1
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Huang Y, Zhang Y, Pan L, Wu Q, Li N, Shi E, Xiao J. CAMDOL-enabled diastereoselective synthesis of α-substituted phosphonates. Chem Commun (Camb) 2024. [PMID: 38265054 DOI: 10.1039/d3cc05436e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Enantiopure α-substituted phosphonic acids are widely utilized as drugs, pesticides, and ligands. Despite numerous synthetic approaches having been investigated, precise construction of P-adjacent chiral tertiary carbon centres by the employment of recoverable chiral auxiliaries is traditional and still one of the most reliable and practical synthetic methodologies so far. Herein, we present a highly diastereoselective synthesis of α-substituted phosphonates via the unique CAMDOL-derived P-substrates by an efficient sequential deprotonation with LiHMDS and alkylation/arylation with RI. A wide range of 30 structurally diverse α-substituted phosphonate products, including the well-known P-analogues of naproxen and ibuprofen, were thus afforded conveniently in up to 92% yields and 99 : 1 diastereomeric ratios. The related chiral phosphonic acid could be easily obtained by simple acidic hydrolysis with fully recovered auxiliary. This CAMDOL-enabled asymmetric synthetic protocol exhibits comparative advantages over known chiral-induction methods with easy accessibility and compatibility of furnishing a variety of C-stereogenic centres in the proximity of the phosphorus atom, including some rare examples.
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Affiliation(s)
- Yu Huang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Yulong Zhang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Li Pan
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Qian Wu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Ning Li
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Enxue Shi
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Junhua Xiao
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
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2
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Lu B, Jiang X, Zeng X. Photolytic insertion of carbon monoxide into nitrosyl chloride: formation of nitrosoformyl chloride. Phys Chem Chem Phys 2022; 24:17673-17678. [PMID: 35837884 DOI: 10.1039/d2cp02913h] [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
Nitrosocarbonyls are exotic intermediates that remain scarcely characterized. By UV photolysis (365 nm) of nitrosyl chloride (ClNO) embedded in solid CO ice at 20 K, the elusive nitrosoformyl chloride (ClC(O)NO) has been synthesized via CO-insertion into the Cl-N bond in ClNO. The characterization of ClC(O)NO with matrix-isolation IR spectroscopy is supported by 13C and 15N isotope labeling and quantum chemical calculations at the B3LYP/6-311+G(3df) level of theory. Upon subsequent laser irradiation at 266 nm, CO-elimination in ClC(O)NO occurs by reformation of ClNO. In line with the calculated potential energy surface for ClC(O)NO at the CCSD(T)-F12a/aug-cc-pVTZ//B3LYP/6-311+G(3df) level, the observed IR frequencies and the corresponding isotopic shifts coincide with the calculated values for the lowest-energy planar conformer, in which the CO and NO moities adopt trans configuration with respect to the C-N bond. Furthermore, the CO-insertion in ClNO involves a stepwise pathway by first homolytic cleavage of the Cl-N bond in ClNO (→ Cl˙ + ˙NO), followed by successive CO-trapping (CO + Cl˙ → ClCO˙) and radical combination (ClCO˙ + ˙NO → ClC(O)NO) inside the solid CO-matrix cages.
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Affiliation(s)
- Bo Lu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
| | - Xin Jiang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
| | - Xiaoqing Zeng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
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3
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Gupta E, Vaishanv NK, Kumar S, Purshottam RK, Kant R, Mohanan K. Organocatalytic asymmetric nitroso aldol reaction of α-substituted malonamates. Beilstein J Org Chem 2022; 18:217-224. [PMID: 35280951 PMCID: PMC8895028 DOI: 10.3762/bjoc.18.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 02/11/2022] [Indexed: 11/23/2022] Open
Abstract
A practical enantioselective N-selective nitroso aldol reaction of α-methylmalonamates with a nitrosoarene is reported. The reaction employs the Takemoto thiourea catalyst for the induction of enantioselectivity, and the corresponding optically active oxyaminated malonamates were obtained in reasonably good yields.
