1
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Zarei S, Motard M, Cecioni S. Stable Amide Activation of N-Acetylated Glycosamines for the Synthesis of Fused Polycyclic Glycomimetics. Org Lett 2024; 26:204-209. [PMID: 38166160 DOI: 10.1021/acs.orglett.3c03803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
N-Acetylation of carbohydrates is an underexplored target for chemoselective derivatization and generation of glycomimetic scaffolds. Through mild amide activation, we report that N-acetimidoyl heterocycles are stable in neutral or basic conditions yet are excellent leaving groups through acid catalysis. While this specific reactivity could prove broadly useful in amide activation strategies, stably activated N-acetylated sugars can also be diversified using libraries of hydrazides. We optimized an acid-catalyzed one-pot sequence that includes nucleophilic displacement, cyclodehydration, and intramolecular glycosylation to ultimately deliver pyranosides fused to morpholines or piperazines. This strategy of stable activation followed by acid-triggered reaction sequences exemplifies the efficient assembly of 3D-rich fused glycomimetic libraries.
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Affiliation(s)
- Samaneh Zarei
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec H3C 3J7, Canada
| | - Mélina Motard
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec H3C 3J7, Canada
| | - Samy Cecioni
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec H3C 3J7, Canada
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2
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Feng M, Zhang H, Maulide N. Challenges and Breakthroughs in Selective Amide Activation. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 134:e202212213. [PMID: 38504998 PMCID: PMC10947092 DOI: 10.1002/ange.202212213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Indexed: 11/09/2022]
Abstract
In contrast to ketones and carboxylic esters, amides are classically seen as comparatively unreactive members of the carbonyl family, owing to their unique structural and electronic features. However, recent decades have seen the emergence of research programmes focused on the selective activation of amides under mild conditions. In the past four years, this area has continued to rapidly develop, with new advances coming in at a fast pace. Several novel activation strategies have been demonstrated as effective tools for selective amide activation, enabling transformations that are at once synthetically useful and mechanistically intriguing. This Minireview comprises recent advances in the field, highlighting new trends and breakthroughs in what could be called a new age of amide activation.
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Affiliation(s)
- Minghao Feng
- Faculty of ChemistryInstitute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
| | - Haoqi Zhang
- Faculty of ChemistryInstitute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
- Christian-Doppler Laboratory for Entropy-Oriented Drug DesignJosef-Holaubek-Platz 21090ViennaAustria
| | - Nuno Maulide
- Faculty of ChemistryInstitute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
- Christian-Doppler Laboratory for Entropy-Oriented Drug DesignJosef-Holaubek-Platz 21090ViennaAustria
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3
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Wu DP, Ou W, Huang PQ. Ir-Catalyzed Chemoselective Reductive Condensation Reactions of Tertiary Amides with Active Methylene Compounds. Org Lett 2022; 24:5366-5371. [PMID: 35849542 DOI: 10.1021/acs.orglett.2c02045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalytic reductive condensation reactions of tertiary amides with active methylene compounds leading to multifunctionalized non-N-containing products is described. The reactions proceed through sequential iridium-catalyzed hydrosilylation of the amides followed by acid-mediated condensation with the active methylene compounds. This scalable method is broad in scope and shows remarkable chemoselectivity for the amide group in the presence of several sensitive or even more reactive functionalities such as ester, cyano, nitro, silyl dienol ether, and ketone.
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Affiliation(s)
- Dong-Ping Wu
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Wei Ou
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
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4
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Zuo D, Wang Q, Liu L, Huang T, Szostak M, Chen T. Highly Chemoselective Transamidation of Unactivated Tertiary Amides by Electrophilic N-C(O) Activation by Amide-to-Acyl Iodide Re-routing. Angew Chem Int Ed Engl 2022; 61:e202202794. [PMID: 35355386 DOI: 10.1002/anie.202202794] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Indexed: 12/20/2022]
Abstract
The challenging transamidation of unactivated tertiary amides has been accomplished via cooperative acid/iodide catalysis. Most crucially, the method provides a novel manifold to re-route the reactivity of unactivated N,N-dialkyl amides through reactive acyl iodide intermediates, thus reverting the classical order of reactivity of carboxylic acid derivatives. This method provides a direct route to amide-to-amide bond interconversion with excellent chemoselectivity using equivalent amounts of amines. The combination of acid and iodide has been identified as the essential factor to activate the amide C-N bond through electrophilic catalytic activation, enabling the production of new desired transamidated products with wide substrate scope of both unactivated amides and amines, including late-stage functionalization of complex APIs (>80 examples). We anticipate that this powerful activation mode of unactivated amide bonds will find broad-ranging applications in chemical synthesis.
