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Saikia S, Devi R, Gogoi P, Saikia L, Choudary BM, Raja T, Deka P, Deka RC. Regioselective Friedel-Crafts Acylation Reaction Using Single Crystalline and Ultrathin Nanosheet Assembly of Scrutinyite-SnO 2. ACS OMEGA 2022; 7:32225-32237. [PMID: 36120068 PMCID: PMC9476169 DOI: 10.1021/acsomega.2c03555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
Peculiar physicochemical properties of two-dimensional (2D) nanomaterials have attracted research interest in developing new synthetic technology and exploring their potential applications in the field of catalysis. Moreover, ultrathin metal oxide nanosheets with atomic thickness exhibit abnormal surficial properties because of the unique 2D confinement effect. In this work, we present a facile and general approach for the synthesis of single crystalline and ultrathin 2D nanosheets assembly of scrutinyite-SnO2 through a simple solvothermal method. The structural and compositional characterization using X-ray diffraction (Rietveld refinement analysis), high-resolution transmission electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and so on reveal that the as-synthesized 2D nanosheets are ultrathin and single crystallized in the scrutinyite-SnO2 phase with high purity. The ultrathin SnO2 nanosheets show predominant growth in the [011] direction on the main surface having a thickness of ca. 1.3 nm. The SnO2 nanosheets are further employed for the regioselective Friedel-Crafts acylation to synthesize aromatic ketones that have potential significance in chemical industry as synthetic intermediates of pharmaceuticals and fine chemicals. A series of aromatic substrates acylated over the SnO2 nanosheets have afforded the corresponding aromatic ketones with up to 92% yield under solvent-free conditions. Comprehensive catalytic investigations display the SnO2 nanosheet assembly as a better catalytic material compared to the heterogeneous metal oxide catalysts used so far in the view of its activity and reusability in solvent-free reaction conditions.
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Affiliation(s)
- Sudakhina Saikia
- Department
of Chemical Sciences, Tezpur University, Napaam, Tezpur 784028, India
| | - Rasna Devi
- Department
of Chemical Sciences, Tezpur University, Napaam, Tezpur 784028, India
| | - Pranjal Gogoi
- Catalysis
and Inorganic Chemistry Division, CSIR-National
Chemical Laboratory, Pune 411008, India
| | - Lakshi Saikia
- Materials
Sciences and Technology Division, CSIR-North
East Institute of Science and Technology, Jorhat 785006, India
| | | | - Thirumalaiswamy Raja
- Catalysis
and Inorganic Chemistry Division, CSIR-National
Chemical Laboratory, Pune 411008, India
| | - Pangkita Deka
- Department
of Chemical Sciences, Tezpur University, Napaam, Tezpur 784028, India
- Department
of Chemistry, Jorhat Engineering College, Garmur, Jorhat 785007, India
| | - Ramesh C. Deka
- Department
of Chemical Sciences, Tezpur University, Napaam, Tezpur 784028, India
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2
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Ubale AS, Shaikh MA, Gnanaprakasam B. Sequential Oxidative Fragmentation and Skeletal Rearrangement of Peroxides for the Synthesis of Quinazolinone Derivatives. J Org Chem 2021; 86:9621-9636. [PMID: 34232051 DOI: 10.1021/acs.joc.1c00889] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
For the first time, the sequential reaction of peroxyoxindole that involves base-promoted oxidative fragmentation to isocyanate formation and primary amine or amino alcohol accelerated skeletal rearrangement to synthesize exo-olefinic-substituted quinazolinone or oxazoloquinazolinone is reported. The advantages of this new reaction include a broad substrate scope and transition-metal-free and room-temperature conditions. The formation of the isocyanate as a key intermediate that accelerates oxidative skeletal rearrangement has been confirmed by trapping experiments and spectroscopic evidence.
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Affiliation(s)
- Akash S Ubale
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Moseen A Shaikh
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Boopathy Gnanaprakasam
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
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3
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Smolobochkin AV, Gazizov AS, Burilov AR, Pudovik MA, Sinyashin OG. Advances in the synthesis of heterocycles bearing an endocyclic urea moiety. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4988] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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4
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Zhang XY, Dou PH, Lu WY, You Y, Zhao JQ, Wang ZH, Yuan WC. Benzylidene succinimides as 3C synthons for the asymmetric tandem Mannich reaction/transamidation of cyclic trifluoromethyl ketimines to obtain F 3C-containing polycyclic dihydroquinazolinones. Chem Commun (Camb) 2021; 57:2927-2930. [PMID: 33620365 DOI: 10.1039/d0cc08131k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
By taking advantage of benzylidene succinimides as a new class of 3C synthons, a highly diastereo- and enantioselective tandem Mannich reaction/transamidation has been established by reacting them with cyclic trifluoromethyl N-acyl ketimines. Using a Cinchona alkaloid-derived squaramide as the catalyst, the tandem reaction proceeded smoothly under mild conditions and afforded a range of F3C-containing chiral polycyclic dihydroquinazolinones with excellent results (up to 99% yield, all cases >20 : 1 dr, up to 99% ee).
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Affiliation(s)
- Xia-Yan Zhang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China. and National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Pei-Hao Dou
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China. and National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wen-Ya Lu
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China. and National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
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5
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Bokale-Shivale S, Amin MA, Sawant RT, Stevens MY, Turanli L, Hallberg A, Waghmode SB, Odell LR. Synthesis of substituted 3,4-dihydroquinazolinones via a metal free Leuckart-Wallach type reaction. RSC Adv 2020; 11:349-353. [PMID: 35423044 PMCID: PMC8691039 DOI: 10.1039/d0ra10142g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 12/03/2020] [Indexed: 02/03/2023] Open
Abstract
The 3,4-dihydroquinazolinone (DHQ) moiety is a highly valued scaffold in medicinal chemistry due to the vast number of biologically-active compounds based on this core structure. Current synthetic methods to access these compounds are limited in terms of diversity and flexibility and often require the use of toxic reagents or expensive transition-metal catalysts. Herein, we describe the discovery and development of a novel cascade cyclization/Leuckart-Wallach type strategy to prepare substituted DHQs in a modular and efficient process using readily-available starting materials. Notably, the reaction requires only the addition of formic acid or acetic acid/formic acid and produces H2O, CO2 and methanol as the sole reaction byproducts. Overall, the reaction provides an attractive entry point into this important class of compounds and could even be extended to isotopic labelling via the site-selective incorporation of a deuterium atom.
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Affiliation(s)
- Suvarna Bokale-Shivale
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Mohammad A Amin
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Rajiv T Sawant
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Marc Y Stevens
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Lewend Turanli
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Adam Hallberg
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
| | - Suresh B Waghmode
- Department of Chemistry, Savitribai Phule Pune University (formerly Pune University) Ganeshkhind Pune 411 007 India
| | - Luke R Odell
- Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University P. O. Box 574 SE-751 23 Uppsala Sweden
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6
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Zhao Z, Li X, Wu B, Zhou Y. Biomimetic Asymmetric Reduction of Quinazolinones with Chiral and Regenerable
NAD
(P)H Models. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000045] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zi‐Biao Zhao
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Xiang Li
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Bo Wu
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Yong‐Gui Zhou
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
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