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Affiliation(s)
- Ekta Gupta
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Narendra Kumar Vaishanv
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Sandeep Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Raja Krishnan Purshottam
- Sophisticated Analytical Instrument Facility CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Ruchir Kant
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Kishor Mohanan
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
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4
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Jaiswal MK, Singh S, Singh RP. Enantioselective vinylogous aldol reaction of acylphosphonates with 3-alkylidene oxindoles. Org Biomol Chem 2021; 19:7861-7866. [PMID: 34476434 DOI: 10.1039/d1ob00140j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple strategy for yielding chiral tertiary α-hydroxy phosphonates that integrates two highly biologically relevant scaffolds namely 3-alkylidene-2-oxindoles and phosphonates has been described. The hydrogen bonding ability of the bifunctional thiourea catalyst allows simultaneous dual activation of a vinylogous oxindole nucleophile and an acylphosphonate electrophile, affording hydroxyphosphonato-3-alkylidene-2-oxindoles as aldol adducts in high yields (up to 92%) with excellent stereocontrol (up to 99% ee).
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Affiliation(s)
- Manish K Jaiswal
- Chemistry, Indian Institute of Technology Delhi, New Delhi, Delhi, India.
| | - Sanjay Singh
- Chemistry, Indian Institute of Technology Delhi, New Delhi, Delhi, India.
| | - Ravi P Singh
- Chemistry, Indian Institute of Technology Delhi, New Delhi, Delhi, India.
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5
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Kananovich D, Elek GZ, Lopp M, Borovkov V. Aerobic Oxidations in Asymmetric Synthesis: Catalytic Strategies and Recent Developments. Front Chem 2021; 9:614944. [PMID: 33859974 PMCID: PMC8042332 DOI: 10.3389/fchem.2021.614944] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 02/10/2021] [Indexed: 11/17/2022] Open
Abstract
Despite the remarkable advances in the area of asymmetric catalytic oxidations over the past decades, the development of sustainable and environmentally benign enantioselective oxidation techniques, especially with the efficiency level similar to natural enzymes, still represents a challenge. The growing demand for enantiopure compounds and high interest to industry-relevant green technological advances continue to encourage the research pursuits in this field. Among various oxidants, molecular oxygen is ubiquitous, being available at low cost, environmentally benign and easy-to-handle material. This review highlights recent achievements in catalytic enantioselective oxidations utilizing molecular oxygen as the sole oxidant, with focus on the mechanisms of dioxygen activation and chirogenesis in these transformations.
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Affiliation(s)
- Dzmitry Kananovich
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Tallinn, Estonia
| | - Gábor Zoltán Elek
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Tallinn, Estonia
| | - Margus Lopp
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Tallinn, Estonia
| | - Victor Borovkov
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Tallinn, Estonia
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6
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Wu B, Yang J, Gao M, Hu L. Ring-Strain-Enabled Catalytic Asymmetric Umpolung C–O Bond-Forming Reactions of 1,2-Oxazetidines for the Synthesis of Functionalized Chiral Ethers. Org Lett 2020; 22:5561-5566. [DOI: 10.1021/acs.orglett.0c01916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Binyu Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Jinggang Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Min Gao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Lin Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P.R. China
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7
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Mallik S, Bhajammanavar V, Baidya M. Catalyst-Controlled Regioselective Nitrosocarbonyl Aldol Reaction of Deconjugated Butenolides. Org Lett 2020; 22:1437-1441. [PMID: 31999129 DOI: 10.1021/acs.orglett.0c00039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An unprecedented regiodivergent nitrosocarbonyl aldol reaction of γ-substituted deconjugated butenolides is described. While Lewis base catalyst quinidine leveraged O-selective nitrosocarbonyl aldol reaction exclusively at the γ-position of deconjugated butenolides to produce γ-aminoxylation products, Lewis acid catalyst Cu(OTf)2 steered the competitive N-selective nitrosocarbonyl aldol reaction at the β-position, resulting in heterodifunctionalized butenolides. Both processes were amenable to a broad range of substrates and scalable, while the latter one represents a rare example of one-pot hetero-β,γ-difunctionalization of butenolide scaffolds.
