
|
5
|
Gondo N, Hyakutake R, Fujimura K, Ueda Y, Nakano K, Tsutsumi R, Yamanaka M, Kawabata T. Catalyst‐Dependent Rate‐Determining Steps in Regiodivergent Vinylogous Aza‐Morita‐Baylis‐Hillman Reactions with
N
‐Ts Imines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Naruhiro Gondo
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
| | - Ryuichi Hyakutake
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
| | - Koki Fujimura
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
| | - Katsuhiko Nakano
- Department of Chemistry and Research Center for Smart Molecules Rikkyo University 3-34-1 Nishi-ikebukuro Toshima-ku, Tokyo 171-8588 Japan
| | - Ryosuke Tsutsumi
- Department of Chemistry and Research Center for Smart Molecules Rikkyo University 3-34-1 Nishi-ikebukuro Toshima-ku, Tokyo 171-8588 Japan
| | - Masahiro Yamanaka
- Department of Chemistry and Research Center for Smart Molecules Rikkyo University 3-34-1 Nishi-ikebukuro Toshima-ku, Tokyo 171-8588 Japan
| | - Takeo Kawabata
- Institute for Chemical Research Kyoto University Gokasho, Uji, Kyoto 611-0011 Japan
- Department of Pharmaceutical Sciences International University of Health and Welfare 137-1 Enokizu Okawa, Fukuoka 831-8501 Japan
| |
Collapse
|
6
|
Das M, Gogoi AR, Sunoj RB. Molecular Insights on Solvent Effects in Organic Reactions as Obtained through Computational Chemistry Tools. J Org Chem 2021; 87:1630-1640. [PMID: 34752092 DOI: 10.1021/acs.joc.1c02222] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Molecular understanding of the role of protic solvents in a gamut of organic transformations can be developed using density functional and ab initio computational studies focused on the reaction mechanism. Inclusion of explicit solvent molecules in the vital TSs has been proven to be valuable toward improving the energetic estimates of organocatalytic as well as transition-metal-catalyzed organic reactions. Herein, we provide an overview of the importance of an explicit-implicit solvation model using a number of interesting examples.
Collapse
Affiliation(s)
- Manajit Das
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Achyut Ranjan Gogoi
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Raghavan B Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
7
|
Towards a converged strategy for including microsolvation in reaction mechanism calculations. J Comput Aided Mol Des 2021; 35:473-492. [PMID: 33420644 DOI: 10.1007/s10822-020-00366-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 11/28/2020] [Indexed: 01/27/2023]
Abstract
A major part of chemical conversions is carried out in the fluid phase, where an accurate modeling of the involved reactions requires to also take into account solvation effects. Implicit solvation models often cover these effects with sufficient accuracy but can fail drastically when specific solvent-solute interactions are important. In those cases, microsolvation, i.e., the explicit inclusion of one or more solvent molecules, is a commonly used strategy. Nevertheless, microsolvation also introduces new challenges-a consistent workflow as well as strategies how to systematically improve prediction performance are not evident. For the COSMO and COSMO-RS solvation models, this work proposes a simple protocol to decide if microsolvation is needed and how the corresponding molecular model has to look like. To demonstrate the improved accuracy of the approach, specific application examples are presented and discussed, i.e., the computation of aqueous pKa values and a mechanistic study of the methanol mediated Morita-Baylis-Hillman reaction.
Collapse
|
8
|
Takizawa S. Organocatalytic Synthesis of Highly Functionalized Heterocycles by Enantioselective aza-Morita-Baylis-Hillman-Type Domino Reactions. Chem Pharm Bull (Tokyo) 2020; 68:299-315. [PMID: 32238648 DOI: 10.1248/cpb.c19-00900] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Organocatalytic enantioselective domino reactions are an extremely attractive methodology, as their use enables the construction of complex chiral skeletons from readily available starting materials in two or more steps by a single operation under mild reaction conditions. Thus, these reactions can save both the quantity of chemicals and length of time typically required for the isolation and/or purification of synthetic intermediates. Additionally, no metal contamination of the products occurs, given that organocatalysts include no expensive or toxic metals. The aza-Morita-Baylis-Hillman (aza-MBH) reaction is an atom-economical carbon-carbon bond-forming reaction between α,β-unsaturated carbonyl compounds and imines mediated by Lewis base (LB) catalysts, such as nucleophilic phosphines and amines. aza-MBH products are functionalized chiral β-amino acid derivatives that are highly valuable as pharmaceutical raw materials. Although various enantioselective aza-MBH processes have been investigated, very few studies of aza-MBH-type domino reactions have been reported due to the complexity of the aza-MBH process, which involves a Michael/Mannich/H-transfer/β-elimination sequence. Accordingly, in this review article, our recent efforts in the development of enantioselective domino reactions initiated by MBH processes are described. In the domino reactions, chiral organocatalysts bearing Brønsted acid (BA) and/or LB units impart synergistic activation to substrates, leading to the easy synthesis of highly functionalized heterocycles (some of which have tetrasubstituted and/or quaternary carbon stereocenters) in high yield and enantioselectivity.
