1
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Zhou X, Qian F, Zhou W, Wang A, Hou T, Tian X, Ji S, He M, Qian J. Cooperation between the Cu + and Cu 2+ species in CuCoAl layered double hydroxide and the substrate promoting effect afford a really simple protocol for the efficient synthesis of quinazolines. Org Biomol Chem 2024; 22:4494-4501. [PMID: 38742377 DOI: 10.1039/d4ob00481g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
In this study, a really simple and efficient catalytic protocol for the construction of quinazolines from alcohol and diamine has been developed based on CuCoAl layered double hydroxide (CuCoAl-LDH). The developed CuCoAl-LDH catalyst could accelerate the cascade reactions without any additives and tolerate various alcohols with satisfactory yields. Cooperation between the Cu+ and Cu2+ species in CuCoAl-LDH was observed in the cascade reaction, and they are believed to be responsible for the oxidation of alcohol and dehydrogenation of the intermediate, respectively. The promoting effect of the substrate diamine was observed in the oxidation of alcohol, which simplifies the reaction system by eliminating the requirement for a base additive. The catalytic system exhibited highly practical potential for the synthesis of quinazolines, as demonstrated through recyclability investigations and scale-up experiments. A possible catalytic mechanism has been proposed based on a series of control experiments and EPR analysis.
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Affiliation(s)
- Xue Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Fei Qian
- Jiangsu Lingfei Chemical Co., LTD, Wuxi 214264, China
| | - Weiyou Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Anwei Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Tao Hou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Xiaoting Tian
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Shuliang Ji
- Jiangsu Yabang Dyestuff Co., LTD, 213163 Changzhou, China
| | - Mingyang He
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
| | - Junfeng Qian
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, 213164 Changzhou, China
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2
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Chen S, Ji YS, Choi Y, Youn SW. One-Pot Three-Component Reaction for the Synthesis of 3,4-Dihydroquinazolines and Quinazolin-4(3 H)-ones. J Org Chem 2024; 89:6428-6443. [PMID: 38608000 DOI: 10.1021/acs.joc.4c00458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
A highly efficient and straightforward one-pot synthesis of diversely substituted 3,4-dihydroquinazolines and quinazolin-4(3H)-ones has been achieved through a domino three-component assembly reaction of arenediazonium salts, nitriles, and bifunctional aniline derivatives. This new protocol involves three C-N bond formations through the initial formation of N-arylnitrilium intermediates from arenediazonium salts and nitriles, followed by the sequential nucleophilic addition and cyclization reactions with bifunctional anilines, leading to such N-heterocyclic compounds of biological and pharmacological importance. This method offers a simple, expedient, and robust approach with the use of amenable and easily accessible reactants/reagents under metal-free mild conditions, good functional group tolerance, and high efficiency. The synthetic applications were also demonstrated by derivatization of the products obtained from these processes and syntheses of a diverse range of valuable polycyclic N-heterocycles.
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Affiliation(s)
- Shiwei Chen
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Yeong Shin Ji
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Yuri Choi
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
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3
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Klaßmüller T, Tringali C, Bracher F. A novel approach to 2-arylmethyl-2,3-dihydro-4(1 H)-quinazolinones. Total synthesis of the alkaloids glycozolone-A and glycozolone-B. Nat Prod Res 2024; 38:119-127. [PMID: 35942894 DOI: 10.1080/14786419.2022.2110095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/28/2022] [Indexed: 10/15/2022]
Abstract
2-Arylmethyl-2,3-dihydro-4(1H)-quinazolinones are a small subgroup of the class of quinazolin-4-one alkaloids, and most published total syntheses require the use of unstable and poorly accessible arylacetaldehydes. Here we show that easily available, stable ω-methoxystyrenes are versatile substitutes for arylacetaldehydes. This new methodology was applied to the total synthesis of the alkaloids glycozolone-A and glycozolone-B. The limitations of this new approach were analyzed as well. In this course, new total syntheses of two 2-arylmethyl-4(1H)-quinazolinone alkaloids (glycosminine, 2-(4-hydroxybenzyl)-4(1H)-quinazolinone) were developed as well.