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Affiliation(s)
- Dongxu Zuo
- College of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
| | - Qun Wang
- College of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Long Liu
- College of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
| | - Tianzeng Huang
- College of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, USA
| | - Tieqiao Chen
- College of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
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5
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Ni J, Xia X, Zheng WF, Wang Z. Ti-Catalyzed Diastereoselective Cyclopropanation of Carboxylic Derivatives with Terminal Olefins. J Am Chem Soc 2022; 144:7889-7900. [PMID: 35442655 DOI: 10.1021/jacs.2c02360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Cyclopropanols and cyclopropylamines not only serve as important structural motifs in medicinal chemistry but also show diverse reactivities in organic synthesis. Owing to the high ring strain energy, the development of a general protocol from stable and readily available starting materials to afford these cyclopropyl derivatives remains a compelling challenge. Herein, we describe that a Ti-based catalyst can effectively promote the diastereoselective syntheses of cyclopropanols and cyclopropylamines from widely accessible carboxylic derivatives (acids, esters, amides) with terminal olefins. To the best of our knowledge, this method represents the first example of direct converting alkyl carboxylic acids into cyclopropanols. Distinct from conventional studies in Ti-mediated cyclopropanations with reactive alkyl Grignard reagents as nucleophiles or reductants, this protocol utilizes Mg and Me2SiCl2 to turn over the Ti catalyst. Our method exhibits broad substrate scope with good functional group compatibility and is amenable to late-stage synthetic manipulations of natural products and biologically active molecules.
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Affiliation(s)
- Jiabin Ni
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Xiaowen Xia
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Wei-Feng Zheng
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Zhaobin Wang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
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6
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Zuo D, Wang Q, Liu L, Huang T, Szostak M, Chen T. Highly Chemoselective Transamidation of Unactivated Tertiary Amides by Electrophilic N–C(O) Activation via Amide‐to‐Acyl Iodide Re‐Routing. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dongxu Zuo
- Hainan University College of Chemical Engineering and Technology CHINA
| | - Qun Wang
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Long Liu
- Hainan University College of Chemical Engineering and Technology CHINA
| | - Tianzeng Huang
- Hainan University College of Chemical Engineering and Technology CHINA
| | - Michal Szostak
- Rutgers University Newark Department of Chemistry UNITED STATES
| | - Tieqiao Chen
- Hainan University College of Chemical Engineering and Technology No. 58, Renmin Avenue, Meilan District 570228 Haikou CHINA
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7
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Kang JY, Huang H. Triflic Anhydride (Tf2O)-Activated Transformations of Amides, Sulfoxides and Phosphorus Oxides via Nucleophilic Trapping. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1679-8205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractTrifluoromethanesulfonic anhydride (Tf2O) is utilized as a strong electrophilic activator in a wide range of applications in synthetic organic chemistry, leading to the transient generation of a triflate intermediate. This versatile triflate intermediate undergoes nucleophilic trapping with diverse nucleophiles to yield novel compounds. In this review, we describe the features and applications of triflic anhydride in organic synthesis reported in the past decade, especially in amide, sulfoxide, and phosphorus oxide chemistry through electrophilic activation. A plausible mechanistic pathway for each important reaction is also discussed.1 Introduction2 Amide Chemistry2.1 Carbon Nucleophiles2.2 Hydrogen Nucleophiles2.3 Nitrogen Nucleophiles2.4 Oxygen and Sulfur Nucleophiles2.5 hosphorus Nucleophiles2.6 A Vilsmeier-Type Reagent2.7 Umpolung Reactivity in Amides3 Sulfoxide Chemistry3.1 Oxygen Nucleophiles3.2 Carbon Nucleophiles3.3 Nitrogen Nucleophiles3.4 Thionium Reagents4 Phosphorus Chemistry4.1 Hendrickson’s Reagent4.2 Diaryl Phosphine Oxides4.3 Phosphonates, Phosphates and Phosphinates5 Conclusion and Outlook
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Affiliation(s)
- Jun Yong Kang