Collapse
Affiliation(s)
- Shinobu Takizawa
- Department of Synthetic Organic Chemistry, Artificial Intelligence Research Center, The Institute of Scientific and Industrial Research, Osaka University
| |
Collapse
|
9
|
Li W, Li C, Lyu Y. A computational mechanistic insight into H2 activation and CO2 reduction over β-Diketiminato-ligated group 13 metal complexes. J Catal 2019. [DOI: 10.1016/j.jcat.2019.03.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
10
|
Sheng Y, Regner M. Roles of Water Molecules and Counterion on HS - Sensing Reaction Utilizing a Pyrylium Derivative: A Computational Study. J Phys Chem A 2019; 123:3334-3343. [PMID: 30912942 DOI: 10.1021/acs.jpca.9b01288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this paper, we present a comprehensive computational study on the hydrogen sulfide ion (HS-) sensing mechanism in aqueous solution using pyrylium-thiopyrylium transformation. Explicit water molecules up to three water molecules are considered using supramolecular models. The effect of water bulk solvent is also taken into account according to the polarizable continuum model. Our results demonstrate that water molecules are directly involved in the sensing reactions by altering reaction mechanisms and dramatically lower the activation energies. The most favorable HS- sensing mechanism involves a 10-membered ring transition structure formed by three water molecules and one hydronium. The catalytic effects of water molecule(s) due to the alleviation of ring strain and the stabilization from deprotonated hydronium significantly lower the activation energy. The activation energies in aqueous solution decrease from 40.2 kcal/mol for the hydronium-only-catalyzed reaction to 15.7, 14.8, and 7.4 kcal/mol for one-water-, two-water-, and three-water-catalyzed mechanisms, respectively. In addition, the effect of the counterion tetrafluoroborate (BF4-) on the reaction mechanisms was also investigated. Our results demonstrate that the counterion BF4- most likely behaves as a spectator and has minor influence on the reaction mechanism.
Collapse
Affiliation(s)
- Yinghong Sheng
- Department of Chemistry and Physics, College of Arts and Sciences , Florida Gulf Coast University , 10501 FGCU Blvd. South , Fort Myers , Florida 33965 , United States
| | - Matthew Regner
- Department of Chemistry and Physics, College of Arts and Sciences , Florida Gulf Coast University , 10501 FGCU Blvd. South , Fort Myers , Florida 33965 , United States
| |
Collapse
|
11
|
Yuan B, Guo X, Wang G, Huang H, Zhang F, Xu J, He R. Theoretical investigation on the mechanism of Cu(ii)-catalyzed synthesis of 4-quinolones: effects of additives HOTf vs. HOTs. NEW J CHEM 2019. [DOI: 10.1039/c9nj00082h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydrogen-bond donor/proton-donor ability is revealed to be the primary factor that controls the catalytic capability of additives (HOTf vs. HOTs).
Collapse
Affiliation(s)
- Binfang Yuan
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Xiaogang Guo
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Guangzhao Wang
- College of Electronic Information Engineering
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials, Technology
- Yangtze Normal University
- Chongqing 408100
- China
| | - Huisheng Huang
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Fulan Zhang
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Jianhua Xu
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Rongxing He
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| |
Collapse
|
12
|
Lee J, Singh D, Ha HJ. Morita-Baylis-Hillman reaction of a chiral aziridine aldehyde. Org Biomol Chem 2018; 16:8048-8055. [PMID: 30183792 DOI: 10.1039/c8ob01630e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Morita-Baylis-Hillman reaction of (R)-1-((R)-1-phenylethyl)aziridine-2-carbaldehyde with alkyl acrylate was carried out under various conditions by changing solvents, bases, and alcohol additives. The reaction at room temperature under neat conditions (no solvent) with quinuclidine as an amine nucleophile, in the presence of benzyl alcohol as an additive, afforded a product, γ-(aziridin-2-yl)-β-hydroxy-α-methylene butanoate, in 97% yield with a diastereomeric ratio of anti and syn as 86 : 14.
