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Sarkar A, Mistry S, Bhattacharya S, Natarajan S. Multistep Cascade Catalytic Reactions Employing Bifunctional Framework Compounds. Inorg Chem 2023. [PMID: 37393542 DOI: 10.1021/acs.inorgchem.3c01243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Multistep cascade reactions are important to achieve atom as well as step economy over conventional synthesis. This approach, however, is limited due to the incompatibility of the available reactive centers in a catalyst. In the present study, new MOF compounds, [Zn2(SDBA)(3-ATZ)2]·solvent, I and II, with tetrahedral Zn centers as good Lewis acidic sites and the free amino group of the 3-amino triazole ligand as a strong Lewis base center were shown to perform 4-step cascade/tandem reaction in a facile manner. Effective conversion of benzaldehyde dimethyl acetal in the presence of excess nitromethane at 100 °C in water to 1-(1,3-dinitropropan-2-yl) benzene was achieved in 10 h with yields of ∼95% (I) and ∼94% (II). This 4-step cascade reaction proceeds via deacetalization (Lewis acid), Henry (Lewis base), and Michael (Lewis base) reactions. The present work highlights the importance of spatially separated functional groups in multistep tandem catalysis─the examples of which are not common.
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Affiliation(s)
- Anupam Sarkar
- Solid State and Structural Chemistry Unit, Framework Solids Laboratory, Indian Institute of Science, Bangalore 560012, India
| | - Subhradeep Mistry
- Department of Chemistry, Hemvati Nandan Bahuguna Garhwal University, SRT Campus, New Tehri 249199, Uttarakhand, India
| | - Saurav Bhattacharya
- Department of Chemistry, BITS Pilani K. K. Birla Goa Campus, Goa 403726, India
| | - Srinivasan Natarajan
- Solid State and Structural Chemistry Unit, Framework Solids Laboratory, Indian Institute of Science, Bangalore 560012, India
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Mondal K, Mistri S. Schiff Base Based Metal Complexes: A Review of Their Catalytic Activity on Aldol and Henry Reaction. COMMENT INORG CHEM 2022. [DOI: 10.1080/02603594.2022.2094919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Keshab Mondal
- Department of Chemistry, Ramananda Centenary College, Laulara, Purulia, India
| | - Soumen Mistri
- Department of Chemistry, Ramananda Centenary College, Laulara, Purulia, India
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Valverde-González A, Fernández-Seriñan P, Matarín Á, Arnanz A, Sánchez F, Iglesias M. Porous Aromatic Frameworks Containing Binaphthyl-dihydroazepine units (cBAPAFs) as Catalytic Supports for Asymmetric Reactions. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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De S, Jain A, Barman P. Recent Advances in the Catalytic Applications of Chiral Schiff‐Base Ligands and Metal Complexes in Asymmetric Organic Transformations. ChemistrySelect 2022. [DOI: 10.1002/slct.202104334] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Soumik De
- Department of Chemistry National Institute of Technology Silchar Assam India
| | - Abhinav Jain
- Department of Chemistry National Institute of Technology Silchar Assam India
| | - Pranjit Barman
- Department of Chemistry National Institute of Technology Silchar Assam India
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Larionov VA, Feringa BL, Belokon YN. Enantioselective "organocatalysis in disguise" by the ligand sphere of chiral metal-templated complexes. Chem Soc Rev 2021; 50:9715-9740. [PMID: 34259242 DOI: 10.1039/d0cs00806k] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Asymmetric catalysis holds a prominent position among the important developments in chemistry during the 20th century. This was acknowledged by the 2001 Nobel Prize in chemistry awarded to Knowles, Noyori, and Sharpless for their development of chiral metal catalysts for organic transformations. The key feature of the catalysts was the crucial role of the chiral ligand and the nature of the metal ions, which promoted the catalytic conversions of the substrates via direct coordination. Subsequently the development of asymmetric organic catalysis opened new avenues to the synthesis of enantiopure compounds, avoiding any use of metal ions. Recently, an alternative approach to asymmetric catalysis emerged that relied on the catalytic functions of the ligands themselves boosted by coordination to metal ions. In other words, in these hybrid chiral catalysts the substrates are activated not by the metal ions but by the ligands. The activation and enantioselective control occurred via well-orchestrated and custom-tailored non-covalent interactions of the substrates with the ligand sphere of chiral metal complexes. In these metal-templated catalysts, the metal served either as a template (a purely structural role), or it constituted the exclusive source of chirality (metal-centred chirality due to the spatial arrangement of achiral or chiral bi-/tridentate ligands around an octahedral metal centre), and/or it increased the Brønsted acidity of the ligands. Although the field is still in its infancy, it represents an inspiring combination of both metal and organic catalysis and holds major unexplored potential to push the frontiers of asymmetric catalysis. Here we present an overview of this emerging field discussing the principles, applications and perspectives on the catalytic use of chiral metal complexes that operate as "organocatalysts in disguise". It has been demonstrated that these chiral metal complexes are efficient and provide high stereoselective control in asymmetric hydrogen bonding catalysis, phase-transfer catalysis, Brønsted acid/base catalysis, enamine catalysis, nucleophilic catalysis, and photocatalysis as well as bifunctional catalysis. Also, many of the catalysts have been identified as highly effective catalysts at remarkably low catalyst loadings. These hybrid systems offer many opportunities in the synthesis of chiral compounds and represent promising alternatives to metal-based and organocatalytic asymmetric transformations.