- Department of Chemistry and Biochemistry, University of Nevada Las Vegas
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University
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8
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He Q, Ye JL, Xu FF, Geng H, Chen TT, Chen H, Huang PQ. Tf 2O/TTBP (2,4,6-Tri- tert-butylpyrimidine): An Alternative Amide Activation System for the Direct Transformations of Both Tertiary and Secondary Amides. J Org Chem 2021; 86:16300-16314. [PMID: 34499513 DOI: 10.1021/acs.joc.1c01572] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ten types of Tf2O/TTBP-mediated amide transformation reactions were investigated. The results showed that compared with pyridine derivatives 2,6-di-tert-butyl-4-methylpyridine (DTBMP) and 2-fluoropyridine (2-F-Pyr.), TTBP can serve as an alternative amide activation system for the direct transformation of both secondary and tertiary amides. For most surveyed examples, higher or comparable yields were generally obtained. In addition, Tf2O/TTBP combination was used to promote the condensation reactions of 2-(tert-butyldimethylsilyloxy)furan (TBSOF) with both tertiary and secondary amides, the one-pot reductive Bischler-Napieralski-type reaction of tertiary lactams, and Movassaghi and Hill's modern version of the Bischler-Napieralski reaction. The value of the Tf2O/TTBP-based methodology was further demonstrated by the concise and high-yielding syntheses of several natural products.
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Affiliation(s)
- Qian He
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Jian-Liang Ye
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Fang-Fang Xu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Hui Geng
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Ting-Ting Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Hang Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
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9
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Bao CC, Du HZ, Luo YL, Guan BT. Direct alkylation of N,N-dialkyl benzamides with methyl sulfides under transition metal-free conditions. Commun Chem 2021; 4:138. [PMID: 36697564 PMCID: PMC9814863 DOI: 10.1038/s42004-021-00575-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 08/19/2021] [Indexed: 01/28/2023] Open
Abstract
Amides are a fundamental and widespread functional group, and are usually considered as poor electrophiles owing to resonance stabilization of the amide bond. Various approaches have been developed to address challenges in amide transformations. Nonetheless, most methods use activated amides, organometallic reagents or transition metal catalysts. Here, we report the direct alkylation of N,N-dialkyl benzamides with methyl sulfides promoted by the readily available base LDA (lithium diisopropylamide). This approach successfully achieves an efficient and selective synthesis of α-sulfenylated ketones without using transition-metal catalysts or organometallic reagents. Preliminary mechanism studies reveal that the deprotonative aroylation of methyl sulfides is promoted by the directed ortho-lithiation of the tertiary benzamide with LDA.
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Affiliation(s)
- Can-Can Bao
- grid.216938.70000 0000 9878 7032College of Chemistry, Nankai University, Tianjin, China
| | - Hui-Zhen Du
- grid.216938.70000 0000 9878 7032College of Chemistry, Nankai University, Tianjin, China
| | - Yan-Long Luo
- grid.216938.70000 0000 9878 7032College of Chemistry, Nankai University, Tianjin, China
| | - Bing-Tao Guan
- grid.8547.e0000 0001 0125 2443Department of Chemistry, Fudan University, Shanghai, China
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10
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Lipshultz JM, Radosevich AT. Uniting Amide Synthesis and Activation by P III/P V-Catalyzed Serial Condensation: Three-Component Assembly of 2-Amidopyridines. J Am Chem Soc 2021; 143:14487-14494. [PMID: 34478308 DOI: 10.1021/jacs.1c07608] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An organophosphorus (PIII/PV redox) catalyzed method for the three-component condensation of amines, carboxylic acids, and pyridine N-oxides to generate 2-amidopyridines via serial dehydration is reported. Whereas amide synthesis and functionalization usually occur under divergent reaction conditions, here a phosphetane catalyst (together with a mild bromenium oxidant and terminal hydrosilane reductant) is shown to drive both steps chemoselectively in an auto-tandem catalytic cascade. The ability to both prepare and functionalize amides under the action of a single organocatalytic reactive intermediate enables new possibilities for the efficient and modular preparation of medicinal targets.