Collapse
Affiliation(s)
- Jaedeok Lee
- Department of Chemistry, Hankuk University of Foreign Studies, Yongin, 17035 Korea.
| | | | | |
Collapse
|
13
|
Liu Z, Patel C, Harvey JN, Sunoj RB. Mechanism and reactivity in the Morita-Baylis-Hillman reaction: the challenge of accurate computations. Phys Chem Chem Phys 2018; 19:30647-30657. [PMID: 29116284 DOI: 10.1039/c7cp06508f] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A systematic density functional theory exploration of various reactive steps together with benchmark coupled cluster results are used to propose an accurate model of the mechanism of the Morita-Baylis-Hillman (MBH) reaction in organic chemistry. This reaction has attracted considerable interest from the synthetic and mechanistic points of view in recent years, with both computational and experimental mechanistic studies. It has recently (R. E. Plata and D. A. Singleton, J. Am. Chem. Soc., 2015, 137, 3811-3826) been correctly pointed out that previous computational studies failed to reproduce known mechanistic features of the reaction. The same study argued that computation is simply not able at the present time to provide accurate models for such reactions. This second claim is shown by our present work to overstate the problem: by using current 'state of the art' methodology, our results are fully consistent with observed behavior within the expected error bars of 1-5 kcal mol-1, far smaller than the errors reported in Plata and Singleton's study. On the basis of exhaustive calculations reported here, we suggest that our proposed approaches for modeling electronic structure, solvation, and entropy should be able to provide accurate predictions for many more reactions. We also suggest that reactions like the MBH reaction, where solvation and entropy effects are particularly large, are among the hardest for computational mechanistic studies.
Collapse
Affiliation(s)
- Zhen Liu
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium.
| | | | | | | |
Collapse
|
14
|
Raich L, Santos H, Gomes JC, Rodrigues MT, Galaverna R, Eberlin MN, Coelho F, Rovira C, Moyano A. Can an Alcohol Act As an Acid/Base Catalyst in Water Solution? An Experimental and Theoretical Study of Imidazole Catalysis of the Aqueous Morita–Baylis–Hillman Reaction. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lluís Raich
- Secció
de Química Orgànica, Departament de Química Inorgànica
i Orgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Catalonia, Spain
- Institut
de Química Teòrica i Computacional (IQTCUB), Facultat
de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Catalonia, Spain
| | - Hugo Santos
- Secció
de Química Orgànica, Departament de Química Inorgànica
i Orgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Catalonia, Spain
- Laboratory
of Synthesis of Natural Products and Drugs, Institute of Chemistry, University of Campinas, UNICAMP P.O. Box 6154, 13083-970, Campinas, SP, Brazil
| | - Juliana C. Gomes
- Laboratory
of Synthesis of Natural Products and Drugs, Institute of Chemistry, University of Campinas, UNICAMP P.O. Box 6154, 13083-970, Campinas, SP, Brazil
| | - Manoel T. Rodrigues
- Laboratory
of Synthesis of Natural Products and Drugs, Institute of Chemistry, University of Campinas, UNICAMP P.O. Box 6154, 13083-970, Campinas, SP, Brazil
| | - Renan Galaverna
- ThoMSon
Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas, UNICAMP P.O.
Box 6154, 13083-970, Campinas, SP, Brazil
| | - Marcos N. Eberlin
- ThoMSon
Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas, UNICAMP P.O.
