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Nandhu CT, Aneeja T, Anilkumar G. Gold‐Catalyzed Amination Reactions: Progress and Prospects. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chembil Thankachan Nandhu
- School of Chemical Sciences Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam, Kerala 686560 India
| | - Thaipparambil Aneeja
- School of Chemical Sciences Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam, Kerala 686560 India
| | - Gopinathan Anilkumar
- School of Chemical Sciences Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam, Kerala 686560 India
- Advanced Molecular Materials Research centre (AMMRC) Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam, Kerala 686560 India
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS) Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam, Kerala 686560 India
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2
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Cao Z, Scalabre A, Nlate S, Buffière S, Oda R, Pouget E, Bibal B. Silica-Supported Phosphine-Gold Complexes as an Efficient Catalytic System for a Dearomative Spirocyclization. Chemistry 2021; 27:427-433. [PMID: 33064331 DOI: 10.1002/chem.202004251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/08/2020] [Indexed: 11/07/2022]
Abstract
The combination of metal catalyst and inorganic silica frameworks provides a greener approach to recyclable catalysis. In this study, three phosphine-gold chloride complexes have been successfully covalently grafted onto chiral silica nanohelices. The resulting 3D ensembles showed chiroptical properties that allowed the monitoring of the supported ligands. The heterogeneous gold chloride catalysts in cooperation with silver triflate exhibited high reactivity in various reactions, especially in the spirocyclization of aryl alkynoate esters, for which a catalytic loading of 0.05 mol % could be employed. The heterogeneous catalysts could be easily recovered and recycled seven or eight times without any loss of efficiency. By adding more silver triflate, 25 cycles with full conversion were achieved owing to a complex catalytic system based on silica and metallic species.
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Affiliation(s)
- Zhen Cao
- Institut des Sciences Moléculaires, UMR CNRS 5255, Université de Bordeaux, 351 cours de la Libération, 33405, Talence, France
| | - Antoine Scalabre
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Sylvain Nlate
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Sonia Buffière
- Institut de Chimie de la Matière Condensée de Bordeaux, UMR CNRS 5026, Université de Bordeaux, 87 avenue du docteur Schweitzer, 33608, Pessac, France
| | - Reiko Oda
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Emilie Pouget
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Brigitte Bibal
- Institut des Sciences Moléculaires, UMR CNRS 5255, Université de Bordeaux, 351 cours de la Libération, 33405, Talence, France
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3
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Ohtsuki A, Aoki S, Nishida R, Morita S, Fujii T, Okumura K. H‐*BEA Zeolite‐Catalyzed Nucleophilic Substitution in Allyl Alcohols Using Sulfonamides, Amides, and Anilines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Akimichi Ohtsuki
- Applied Chemistry Kogakuin University 2665‐1 Nakano‐cho 192‐0015 Hachioji Tokyo Japan
| | - Shunsuke Aoki
- Applied Chemistry Kogakuin University 2665‐1 Nakano‐cho 192‐0015 Hachioji Tokyo Japan
| | - Ryo Nishida
- Applied Chemistry Kogakuin University 2665‐1 Nakano‐cho 192‐0015 Hachioji Tokyo Japan
| | - Sachiko Morita
- Applied Chemistry Kogakuin University 2665‐1 Nakano‐cho 192‐0015 Hachioji Tokyo Japan
| | - Takeshi Fujii
- Applied Chemistry Kogakuin University 2665‐1 Nakano‐cho 192‐0015 Hachioji Tokyo Japan
| | - Kazu Okumura
- Applied Chemistry Kogakuin University 2665‐1 Nakano‐cho 192‐0015 Hachioji Tokyo Japan
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4
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Yan D, Wang N, Xue T, Wu H, Zhang J, Wu P. SBA‐15 Supported Chiral Phosphine‐Gold(I) Complex: Highly Efficient and Recyclable Catalyst for Asymmetric Cycloaddition Reactions. ChemCatChem 2020. [DOI: 10.1002/cctc.202000514] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Dong Yan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P.R. China
| | - Nannan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P.R. China