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Affiliation(s)
- Thomas Klaßmüller
- Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University, Munich, Germany
| | - Claudia Tringali
- Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University, Munich, Germany
| | - Franz Bracher
- Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University, Munich, Germany
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4
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Tran VH, Luu TG, Nguyen AT, Kim HK. Direct transformation of benzyl esters into esters, amides, and anhydrides using catalytic ferric(III) chloride under mild conditions. Org Biomol Chem 2023; 21:8494-8499. [PMID: 37861427 DOI: 10.1039/d3ob01443f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
A facile one-pot transformation of benzyl esters into esters, amides, and anhydrides is described. α,α-Dichlorodiphenylmethane and FeCl3 were employed as the chlorinating agent and catalyst respectively to convert benzyl esters into acid chloride intermediates, which directly reacted with alcohols, amines, and carboxylic acids. Various esters, amides, and anhydrides were readily obtained with high yields under mild conditions. This method is promising for the practical synthesis of esters, amides, and anhydrides from benzyl esters.
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Affiliation(s)
- Van Hieu Tran
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, 54907, Republic of Korea.
| | - Truong Giang Luu
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, 54907, Republic of Korea.
| | - Anh Thu Nguyen
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, 54907, Republic of Korea.
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, 54907, Republic of Korea.
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, 54907, Republic of Korea
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5
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Tran VH, Nguyen AT, Kim HK. Tin(II) Chloride-Catalyzed Direct Esterification and Amidation of tert-Butyl Esters Using α,α-Dichlorodiphenylmethane Under Mild Conditions. J Org Chem 2023; 88:13291-13302. [PMID: 37641453 DOI: 10.1021/acs.joc.3c01588] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
A practical one-pot synthesis of esters and amides from tert-butyl esters via acid chloride was developed. Reactions of tert-butyl esters with α,α-dichlorodiphenylmethane as the chlorinating agent and SnCl2 as catalyst-generated acid chloride intermediates in situ were subsequently used in reactions with a variety of alcohols and amines to afford the corresponding esters and amides in high yields under mild reaction conditions. This catalytic synthetic procedure offers an effective strategy for the facile esterification and amidation of tert-butyl esters.
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Affiliation(s)
- Van Hieu Tran
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - Anh Thu Nguyen
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
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6
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Jiang W, Li Y, Liu JQ, Wang XS. Copper-Catalyzed Consecutive Ullmann, Decarboxylation, Oxidation, and Dehydration Reaction for Synthesis of Pyrrolo or Pyrido[1,2- a]imidazo[1,2- c]quinazolines. Org Lett 2023; 25:5123-5127. [PMID: 37382582 DOI: 10.1021/acs.orglett.3c01873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
A protocol for a copper-catalyzed intermolecular cross-coupling cascade between 2-(2-bromoaryl)-1H-benzo[d]imidazole analogues and proline or pipecolic acid has been developed. The developed protocol allows access to a variety of synthetically useful N-fused pyrrolo or pyrido[1,2-a]imidazo[1,2-c]quinazoline scaffolds with high efficiency and good functional group compatibility. Proline or pipecolic acid plays a dual role in the reaction: as ligand and reactants. A mechanistically consecutive approach for the Ullmann coupling, decarboxylation, oxidation, and dehydration reaction process was presented.
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Affiliation(s)
- Weidong Jiang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Ye Li
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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7
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Xu Y, Li Q, Ye R, Xu B, Zhou X. Electrochemical Oxidative C-H Amination through a Ritter-Type Reaction. J Org Chem 2023. [PMID: 37262003 DOI: 10.1021/acs.joc.3c00609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A straightforward strategy for direct benzylic C-H bond amination via an electrochemical Ritter-type reaction is developed. The reaction demonstrates simpler and milder reaction conditions over the existing methods without extra mediator. Moderate to excellent yields up to 94% of the desired amide products were obtained with a broad substrate scope. The removal of the Ac group by a simple step can afford NH-free benzylic amines, providing a suitable approach for the late-stage functionalization of bioactive molecules.