Box 6154, 13083-970, Campinas, SP, Brazil
| | - Fernando Coelho
- Laboratory
of Synthesis of Natural Products and Drugs, Institute of Chemistry, University of Campinas, UNICAMP P.O. Box 6154, 13083-970, Campinas, SP, Brazil
| | - Carme Rovira
- Secció
de Química Orgànica, Departament de Química Inorgànica
i Orgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Catalonia, Spain
- Institut
de Química Teòrica i Computacional (IQTCUB), Facultat
de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Catalonia, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys, 23, 08018 Barcelona, Catalonia, Spain
| | - Albert Moyano
- Secció
de Química Orgànica, Departament de Química Inorgànica
i Orgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Catalonia, Spain
| |
Collapse
|
15
|
Effects of base strength on the copper-catalyzed cycloisomerization of propargylic acetates to form indolizines: A DFT study. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
16
|
Yuan B, He R, Shen W, Li M. Influence of Base Strength on the Proton-Transfer Reaction by Density Functional Theory. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700562] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Binfang Yuan
- School of Chemistry and Chemical Engineering; Southwest University; No. 2 Tiansheng Road 400715 Chongqing BeiBei District P. R.China
| | - Rongxing He
- School of Chemistry and Chemical Engineering; Southwest University; No. 2 Tiansheng Road 400715 Chongqing BeiBei District P. R.China
| | - Wei Shen
- School of Chemistry and Chemical Engineering; Southwest University; No. 2 Tiansheng Road 400715 Chongqing BeiBei District P. R.China
| | - Ming Li
- School of Chemistry and Chemical Engineering; Southwest University; No. 2 Tiansheng Road 400715 Chongqing BeiBei District P. R.China
| |
Collapse
|
17
|
Mechanisms and stereoselectivities of phosphine-catalyzed Rauhut-Currier reaction between N -phenylmaleimide and 2-benzoyl acrylate: A computational investigation. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.01.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
18
|
Jin H, Zhang Q, Li E, Jia P, Li N, Huang Y. Phosphine-catalyzed intramolecular Rauhut–Currier reaction: enantioselective synthesis of hydro-2H-indole derivatives. Org Biomol Chem 2017; 15:7097-7101. [DOI: 10.1039/c7ob01820g] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A highly enantioselective intramolecular Rauhut–Currier reaction catalyzed by a multifunctional chiral aminophosphine catalyst was reported.
Collapse
Affiliation(s)
- Hongxing Jin
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Qinglong Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Erqing Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Penghao Jia
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Ning Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| |
Collapse
|
19
|
Kenny R, Liu F. Cooperative Trifunctional Organocatalysts for Proficient Proton Transfer Reactions. CHEM REC 2016; 17:535-553. [PMID: 27775874 DOI: 10.1002/tcr.201600106] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 09/12/2016] [Indexed: 02/02/2023]
Abstract
Cooperativity is essential to proficient catalysis, and designing biomimetic, cooperative catalysis is a major avenue to finding new and efficient chemical reactions with practical applications. One challenge in designed cooperative catalysis is to access high catalytic proficiency (large enhancement in both rate and enantioselectivity) as seen in biocatalysis. Here described is an approach of developing and investigating trifunctional organocatalysts with three distinct catalytic functionalities, in order to understand how cooperativity could be organized for enantioselective activation that confers the observed proficiency in a tandem Michael-aldol-proton transfer elimination model reaction. This in future may assist in finding not just cooperative but also regulated catalysis to expand the level of catalytic complexity and efficiency in biomimetic systems.
Collapse
Affiliation(s)
- Ryan Kenny
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Fei Liu
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales, Australia
| |
Collapse
|
20
|
de Lima Batista AP, Coelho F, Braga AAC. DFT exploration of mechanistic pathways of an aza-Morita–Baylis–Hillman reaction. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1946-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
21
|
Li W, Yang N, Lyu Y. Theoretical Insights into the Catalytic Mechanism of N-Heterocyclic Olefins in Carboxylative Cyclization of Propargyl Alcohol with CO2. J Org Chem 2016; 81:5303-13. [PMID: 27266858 DOI: 10.1021/acs.joc.6b00559] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weiyi Li
- School
of Science, Xihua University, Chengdu, Sichuan 610039, P. R. China
| | - Na Yang
- Institute
of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, P. R. China
| | - Yajing Lyu
- School
of Science, Xihua University, Chengdu, Sichuan 610039, P. R. China
| |
Collapse
|
22
|
Li W, Yang N, Lyu Y. A mechanistic study on guanidine-catalyzed chemical fixation of CO2 with 2-aminobenzonitrile to quinazoline-2,4(1H,3H)-dione. Org Chem Front 2016. [DOI: 10.1039/c6qo00085a] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Both basicity of TMG and acidity of the [TMGH]+ guanidinium are crucial for a reaction.
Collapse
Affiliation(s)
- Weiyi Li
- School of Science
- Xihua University
- Chengdu
- P. R. China
| | - Na Yang
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Yajing Lyu
- School of Science
- Xihua University
- Chengdu
- P. R. China
| |
Collapse
|
23
|
Yuan B, He R, Shen W, Hu W, Li M. DFT study on the CuBr-catalyzed synthesis of highly substituted furans: effects of solvent DMF, substrate MeOH, trace H2O and the metallic valence state of Cu. RSC Adv 2016. [DOI: 10.1039/c5ra24967h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Comparing the catalytic abilities of DMF, MeOH, and H2O for intermolecular nucleophilic addition and H-transfer process.