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Affiliation(s)
- Jeffrey M Lipshultz
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Alexander T Radosevich
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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11
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Wu F, Kaur N, Alom NE, Li W. Chiral Hypervalent Iodine Catalysis Enables an Unusual Regiodivergent Intermolecular Olefin Aminooxygenation. JACS AU 2021; 1:734-741. [PMID: 34240078 PMCID: PMC8243328 DOI: 10.1021/jacsau.1c00103] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A novel iodide-catalyzed intermolecular aminooxygenation strategy is described here. Amide is used as the O- and N- source to probe for regiocontrol strategies. Notably, simple additives can be selectively introduced to achieve regiodivergent oxyamination processes for electronically activated alkenes while being regio-complementary for unactivated alkenes. Our preliminary data demonstrates that this regiocontrol strategy based on nucleophile can also be applied in asymmetric processes using chiral hypervalent iodine catalysis.
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Affiliation(s)
- Fan Wu
- Department of Chemistry and Biochemistry,
School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United
States
| | - Navdeep Kaur
- Department of Chemistry and Biochemistry,
School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United
States
| | - Nur-E Alom
- Department of Chemistry and Biochemistry,
School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United
States
| | - Wei Li
- Department of Chemistry and Biochemistry,
School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United
States
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12
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Lin Y, He SF, Geng H, Xiao YC, Ji KL, Zheng JF, Huang PQ. Chemoselective Reactions of Isocyanates with Secondary Amides: One-Pot Construction of 2,3-Dialkyl-Substituted Quinazolinones. J Org Chem 2021; 86:5345-5353. [PMID: 33710879 DOI: 10.1021/acs.joc.0c02929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A facile method for the preparation of 2,3-dialkyl-substituted quinazolinones from readily available N-arylamides and commercial isocyanates was developed. This one-pot procedure involves the chemoselective activation of the secondary amide with Tf2O/2-Br-Pyr, the sequential addition of isocyanate, and cyclization. The mild reaction is general for a wide range of substrates and can be run on a gram scale.
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Affiliation(s)
- Yi Lin
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Shu-Fan He
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Hui Geng
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yu-Chen Xiao
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Kan-Lei Ji
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Jian-Feng Zheng
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China.,State Key Laboratory of Bio-organic and Natural Products Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
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13
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Chen DH, Sun WT, Zhu CJ, Lu GS, Wu DP, Wang AE, Huang PQ. Enantioselective Reductive Cyanation and Phosphonylation of Secondary Amides by Iridium and Chiral Thiourea Sequential Catalysis. Angew Chem Int Ed Engl 2021; 60:8827-8831. [PMID: 33484032 DOI: 10.1002/anie.202015898] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Indexed: 12/26/2022]
Abstract
The combination of transition-metal catalysis and organocatalysis increasingly offers chemists opportunities to realize diverse unprecedented chemical transformations. By combining iridium with chiral thiourea catalysis, direct enantioselective reductive cyanation and phosphonylation of secondary amides have been accomplished for the first time for the synthesis of enantioenriched chiral α-aminonitriles and α-aminophosphonates. The protocol is highly efficient and enantioselective, providing a novel route to the synthesis of optically active α-functionalized amines from the simple, readily available feedstocks. In addition, the reactions are scalable and the thiourea catalyst can be recycled and reused.
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Affiliation(s)
- Dong-Huang Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Wei-Ting Sun
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Cheng-Jie Zhu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Guang-Sheng Lu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Dong-Ping Wu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Ai-E Wang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, Gansu, China
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14
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Chen D, Sun W, Zhu C, Lu G, Wu D, Wang A, Huang P. Enantioselective Reductive Cyanation and Phosphonylation of Secondary Amides by Iridium and Chiral Thiourea Sequential Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015898] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Dong‐Huang Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Wei‐Ting Sun
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Cheng‐Jie Zhu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Guang‐Sheng Lu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Dong‐Ping Wu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Ai‐E Wang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000, Gansu China
| | - Pei‐Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000, Gansu China
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15
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Niu ZJ, Li LH, Li XS, Liu HC, Shi WY, Liang YM. Formation of o-Allyl- and Allenyl-Modified Amides via Intermolecular Claisen Rearrangement. Org Lett 2021; 23:1315-1320. [PMID: 33534590 DOI: 10.1021/acs.orglett.0c04300] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We developed a new transition-metal-free intermolecular Claisen rearrangement process to introduce allyl and allenyl groups into the α position of tertiary amides. In this transformation, amides were activated by trifluoromethanesulfonic anhydride to produce the keteniminium ion intermediates that exhibit strong electrophilic activity. This atom-economical process delivers α position-modified amides under mild conditions in moderate to good yields and showcases a broad substrate compatibility.