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Affiliation(s)
- Sumitava Mallik
- Department of Chemistry , Indian Institute of Technology Madras , Chennai - 600 036 , India
| | - Vinod Bhajammanavar
- Department of Chemistry , Indian Institute of Technology Madras , Chennai - 600 036 , India
| | - Mahiuddin Baidya
- Department of Chemistry , Indian Institute of Technology Madras , Chennai - 600 036 , India
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8
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Affiliation(s)
- Jinggang Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical SciencesChongqing University Chongqing 401331 China
| | - Binyu Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical SciencesChongqing University Chongqing 401331 China
| | - Lin Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical SciencesChongqing University Chongqing 401331 China
- Guangdong Provincial Key Lab of Nano-Micro Material Research School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate School Shenzhen 518055 China
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9
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Ma PJ, Tang F, Yao Y, Lu CD. Addition-Rearrangement of Ketenes with Lithium N- tert-Butanesulfinamides: Enantioselective Synthesis of α,α-Disubstituted α-Hydroxycarboxylic Acid Derivatives. Org Lett 2019; 21:4671-4675. [PMID: 31150260 DOI: 10.1021/acs.orglett.9b01555] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Addition of the lithium salts of chiral N-substituted tert-butanesulfinamides to ketenes and subsequent silylation initiates stereoselective [2,3]-rearrangement, which affords enantioenriched α,α-disubstituted α-sulfenyloxy carboxamides through a reaction that faithfully transfers the absolute stereochemistry of the lithiated sulfinylamides to the α-carbon of the amide products. This addition-rearrangement can be performed together with ketene formation from acyl chloride in a single flask, providing a new and practical synthetic route to α-hydroxycarboxylic acid derivatives.
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Affiliation(s)
- Peng-Ju Ma
- Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China
| | - Fan Tang
- Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China
| | - Yun Yao
- School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Chong-Dao Lu
- School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China.,Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China
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10
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Mallik S, Bhajammanavar V, Mukherjee AP, Baidya M. Catalytic Regiodivergent Dearomatization Reaction of Nitrosocarbonyl Intermediates with β-Naphthols. Org Lett 2019; 21:2352-2355. [DOI: 10.1021/acs.orglett.9b00628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sumitava Mallik
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Vinod Bhajammanavar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Arka Probha Mukherjee
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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11
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Banerjee A, Yamamoto H. Direct N-O bond formation via oxidation of amines with benzoyl peroxide. Chem Sci 2019; 10:2124-2129. [PMID: 30881636 PMCID: PMC6383333 DOI: 10.1039/c8sc04996c] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 12/11/2018] [Indexed: 11/30/2022] Open
Abstract
Herein, we report a general and efficient method for direct N-O bond formation without undesirable C-N bond (amide) formation starting from commercially available amines and benzoyl peroxide. The oxidation of 1,2-diamines to furnish bis-(benzoyloxy)-1,2-diamines is reported for the first time. We found that a significant amount of water (BPO : water = 3 : 1) in combination with Cs2CO3 is necessary to achieve high selectivity and yield. The reaction conditions are applicable to a wide range of 1,2-diamine and 1,2-disubstituted-1,2-diamine substrates. Additionally this method is highly applicable to primary and secondary amines. Further, the present method can access chiral bis-hydroxamic acids and bis-hydroxyl amines in just two steps from 1,2-diamines. The reaction conditions are simple, mild and inert atmosphere free. The synthetic potential of this methodology is further demonstrated in the short synthesis of a chiral BHA ligand.
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Affiliation(s)
- Amit Banerjee
- Molecular Catalyst Research Center , Chubu University , 1200, Matsumoto-cho , Kasugai , Aichi 487-8501 , Japan . ;
| | - Hisashi Yamamoto
- Molecular Catalyst Research Center , Chubu University , 1200, Matsumoto-cho , Kasugai , Aichi 487-8501 , Japan . ;
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12
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Zhang J, Fu K, Lin L, Lu Y, Liu X, Feng X. Efficient Catalytic Enantioselective Hydroxyamination of α-Aryl-α-Cyanoacetates with 2-Nitrosopyridines. Chemistry 2018; 24:4289-4293. [PMID: 29457662 DOI: 10.1002/chem.201800592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Indexed: 12/24/2022]
Abstract
The highly enantioselective totally N-selective hydroxyamination reaction of α-aryl-α-cyanoacetates with 2-nitrosopyridines was realized by using a chiral N,N'-dioxide/Mg(OTf)2 complex as catalyst, which enriches the nitroso chemistry. A variety of 2-cyano-2-[hydroxyl(pyrydin-2-yl)amino]acetates with quaternary stereocenters and potential antibacterial activities were obtained in excellent yields with good to excellent ee values under as low as 0.05 mol % catalyst loading. The products could be easily transformed to useful α-amino amides and 1,2-diamines. Besides, a possible transition state model was proposed to elucidate the origin of the chirality induction.