Collapse
Affiliation(s)
- Binfang Yuan
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Rongxing He
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Wei Shen
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Weixia Hu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ming Li
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| |
Collapse
|
24
|
Salin AV, Il’in AV, Shamsutdinova FG, Fatkhutdinov AR, Galkin VI, Islamov DR, Kataeva ON. Phosphine-catalyzed addition of P(O)–H compounds to ethyl phenylpropiolate. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.137] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
25
|
Wei Y, Zhao WT, Yang YL, Zhang Z, Shi M. Allenic Esters from Cyclopropenones by Lewis Base Catalysis: Substrate Scope, the Asymmetric Variant from the Dynamic Kinetic Asymmetric Transformation, and Mechanistic Studies. ChemCatChem 2015. [DOI: 10.1002/cctc.201500466] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yin Wei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Wen-Tao Zhao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Yuan-Liang Yang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Zhen Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| |
Collapse
|
26
|
Yuan B, He R, Shen W, Huang C, Li M. Mechanistic Insights into the Cu(I)- and Cu(II)-Catalyzed Cyclization of o-Alkynylbenzaldehydes: The Solvent DMF and Oxidation State of Copper Affect the Reaction Mechanism. J Org Chem 2015; 80:6553-63. [DOI: 10.1021/acs.joc.5b00523] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Binfang Yuan
- Key Laboratory
of Luminescence
and Real-Time Analytical chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Rongxing He
- Key Laboratory
of Luminescence
and Real-Time Analytical chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Wei Shen
- Key Laboratory
of Luminescence
and Real-Time Analytical chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Cheng Huang
- Key Laboratory
of Luminescence
and Real-Time Analytical chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ming Li
- Key Laboratory
of Luminescence
and Real-Time Analytical chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| |
Collapse
|
27
|
Li H, Zheng B, Huang KW. A new class of PN3-pincer ligands for metal–ligand cooperative catalysis. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.11.010] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
28
|
Plata RE, Singleton DA. A case study of the mechanism of alcohol-mediated Morita Baylis-Hillman reactions. The importance of experimental observations. J Am Chem Soc 2015; 137:3811-26. [PMID: 25714789 PMCID: PMC4379969 DOI: 10.1021/ja5111392] [Citation(s) in RCA: 312] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Indexed: 12/12/2022]
Abstract
The mechanism of the Morita Baylis-Hillman reaction has been heavily studied in the literature, and a long series of computational studies have defined complete theoretical energy profiles in these reactions. We employ here a combination of mechanistic probes, including the observation of intermediates, the independent generation and partitioning of intermediates, thermodynamic and kinetic measurements on the main reaction and side reactions, isotopic incorporation from solvent, and kinetic isotope effects, to define the mechanism and an experimental mechanistic free-energy profile for a prototypical Morita Baylis-Hillman reaction in methanol. The results are then used to critically evaluate the ability of computations to predict the mechanism. The most notable prediction of the many computational studies, that of a proton-shuttle pathway, is refuted in favor of a simple but computationally intractable acid-base mechanism. Computational predictions vary vastly, and it is not clear that any significant accurate information that was not already apparent from experiment could have been garnered from computations. With care, entropy calculations are only a minor contributor to the larger computational error, while literature entropy-correction processes lead to absurd free-energy predictions. The computations aid in interpreting observations but fail utterly as a replacement for experiment.
Collapse
Affiliation(s)
- R. Erik Plata
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Daniel A. Singleton
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| |
Collapse
|
29
|
Theoretical study of the mechanism of highly diastereoselective formation of a strained 3-azabicyclo[3.2.0]heptane derivative. J Mol Model 2015; 21:86. [PMID: 25773701 DOI: 10.1007/s00894-015-2636-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 02/22/2015] [Indexed: 10/23/2022]
Abstract
The mechanism of multicomponent reactions, especially stereoselective ones is of special importance in organic synthesis. The mechanism of diastereoselective formation of a highly strained 3-azabicyclo[3.2.0]heptane derivative through a catalyst-free multistep reaction is studied by DFT calculations in solution phase. The calculations on the two proposed mechanisms (pathways A and B) showed that the iminium ion, the relatively high energy species is not the approprite reaction intermediate. On the other hand, the lower activation energy of pathway B, as compared to that of pathway A, makes it as the preferred mechanism. The high stereoselectivity of the stepwise reaction may be attributed to the fact that the rate limiting and stereodifferentiating steps are the same. These findings may also account the formation of by-product in the experimental observations.