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Affiliation(s)
- Zhi-Jie Niu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Lian-Hua Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xue-Song Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Wei-Yu Shi
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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16
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An XD, Xiao J. Recent advances in hydride transfer-involved C(sp3)–H activation reactions. Org Chem Front 2021. [DOI: 10.1039/d0qo01502d] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This review summarizes the recent progresses (2016–2020) in the hydride transfer-enabled C(sp3)–H activation according to the reaction types, categorized into the intramolecular/intermolecular C(sp3)–H functionalization, and hydride reduction.
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Affiliation(s)
- Xiao-De An
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
- College of Marine Science and Engineering
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17
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Gandamana DA, Gagosz F, Chiba S. Diastereoselective hydroalkylation of aryl alkenes enabled by Remote hydride transfer. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Li Y, Li F, Shi S. Expedient Synthesis of Ketones
via
N
‐Heterocyclic
Carbene/
Nickel‐Catalyzed Redox‐Economical
Coupling of Alcohols and Alkynes
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000019] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yu‐Qing Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Feng Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Shi‐Liang Shi
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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19
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Wang ZQ, Hou C, Zhong YF, Lu YX, Mo ZY, Pan YM, Tang HT. Electrochemically Enabled Double C-H Activation of Amides: Chemoselective Synthesis of Polycyclic Isoquinolinones. Org Lett 2019; 21:9841-9845. [PMID: 31829020 DOI: 10.1021/acs.orglett.9b03682] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We developed an electrochemically enabled dehydrogenative annulation reaction of amides and alkynes for the synthesis of antitumor polycyclic isoquinolinones through a double C-H activation route. No external oxidant is required in this reaction, and electricity is used for Ru catalyst circulation. The most remarkable feature of this reaction is the effective improvement of product regioselectivity under mild electrolytic conditions in comparison with previously set strong oxidant conditions.
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Affiliation(s)
- Zi-Qiang Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Cheng Hou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Yuan-Fang Zhong
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Yu-Xuan Lu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Zu-Yu Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Hai-Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
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20
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Xu Z, Wang XG, Wei YH, Ji KL, Zheng JF, Ye JL, Huang PQ. Organocatalytic, Enantioselective Reductive Bis-functionalization of Secondary Amides: One-Pot Construction of Chiral 2,2-Disubstituted 3-Iminoindoline. Org Lett 2019; 21:7587-7591. [PMID: 31479277 DOI: 10.1021/acs.orglett.9b02862] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report the first catalytic, enantioselective reductive bis-functionalization of common amides, which provides a facile access to a variety of 2,2-disubstituted 3-iminoindolines in good yields and with excellent enantioselectivities. The reaction conditions are quite mild and can be run on a gram scale. In this one-pot reaction, three C-C bonds, one ring, and one nitrogen-containing tetrasubstituted carbon stereocenter are created in a catalytic enantioselective manner.
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Affiliation(s)
- Zhen Xu
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Xiao-Gang Wang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Yong-Hua Wei
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Kan-Lei Ji
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Jian-Feng Zheng
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China.,The State Key Laboratory of Bio-organic and Natural Products Chemistry, CAS , 354 Fenglin Road , Shanghai 200032 , P.R. China
| | - Jian-Liang Ye
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
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21
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Geng H, Huang P. Ketone Synthesis by Direct, Orthogonal Chemoselective Hydroacylation of Alkenes with Amides: Use of Alkenes as Surrogates of Alkyl Carbanions. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900252] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hui Geng
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical BiologyCollege of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Pei‐Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical BiologyCollege of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
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