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Affiliation(s)
- Vladimir A Larionov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russian Federation.
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Kabes CQ, Lucas RF, Gunn JH, Gladysz JA. Chiral Cobalt(III) Tris(1,2-diamine) Catalysts That Incorporate Nitrogenous Base Containing Anions for the Bifunctional Activation of Nucleophiles and Electrophiles in Enantioselective Addition Reactions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01883] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Connor Q. Kabes
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Reagan F. Lucas
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Jack H. Gunn
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
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Parandeh-Khoozani N, Moradian M. Synthesis of nitroaldols through the Henry reaction using a copper(II)–Schiff base complex anchored on magnetite nanoparticles as a heterogeneous nanocatalyst. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1921748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Mohsen Moradian
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
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Gimeno L, Picardi G, Planchat A, Knight DA, Lamy de la Chapelle M, Humbert B, Queffélec C. Improving the rate of the copper-catalyzed Henry reaction by surface plasmon excitation of gold nanoparticles. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01788h] [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
Green plasmon excitation of colloidal Au nanoparticles, onto which a copper(ii) complex was grafted, in the presence of nitrobenzaldehyde and nitromethane in DMF, lead to the formation of the corresponding nitroaldol with high efficiency.
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Affiliation(s)
- Léa Gimeno
- CNRS, CEISAM UMR 6230, Université de Nantes, 2, Rue de la Houssinière, F-44000 Nantes, France
| | - Gennaro Picardi
- CNRS, CEISAM UMR 6230, Université de Nantes, 2, Rue de la Houssinière, F-44000 Nantes, France
| | - Aurélien Planchat
- CNRS, CEISAM UMR 6230, Université de Nantes, 2, Rue de la Houssinière, F-44000 Nantes, France
| | - D. Andrew Knight
- Department of Biomedical & Chemical Engineering & Science, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida, 32901, USA
| | - Marc Lamy de la Chapelle
- CNRS, UMR 6283, Institut des Molécules et Matériaux du Mans (IMMM), Université du Mans, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Bernard Humbert
- CNRS, Institut des Matériaux Jean Rouxel, Université de Nantes, 2, Rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Clémence Queffélec
- CNRS, CEISAM UMR 6230, Université de Nantes, 2, Rue de la Houssinière, F-44000 Nantes, France
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Sun X, Meng F, Su Q, Luo K, Ju P, Liu Z, Li X, Li G, Wu Q. New catalytically active conjugated microporous polymer bearing ordered salen-Cu and porphyrin moieties for Henry reaction in aqueous solution. Dalton Trans 2020; 49:13582-13587. [PMID: 32970055 DOI: 10.1039/d0dt02686g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A catalytically active conjugated microporous polymer (SP-CMP-Cu) was facilely constructed with condensation polymerization of salen-Cu (salen = N,N'-bis(3-tertbutyl-5-formylsalicylidene) ethylenediamine) and pyrrole. The as-synthesized SP-CMP-Cu was completely characterized by powder X-ray diffraction (PXRD), Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and energy-dispersive X-ray (EDX) analysis. The morphological features of SP-CMP-Cu were revealed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). According to the N2 adsorption/desorption isotherm, the Brunauer-Emmett-Teller (BET) surface area of SP-CMP-Cu was calculated to be 252 m2 g-1 with a total pore volume of 0.178 cm3 g-1. SP-CMP-Cu exhibited an outstanding catalytic performance for the Henry reaction in aqueous solutions with excellent conversion and good selectivity. Moreover, SP-CMP-Cu can be reused for up to five consecutive runs without any significant loss in its catalytic efficiency.
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Affiliation(s)
- Xiaoman Sun
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Fanyu Meng
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Qing Su
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Kexin Luo
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Pengyao Ju
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Ziqian Liu
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Xiaodong Li
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Guanghua Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Qiaolin Wu
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
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Mechanistic study in azide-alkyne cycloaddition (CuAAC) catalyzed by bifunctional trinuclear copper(I) pyrazolate complex: Shift in rate-determining step. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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