Collapse
|
30
|
Singh A, Kumar A. Kinetic and mechanistic investigations of the Baylis–Hillman reaction in ionic liquids. RSC Adv 2015. [DOI: 10.1039/c4ra14764b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
We report here a quantitative study of the kinetics and mechanism of the Baylis–Hillman reaction in the presence of ionic liquids as solvent media.
Collapse
Affiliation(s)
- Anshu Singh
- National Chemical Laboratory
- Physical Chemistry
- Pune
- India
| | - Anil Kumar
- National Chemical Laboratory
- Physical Chemistry
- Pune
- India
| |
Collapse
|
31
|
Abstract
The Baylis–Hillman reaction of HMF was investigated in various bio-based solvent systems and in water.
Collapse
Affiliation(s)
- Jia-Neng Tan
- Université de Lyon
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires
- ICBMS
- UMR5246
- CNRS
| | - Mohammed Ahmar
- Université de Lyon
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires
- ICBMS
- UMR5246
- CNRS
| | - Yves Queneau
- Université de Lyon
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires
- ICBMS
- UMR5246
- CNRS
| |
Collapse
|
32
|
Yempala T, Davalgar VD, Gayatri G, Sripadi P, Kantevari S. Insights into the Morita–Baylis–Hillman reaction of isomeric dibenzofuran carbaldehydes: a theoretical and mass spectral study. RSC Adv 2015. [DOI: 10.1039/c5ra14486h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Systematic theoretical and mass spectral investigations on the faster Morita–Baylis–Hillman (MBH) reaction of dibenzofuran-4-carbaldehyde (2) compared to its isomer, dibenzofuran-2-carbaldehyde (1) are described.
Collapse
Affiliation(s)
- Thirumal Yempala
- Organic Chemistry Division-II (C P C Division)
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Vijay Darshan Davalgar
- National Centre for Mass Spectrometry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Gaddamanugu Gayatri
- Centre for Molecular Modelling
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Prabhakar Sripadi
- National Centre for Mass Spectrometry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Srinivas Kantevari
- Organic Chemistry Division-II (C P C Division)
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| |
Collapse
|
33
|
Rodrigues TS, Silva VHC, Lalli PM, de Oliveira HCB, da Silva WA, Coelho F, Eberlin MN, Neto BAD. Morita–Baylis–Hillman Reaction: ESI-MS(/MS) Investigation with Charge Tags and Ionic Liquid Effect Origin Revealed by DFT Calculations. J Org Chem 2014; 79:5239-48. [DOI: 10.1021/jo500799j] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thyago S. Rodrigues
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, P.O.
Box 4478, 70904-970 Brasília, DF, Brazil
| | - Valter H. C. Silva
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, P.O.
Box 4478, 70904-970 Brasília, DF, Brazil
- Unidade
Universitária de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, P.O. Box 459, 75001-970 Anápolis, GO, Brazil
| | - Priscila M. Lalli
- ThoMSon
Mass Spectrometry Laboratory, University of Campinas-UNICAMP, 13083-970 Campinas, SP, Brazil
| | - Heibbe C. B. de Oliveira
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, P.O.
Box 4478, 70904-970 Brasília, DF, Brazil
| | - Wender A. da Silva
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, P.O.
Box 4478, 70904-970 Brasília, DF, Brazil
| | - Fernando Coelho
- ThoMSon
Mass Spectrometry Laboratory, University of Campinas-UNICAMP, 13083-970 Campinas, SP, Brazil
| | - Marcos N. Eberlin
- ThoMSon
Mass Spectrometry Laboratory, University of Campinas-UNICAMP, 13083-970 Campinas, SP, Brazil
| | - Brenno A. D. Neto
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, P.O.
Box 4478, 70904-970 Brasília, DF, Brazil
| |
Collapse
|
34
|
Osuna S, Dermenci A, Miller SJ, Houk KN. The roles of counterion and water in a stereoselective cysteine-catalyzed Rauhut-Currier reaction: a challenge for computational chemistry. Chemistry 2013; 19:14245-53. [PMID: 24038400 PMCID: PMC3918516 DOI: 10.1002/chem.201300745] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 07/16/2013] [Indexed: 11/12/2022]
Abstract
The stereoselective Rauhut-Currier (RC) reaction catalyzed by a cysteine derivative has been explored computationally with density functional theory (M06-2X). Both methanethiol and a chiral cysteine derivative were studied as nucleophiles. The complete reaction pathway involves rate-determining elimination of the thiol catalyst from the Michael addition product. The stereoselective Rauhut-Currier reaction, catalyzed by a cysteine derivative as a nucleophile, has also been studied in detail. This reaction was experimentally found to be extremely sensitive to the reaction conditions, such as the number of water equivalents and the effect of potassium counterion. The E1cB process for catalyst elimination has been explored computationally for the eight possible stereoisomers. The effect of explicit water solvation and the presence of counterion (either K(+) or Na(+) ) has been studied for the lowest energy enantiomer pair (1S, 2R, 3S)/(1R, 2S, 3R).
