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Chauhan P, Chauhan A, Shankar R. Carbon-Sulfur Bond Cleavage in Methanesulfonate on Diorganotin Quinaldate Platform - Synthesis and Characterization of [(n-Bu 2SnL) 2SO 4]. Chem Asian J 2024; 19:e202400013. [PMID: 38353128 DOI: 10.1002/asia.202400013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/13/2024] [Indexed: 02/29/2024]
Abstract
The synthesis of mixed ligand di-n-butyltin complexes, [(n-Bu2SnL1-3)2SO4], 2-4 (HL1-3=2-quinoline/ 1-isoquinoline/ 4-methoxy-2-quinoline carboxylic acid) has been realized by reacting n-Bu2Sn(OMe)OSO2Me, 1 a with the corresponding quinaldic acid under solvothermal conditions. The observed transformation of methane sulfonate to sulfate anion represents a rare example of C-S bond cleavage on the organotin scaffolds, n-Bu2Sn(L1-3)OSO2Me, which have been identified as en route intermediates by NMR and X-ray crystallography. Analogous reaction when extended with Me2Sn(OMe)OSO2Me, 1 b and HL2 yields [(Me2Sn)2(L2)3(OSO2Me)], 5 as partially disproportionated product of Me2Sn(L2)OSO2Me. The solid-state structures of 2-5 reveal variable modes of coordination of the ligands to afford molecular and polymeric motifs.
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Affiliation(s)
- Priyanka Chauhan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Aishwarya Chauhan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Ravi Shankar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
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Putro WS, Munakata Y, Ijima S, Shigeyasu S, Hamura S, Matsumoto S, Mishima T, Tomishige K, Choi JC, Fukaya N. Synthesis of diethyl carbonate from CO2 and orthoester promoted by a CeO2 catalyst and ethanol. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2021.101818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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de Andrade KN, da Costa LM, de M Carneiro JW. Formation of Dimethyl Carbonate from CO 2 and Methanol Catalyzed by Me 2SnO: A Density Functional Theory Approach. J Phys Chem A 2021; 125:2413-2424. [PMID: 33759531 DOI: 10.1021/acs.jpca.0c10796] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The conversion of CO2 into dimethyl carbonate (DMC) is an environmental and industrial appealing topic because it contributes to reduce the emissions of CO2 and to increase its use as raw material. In the present study we employed the CAM-B3LYP/def2-SVP DFT approach to evaluate the thermodynamic and kinetic parameters for the catalytic conversion of CO2 and methanol into DMC. Starting with the activation of four methanol molecules by the [Me2SnO]2 dimer, we computed all the stationary points along the pathway to convert CO2 and methanol into the DMC. The capture of two CO2 molecules is promoted by an alkoxitin intermediate, in an exothermic process, with low activation energy. Formation of a first DMC occurs after an intramolecular rerrangement involving a tetrahedral intermediate. The formation of a second DMC may occur either in a process similar to the first one or by dimerization of the hemicarbonate formed after releasing the first DMC. In this pathway, the [Me2(OH)SnO(OMe)SnMe2]2 complex is formed. This complex is less reactive than [Me2Sn(OMe)2]2 but still conserves the catalytic activity. Identification of this mechanism suggests that the catalytic action of Me2SnO can be improved by modulating the formation of the final [Me2(OH)SnO(OMe)SnMe2]2 complex.
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Affiliation(s)
- Karine N de Andrade
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n, 24020-141 Niterói, RJ, Brazil
| | - Leonardo M da Costa
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n, 24020-141 Niterói, RJ, Brazil
| | - José Walkimar de M Carneiro
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n, 24020-141 Niterói, RJ, Brazil
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Putro WS, Ikeda A, Shigeyasu S, Hamura S, Matsumoto S, Lee VY, Choi JC, Fukaya N. Sustainable Catalytic Synthesis of Diethyl Carbonate. CHEMSUSCHEM 2021; 14:842-846. [PMID: 33230917 DOI: 10.1002/cssc.202002471] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/20/2020] [Indexed: 06/11/2023]
Abstract
New sustainable approaches should be developed to overcome equilibrium limitation of dialkyl carbonate synthesis from CO2 and alcohols. Using tetraethyl orthosilicate (TEOS) and CO2 with Zr catalysts, we report the first example of sustainable catalytic synthesis of diethyl carbonate (DEC). The disiloxane byproduct can be reverted to TEOS. Under the same conditions, DEC can be synthesized using a wide range of alkoxysilane substrates by investigating the effects of the number of ethoxy substituent in alkoxysilane substrates, alkyl chain, and unsaturated moiety on the fundamental property of this reaction. Mechanistic insights obtained by kinetic studies, labeling experiments, and spectroscopic investigations reveal that DEC is generated via nucleophilic ethoxylation of a CO2 -inserted Zr catalyst and catalyst regeneration by TEOS. The unprecedented transformation offers a new approach toward a cleaner route for DEC synthesis using recyclable alkoxysilane.
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Affiliation(s)
- Wahyu S Putro
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1, Higashi, Japan
| | - Akira Ikeda
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1, Higashi, Japan
| | | | | | | | - Vladimir Ya Lee
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Jun-Chul Choi
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1, Higashi, Japan
| | - Norihisa Fukaya
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1, Higashi, Japan
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Alonso de la Peña M, Merzoud L, Lamine W, Tuel A, Chermette H, Christ L. Robust pyrrole-Schiff base Zinc complexes as novel catalysts for the selective cycloaddition of CO2 to epoxides. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2020.101380] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Affiliation(s)
- José R. Fernández
- Institute of Carbon Science and Technology (INCAR-CSIC), Francisco Pintado Fe 26, 33011 Oviedo, Spain
| | - Susana Garcia
- Research Center for Carbon Solutions (RCCS), School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom
| | - Eloy S. Sanz-Pérez
- Department of Chemical, Energy, and Mechanical Technology, ESCET. Rey Juan Carlos University. C/Tulipán s/n, 28933 Móstoles, Madrid, Spain
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