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Affiliation(s)
- Jingchuan Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Kai Fu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Yan Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
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13
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Islam MM, Halder M, Singha Roy A, Islam SM. Heterogeneous Route for the One-Pot Synthesis of N-Arylamides from Aldoximes and Aryl Halides Using the CuO/Carbon Material. ACS OMEGA 2017; 2:8600-8609. [PMID: 31457392 PMCID: PMC6645595 DOI: 10.1021/acsomega.7b01028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 11/17/2017] [Indexed: 05/05/2023]
Abstract
Metal oxide nanoparticles (NPs) stabilized by porous carbon materials (PCMs) are very promising for catalysis. In this work, monodispersed small and stable copper oxide (CuO) NPs were prepared with an average size of 10-20 nm without using any capping agent and then these NPs were encapsulated into porous carbon. The chemical and structural properties of the CuO/PCM material were characterized by powder X-ray diffraction, electron microscopy, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, and nitrogen sorption. The obtained CuO/PCM nanocatalytic system has been used for the synthesis of N-arylamides from the reaction of aldoximes and aryl halides. Generally, copper(II) salt was used for the preparation of amides from aldoximes using some ligands and bases, but harsh reaction condition, stoichiometric amount of metal, and lack of recyclability limit their applications in industry. An alternative method is the use of heterogeneous catalysts. More importantly, these heterogeneous catalysts could be easily recycled and reused, showing potential application in organic synthesis.
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Affiliation(s)
- Md. Mominul Islam
- Department
of Chemistry, University of Kalyani, Nadia, Kalyani 741235, West Bengal, India
| | - Mita Halder
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Ray Road, Kolkata 700009, West Bengal, India
| | - Anupam Singha Roy
- Catalytic
Conversion & Processes Division, CSIR−Indian
Institute of Petroleum, Dehradun 248005, Uttarakhand, India
- E-mail: (A.S.R.)
| | - Sk. Manirul Islam
- Department
of Chemistry, University of Kalyani, Nadia, Kalyani 741235, West Bengal, India
- E-mail: (S.M.I.)
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14
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Huang JQ, Nairoukh Z, Marek I. Electrophilic Oxidation of Stereodefined Polysubstituted Silyl Ketone Aminals. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jian Qiang Huang
- The Mallat Family Laboratory of Organic Chemistry Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Technion City 32000 Haifa Israel
| | - Zackaria Nairoukh
- The Mallat Family Laboratory of Organic Chemistry Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Technion City 32000 Haifa Israel
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Technion City 32000 Haifa Israel
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15
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Mallik S, Bhajammanavar V, Ramakrishna I, Baidya M. Cross-Aldol Reaction of Activated Carbonyls with Nitrosocarbonyl Intermediates: Stereoselective Synthesis toward α-Hydroxy-β-amino Esters and Amides. Org Lett 2017; 19:3843-3846. [PMID: 28700246 DOI: 10.1021/acs.orglett.7b01721] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A practical and flexible strategy toward α-hydroxy-β-amino esters and amides, which are important biological motifs, based on an organocatalytic cross-aldol reaction of in situ-generated nitrosocarbonyl intermediates followed by hydrogenation is presented. The protocol features operational simplicity, high yields, a wide substrate scope, and high regio- and diastereoselectivity profiles. The utility of this method was showcased through the synthesis of bestatin analogues and indole formation.
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Affiliation(s)
- Sumitava Mallik
- Department of Chemistry, Indian Institute of Technology Madras , Chennai 600 036, Tamil Nadu, India
| | - Vinod Bhajammanavar
- Department of Chemistry, Indian Institute of Technology Madras , Chennai 600 036, Tamil Nadu, India
| | - Isai Ramakrishna
- Department of Chemistry, Indian Institute of Technology Madras , Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras , Chennai 600 036, Tamil Nadu, India
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16
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Reddy MK, Mallik S, Ramakrishna I, Baidya M. Nitrosocarbonyl–Henry and Denitration Cascade: Synthesis of α-Ketoamides and α-Keto Oximes. Org Lett 2017; 19:1694-1697. [DOI: 10.1021/acs.orglett.7b00482] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mallu Kesava Reddy
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sumitava Mallik
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Isai Ramakrishna
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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17
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Abstract
The nitrosocarbonyls (R-CONO) are highly reactive species and remarkable intermediates toward different synthetic targets. This review will cover a research area whose impact in current organic synthesis is constantly increasing in the chemical community. This review represents the first and comprehensive picture on the generation and trapping of nitrosocarbonyls and is solidly built on more than 380 papers. Six different classes of key starting materials such as hydroxamic acids, N-hydroxy carbamates, N-hydroxyureas, nitrile oxides, and 1,2,4-oxadiazole-4-oxides were highlighted. The content of the review surveys all the methods to generate the nitrosocarbonyls through different approaches (oxidative, thermal, photochemical, catalytic, aerobic, and the less common ones) in the light of efficiency, yields, and mildness. The most successful trapping agents employed to catch these fleeting intermediates are reviewed, exploiting their superior dienophilic, enophilic, and electrophilic power. The work is completed by paragraphs dedicated to the detection of the intermediates, theoretical studies, and insights about the challenges and future directions for the field.