Collapse
Affiliation(s)
- Sílvia Osuna
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095 (USA).
| | | | | | | |
Collapse
|
35
|
Salin AV, Fatkhutdinov AR, Il'in AV, Sotov EI, Sobanov AA, Galkin VI, James BR. Mechanistic aspects of reactions of triphenylphosphine with electron-deficient alkenes in acetic acid solution. J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.3154] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alexey V. Salin
- A. Butlerov Institute of Chemistry; Kazan Federal University; Kazan 420008 Russia
| | | | - Anton V. Il'in
- A. Butlerov Institute of Chemistry; Kazan Federal University; Kazan 420008 Russia
| | - Evgeniy I. Sotov
- A. Butlerov Institute of Chemistry; Kazan Federal University; Kazan 420008 Russia
| | - Alexandr A. Sobanov
- A. Butlerov Institute of Chemistry; Kazan Federal University; Kazan 420008 Russia
| | - Vladimir I. Galkin
- A. Butlerov Institute of Chemistry; Kazan Federal University; Kazan 420008 Russia
| | - Brian R. James
- Department of Chemistry; University of British Columbia; Vancouver V6T 1Z1 British Columbia Canada
| |
Collapse
|
36
|
Yao Y, Li JL, Zhou QQ, Dong L, Chen YC. Enantioselective aza-Morita-Baylis-Hillman reaction with ketimines and acrolein catalyzed by organic assemblies. Chemistry 2013; 19:9447-51. [PMID: 23740616 DOI: 10.1002/chem.201301558] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Indexed: 02/05/2023]
Affiliation(s)
- Yuan Yao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education, West China School of Pharmacy and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | | | | | | | | |
Collapse
|
37
|
Wei Y, Shi M. Recent advances in organocatalytic asymmetric Morita-Baylis-Hillman/aza-Morita-Baylis-Hillman reactions. Chem Rev 2013; 113:6659-90. [PMID: 23679920 DOI: 10.1021/cr300192h] [Citation(s) in RCA: 572] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yin Wei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | | |
Collapse
|
38
|
Lee R, Zhong F, Zheng B, Meng Y, Lu Y, Huang KW. The origin of enantioselectivity in the l-threonine-derived phosphine–sulfonamide catalyzed aza-Morita–Baylis–Hillman reaction: effects of the intramolecular hydrogen bonding. Org Biomol Chem 2013; 11:4818-24. [DOI: 10.1039/c3ob40144h] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
39
|
Facile synthesis of α-methylidene-γ-butyrolactones: intramolecular Rauhut–Currier reaction promoted by chiral acid–base organocatalysts. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.046] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
40
|
Sunoj RB, Anand M. Microsolvated transition state models for improved insight into chemical properties and reaction mechanisms. Phys Chem Chem Phys 2012; 14:12715-36. [PMID: 22893252 DOI: 10.1039/c2cp41719g] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Over the years, several methods have been developed to effectively represent the chemical behavior of solutes in solvents. The environmental effects arising due to solvation can generally be achieved either through inclusion of discrete solvent molecules or by inscribing into a cavity in a homogeneous and continuum dielectric medium. In both these approaches of computational origin, the perturbations on the solute induced by the surrounding solvent are at the focus of the problem. While the rigor and method of inclusion of solvent effects vary, such solvation models have found widespread applications, as evident from modern chemical literature. A hybrid method, commonly referred to as cluster-continuum model (CCM), brings together the key advantages of discrete and continuum models. In this perspective, we intend to highlight the latent potential of CCM toward obtaining accurate estimates on a number of properties as well as reactions of contemporary significance. The objective has generally been achieved by choosing illustrative examples from the literature, besides expending efforts to bring out the complementary advantages of CCM as compared to continuum or discrete solvation models. The majority of examples emanate from the prevalent applications of CCM to organic reactions, although a handful of interesting organometallic reactions have also been discussed. In addition, increasingly accurate computations of properties like pK(a) and solvation of ions obtained using the CCM protocol are also presented.