| | - Teng Xue
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P.R. China
| | - Haihong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P.R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P.R. China
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 P.R. China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 P.R. China
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Albert‐Soriano M, M. Pastor I. Anion‐Dependent Imidazolium‐Based Catalysts for Allylation of Aniline with Tunable Regioselectivity. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000102] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- María Albert‐Soriano
- Organic Chemistry Department and Instituto de Síntesis Orgánica (ISO)University of Alicante Apdo. 99 03080 Alicante Spain
| | - Isidro M. Pastor
- Organic Chemistry Department and Instituto de Síntesis Orgánica (ISO)University of Alicante Apdo. 99 03080 Alicante Spain
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6
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Moradi P, Hajjami M, Valizadeh‐Kakhki F. Biochar as heterogeneous support for immobilization of Pd as efficient and reusable biocatalyst in C–C coupling reactions. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5205] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Parisa Moradi
- Department of Chemistry, Faculty of ScienceIlam University PO Box 69315516 Ilam Iran
| | - Maryam Hajjami
- Department of Chemistry, Faculty of ScienceIlam University PO Box 69315516 Ilam Iran
| | - Fatemeh Valizadeh‐Kakhki
- Department of Soil and Water Engineering, Faculty of AgricultureIlam University PO Box 69315516 Ilam Iran
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7
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Gholap SP, Jangid D, Fernandes RA. Metal-Free Brønsted Acid-Catalyzed Rearrangement of δ-Hydroxyalkynones to 2,3-Dihydro-4 H-pyran-4-ones: Total Synthesis of Obolactone and a Catechol Pyran Isolated from Plectranthus sylvestris. J Org Chem 2019; 84:3537-3551. [PMID: 30793599 DOI: 10.1021/acs.joc.8b03141] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A metal-free, Brønsted acid, pTsOH-catalyzed intramolecular rearrangement of δ-hydroxyalkynones to substituted 2,3-dihydro-4 H-pyran-4-ones was developed. The rearrangement occurs with high regioselectivity under mild and open-air conditions. The scope of work was illustrated by synthesizing an array of aliphatic and aromatic substituted 2,3-dihydro-4 H-pyran-4-ones in up to 96% yield, 100% atom economy, and complete regioselectivity. Some of the dihydropyranones are utilized for vinylic halogenations and to complete the total synthesis of bioactive natural products, obolactone and a catechol pyran isolated from Plectranthus sylvestris ( Labiatae) .
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Affiliation(s)
- Sachin P Gholap
- Department of Chemistry , Indian Institute of Technology Bombay , Powai, Mumbai 400076 , Maharashtra , India
| | - Dashrath Jangid
- Department of Chemistry , Indian Institute of Technology Bombay , Powai, Mumbai 400076 , Maharashtra , India
| | - Rodney A Fernandes
- Department of Chemistry , Indian Institute of Technology Bombay , Powai, Mumbai 400076 , Maharashtra , India
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Raji Reddy C, Mohammed SZ. Synthetic Studies toward (±)-Furanocembranoid 1: Construction of the Acyclic Carbon Framework. ACS OMEGA 2018; 3:15628-15634. [PMID: 31458219 PMCID: PMC6644170 DOI: 10.1021/acsomega.8b02328] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/05/2018] [Indexed: 06/10/2023]
Abstract
Herein, we report the synthesis of the entire acyclic carbon framework toward (±)-furanocembranoid 1 via the longest linear sequence of 12 steps from commercially available linalool and diethyl 2-isopropylmalonate. Key to the success of this synthetic approach is a silver-catalyzed enyne-annulation reaction for the formation of 2,4-disubstituted furan motif of unique furanocembranoid 1, isolated from Croton oblongifolius. Construction of macrocycle has also been explored using the ring-closing metathesis reaction.
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Affiliation(s)
- Chada Raji Reddy
- Department
of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Siddique Z. Mohammed
- Department
of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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