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Affiliation(s)
- Misal Giuseppe Memeo
- Dipartimento di Chimica, Università degli Studi di Pavia , Viale Taramelli 12, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Dipartimento di Chimica, Università degli Studi di Pavia , Viale Taramelli 12, 27100 Pavia, Italy
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18
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Vamisetti GB, Chowdhury R, Ghosh SK. Organocatalytic decarboxylative aldol reaction of β-ketoacids with α-ketophosphonates en route to the enantioselective synthesis of tertiary α-hydroxyphosphonates. Org Biomol Chem 2017; 15:3869-3873. [DOI: 10.1039/c7ob00796e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
γ-Aroyl tertiary α-hydroxyphosphonates with a chiral quaternary centre were synthesized via a facile organocatalyzed decarboxylative aldol reaction between β-ketoacids and α-ketophosphonates.
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Affiliation(s)
- Ganga B. Vamisetti
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
- Homi Bhabha National Institute
| | | | - Sunil K. Ghosh
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
- Homi Bhabha National Institute
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19
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Cui Z, Du DM. Enantioselective Synthesis of β-Hydrazino Alcohols Using Alcohols and N-Boc-Hydrazine as Substrates. Org Lett 2016; 18:5616-5619. [PMID: 27786480 DOI: 10.1021/acs.orglett.6b02841] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An enantioselective approach for the synthesis of α-hydrazino aldehydes is described that utilizes alcohols and N-Boc hydrazine instead of the conventional combination of aldehydes with azodicarboxylates. This protocol is enabled by merging in situ aerobic dual oxidation with asymmetric organocatalysis. This reaction also exhibits a high tolerance for varieties of substituents on the alcohol component. This approach features excellent enantiocontrol, cheap starting materials, operational simplicity, and scalability. The corresponding chiral β-hydrazino alcohols were obtained by sequential reduction with excellent enantioselectivity (up to 98% ee).
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Affiliation(s)
- Zhihao Cui
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology , Beijing 100081, People's Republic of China
| | - Da-Ming Du
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology , Beijing 100081, People's Republic of China
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20
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Yanagisawa A, Lin Y, Takeishi A, Yoshida K. Enantioselective Nitroso Aldol Reaction Catalyzed by a Chiral Phosphine-Silver Complex. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601143] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Akira Yanagisawa
- Molecular Chirality Research Center; Department of Chemistry; Graduate School of Science; Chiba University; Inage 263-8522 Chiba Japan
| | - Yuqin Lin
- Molecular Chirality Research Center; Department of Chemistry; Graduate School of Science; Chiba University; Inage 263-8522 Chiba Japan
| | - Akihiro Takeishi
- Molecular Chirality Research Center; Department of Chemistry; Graduate School of Science; Chiba University; Inage 263-8522 Chiba Japan
| | - Kazuhiro Yoshida
- Molecular Chirality Research Center; Department of Chemistry; Graduate School of Science; Chiba University; Inage 263-8522 Chiba Japan
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21
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Maekawa Y, Maruyama T, Murai T. Sequential Deprotonation–Alkylation of Binaphthyloxy-Substituted Phosphonochalcogenoates: Chiral Tri- and Tetrasubstituted Carbon Centers Adjacent to a Phosphorus Atom. Org Lett 2016; 18:5264-5267. [DOI: 10.1021/acs.orglett.6b02578] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yuuki Maekawa
- Department
of Chemistry and
Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Toshifumi Maruyama
- Department
of Chemistry and
Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Toshiaki Murai
- Department
of Chemistry and
Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
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22
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Huang J, Chen Z, Yuan J, Peng Y. Recent Advances in Highly Selective Applications of Nitroso Compounds. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600242] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiapian Huang
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and Key Laboratory of Green Chemistry, Jiangxi Province; College of Chemistry & Chemical Engineering; Jiangxi Normal University; Ziyang Road 99 Nanchang Jiangxi 330022 P. R. China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and Key Laboratory of Green Chemistry, Jiangxi Province; College of Chemistry & Chemical Engineering; Jiangxi Normal University; Ziyang Road 99 Nanchang Jiangxi 330022 P. R. China