Collapse
Affiliation(s)
- Raghavan B Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | | |
Collapse
|
41
|
Anand M, Sunoj RB. Role of Explicit Solvents in Palladium(II)-Catalyzed Alkoxylation of Arenes: An Interesting Paradigm for Preferred Outer-Sphere Reductive Elimination over Inner-Sphere Pathway. Organometallics 2012. [DOI: 10.1021/om300681e] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Megha Anand
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Raghavan B. Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
42
|
Kunnikuruvan S, Batra S, Nair NN. Enhancing the Reaction Rates of Morita-Baylis-Hillman Reaction in Heterocyclic Aldehydes by Substitutions. Chemphyschem 2012; 13:3723-30. [DOI: 10.1002/cphc.201200372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Indexed: 11/11/2022]
|
43
|
Martelli G, Orena M, Rinaldi S. A Bifunctional β-Isocupreidine Derivative as Catalyst for the Enantioselective Morita-Baylis-Hillman Reaction and a Mechanistic Rationale for Enantioselectivity. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200405] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
44
|
Takizawa S, Nguyen TMN, Grossmann A, Enders D, Sasai H. Enantioselective Synthesis of α-Alkylidene-γ-Butyrolactones: Intramolecular Rauhut-Currier Reaction Promoted by Acid/Base Organocatalysts. Angew Chem Int Ed Engl 2012; 51:5423-6. [DOI: 10.1002/anie.201201542] [Citation(s) in RCA: 165] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Indexed: 12/18/2022]
|
45
|
Takizawa S, Nguyen TMN, Grossmann A, Enders D, Sasai H. Enantioselective Synthesis of α-Alkylidene-γ-Butyrolactones: Intramolecular Rauhut-Currier Reaction Promoted by Acid/Base Organocatalysts. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201542] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
46
|
Cheong PHY, Legault CY, Um JM, Çelebi-Ölçüm N, Houk KN. Quantum mechanical investigations of organocatalysis: mechanisms, reactivities, and selectivities. Chem Rev 2011; 111:5042-137. [PMID: 21707120 PMCID: PMC3154597 DOI: 10.1021/cr100212h] [Citation(s) in RCA: 429] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Paul Ha-Yeon Cheong
- Oregon State University, Department of Chemistry, 153 Gilbert Hall, Corvallis, OR 97331-4003 USA
| | - Claude Y. Legault
- University of Sherbrooke, Department of Chemistry, 2500 boul. de l’Université, local D1-3029, Sherbrooke (Québec) J1K 2R1 CANADA
| | - Joann M. Um
- University of California Los Angeles, Department of Chemistry and Biochemistry, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569 USA
| | - Nihan Çelebi-Ölçüm
- University of California Los Angeles, Department of Chemistry and Biochemistry, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569 USA
| | - K. N. Houk
- University of California Los Angeles, Department of Chemistry and Biochemistry, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569 USA
| |
Collapse
|
47
|
Verma P, Patni PA, Sunoj RB. Mechanistic Insights on N-Heterocyclic Carbene-Catalyzed Annulations: The Role of Base-Assisted Proton Transfers. J Org Chem 2011; 76:5606-13. [DOI: 10.1021/jo200560t] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
48
|
Kilgore UJ, Roberts JAS, Pool DH, Appel AM, Stewart MP, DuBois MR, Dougherty WG, Kassel WS, Bullock RM, DuBois DL. [Ni(PPh2NC6H4X2)2]2+Complexes as Electrocatalysts for H2Production: Effect of Substituents, Acids, and Water on Catalytic Rates. J Am Chem Soc 2011; 133:5861-72. [DOI: 10.1021/ja109755f] [Citation(s) in RCA: 328] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
49
|
Zhao L, Chen XY, Ye S, Wang ZX. Computational Mechanistic Study of PMe3 and N-Heterocyclic Carbene Catalyzed Intramolecular Morita−Baylis−Hillman-Like Cycloalkylations: The Origins of the Different Reactivity. J Org Chem 2011; 76:2733-43. [DOI: 10.1021/jo200087u] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Lili Zhao
- College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiang Yu Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Song Ye
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhi-Xiang Wang
- College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
50
|
Takizawa S, Inoue N, Sasai H. An enantioselective organocatalyzed aza-MBH domino process: application to the facile synthesis of tetrahydropyridines. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.11.045] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|