| | - Jianjun Yuan
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and Key Laboratory of Green Chemistry, Jiangxi Province; College of Chemistry & Chemical Engineering; Jiangxi Normal University; Ziyang Road 99 Nanchang Jiangxi 330022 P. R. China
| | - Yiyuan Peng
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and Key Laboratory of Green Chemistry, Jiangxi Province; College of Chemistry & Chemical Engineering; Jiangxi Normal University; Ziyang Road 99 Nanchang Jiangxi 330022 P. R. China
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23
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Nakashima E, Yamamoto H. Continuous flow of nitroso Diels-Alder reaction. Chem Commun (Camb) 2016; 51:12309-12. [PMID: 26138229 DOI: 10.1039/c5cc03458b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Our flow reaction systems have provided quantitative yields of nitroso Diels-Alder products with no byproducts in cases of cyclic dienes without temperature and pressure controls. Additionally, the reaction times were significantly shortened by using homogeneous catalyst (CuCl) or heterogeneous reagent (MnO2) in comparison with batch reaction.
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Affiliation(s)
- Erika Nakashima
- Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, IL 60637, USA.
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24
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Maji B, Yamamoto H. Catalytic Enantioselective Nitroso Diels–Alder Reaction. J Am Chem Soc 2015; 137:15957-63. [DOI: 10.1021/jacs.5b11273] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Biplab Maji
- Molecular Catalyst Research
Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Hisashi Yamamoto
- Molecular Catalyst Research
Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
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25
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Ren H, Wang P, Wang L, Tang Y. Catalytic Asymmetric Synthesis of 3-Hydroxy-3-trifluoromethyl Benzofuranones via Tandem Friedel–Crafts/Lactonization Reaction. Org Lett 2015; 17:4886-9. [DOI: 10.1021/acs.orglett.5b02440] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hai Ren
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Pan Wang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Lijia Wang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Yong Tang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
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26
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Ramakrishna I, Grandhi GS, Sahoo H, Baidya M. The Mukaiyama aldol reaction of in situ generated nitrosocarbonyl compounds: selective C-N bond formation and N-O bond cleavage in one-pot for α-amination of ketones. Chem Commun (Camb) 2015; 51:13976-9. [PMID: 26245149 DOI: 10.1039/c5cc05459a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical protocol for the α-amination of ketones (up to 99% yield) has been developed via the Mukaiyama aldol reaction of in situ generated nitrosocarbonyl compounds. The reaction with silyl enol ethers having a disilane (-SiMe2TMS) backbone proceeded not only with perfect N-selectivity but concomitant N-O bond cleavage was also accomplished. Such a cascade of C-N bond formation and N-O bond cleavage in a single step was heretofore unknown in the field of nitrosocarbonyl chemistry. A very high diastereoselectivity (dr = 19 : 1) was accomplished using (-)-menthol derived chiral nitrosocarbonyl compounds.
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Affiliation(s)
- Isai Ramakrishna
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India.
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27
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Sandoval D, Samoshin AV, Read de Alaniz J. Asymmetric Electrophilic α-Amination of Silyl Enol Ether Derivatives via the Nitrosocarbonyl Hetero-ene Reaction. Org Lett 2015; 17:4514-7. [PMID: 26317504 DOI: 10.1021/acs.orglett.5b02208] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- David Sandoval
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Andrey V. Samoshin
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Javier Read de Alaniz
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
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28
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Maji B, Yamamoto H. Use of In Situ Generated Nitrosocarbonyl Compounds in Catalytic Asymmetric α-Hydroxylation and α-Amination Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150040] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Biplab Maji
- Molecular Catalyst Research Center, Chubu University
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