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Affiliation(s)
- Yiwen Xu
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu, Sichuan 610064, China
| | - Qiang Li
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu, Sichuan 610064, China
| | - Runyou Ye
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu, Sichuan 610064, China
| | - Buyi Xu
- National Anti-Drug Laboratory Sichuan Regional Center, 36 Yunling Road, Chengdu, Sichuan 610200, P.R. China
| | - Xiangge Zhou
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu, Sichuan 610064, China
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8
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Shaifali, Sharma P, Mehara P, Das P. Supported Palladium-Catalyzed Tandem Synthesis of 2-(Alkylamino/amino)-3-arylquinazolin-4(3H)-ones Employing CO Source. Chem Asian J 2023; 18:e202201288. [PMID: 36748920 DOI: 10.1002/asia.202201288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/24/2023] [Accepted: 02/06/2023] [Indexed: 02/08/2023]
Abstract
Herein, we demonstrated heterogeneous and recyclable polystyrene-supported palladium (Pd@PS) nanoparticles (NPs) catalyzed tandem addition and intramolecular aminocarbonylative cyclization approach for the synthesis of potentially bioactive 2-(alkylamino/amino)-3-arylquinazolin-4(3H)-one analogues from 2-iodophenylcarbodiimides employing amines as nucleophiles and oxalic acid as an ex-situ CO alternative. Various cyclic/acyclic primary and secondary amines were employed and selectively produced substituted 2-(alkylamino)-3-arylquinazolin-4(3H)-ones in good to excellent yields. In addition, we extended the developed strategy to fix two ammonium carbamate and oxalic acid as gaseous NH3 and CO sources respectively, for the synthesis of 2-amino-3-arylquinazolin-4(3H)-one derivatives. Furthermore, gram scale applicability, diverse substrate scope and high recyclability of the Pd@PS catalyst were the major achievements of the developed protocol.
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Affiliation(s)
- Shaifali
- Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Poonam Sharma
- Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pushkar Mehara
- Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pralay Das
- Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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9
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Dutta N, Dutta B, Dutta A, Sarma B, Sarma D. Room temperature ligand-free Cu 2O-H 2O 2 catalyzed tandem oxidative synthesis of quinazoline-4(3 H)-one and quinazoline derivatives. Org Biomol Chem 2023; 21:748-753. [PMID: 36602007 DOI: 10.1039/d2ob02085h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An efficient and simple copper catalytic system has been developed for the synthesis of medicinally important 2-substituted quinazoline-4(3H)-ones from 2-aminobenzonitrile and benzyl alcohol derivatives and additionally 2-substituted quinazolines from 2-aminobenzylamine and benzaldehyde derivatives. Mild oxidant H2O2 was utilized, providing excellent product yields. The molecular structure of one of the compounds was substantiated through SC-XRD. The versatility of the protocol was demonstrated through gram-scale syntheses.
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Affiliation(s)
- Nilakshi Dutta
- Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India.
| | - Bidyutjyoti Dutta
- Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India.
| | - Apurba Dutta
- Department of Chemistry, DHSK College, Dibrugarh-786001, Assam, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Tezpur-784028, Assam, India
| | - Diganta Sarma
- Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India.
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10
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Feng M, Yan Q, Yang L, Ye Y, Liu G, Wang W. Selective synthesis of 2‐substituted 2,3‐dihydroquinazolin‐4(1
H
)‐ones and quinazolin‐4(3
H
)‐ones catalyzed by Schiff base dioxomolybdenum(VI) complex. INT J CHEM KINET 2022. [DOI: 10.1002/kin.21622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Mengmeng Feng
- School of Chemistry and Material Science Ludong University Yantai China
| | - Qingmin Yan
- School of Chemistry and Material Science Ludong University Yantai China
| | - Lan Yang
- School of Chemistry and Material Science Ludong University Yantai China
| | - Yanan Ye
- School of Chemistry and Material Science Ludong University Yantai China
| | - Gang Liu
- School of Chemistry and Material Science Ludong University Yantai China
| | - Weili Wang
- School of Chemistry and Material Science Ludong University Yantai China
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11
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Zhao H, Wu Y, Zhang D, Huang H. Mild, metal-free synthesis of 2-substituted quinazolinones from imidates and methyl 2-aminobenzoates or 2-aminobenzamides. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Lai H, Xu J, Lin J, Su B, Zha D. Chemo-selective control of Ritter-type reaction by coordinatively unsaturated inorganic salt hydrates. Org Chem Front 2022. [DOI: 10.1039/d1qo01832a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We used a readily available water source, MgSO4·2H2O, to realize the control of the chemo-selectivity of the Ritter-type reaction efficiently.
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Affiliation(s)
- Huifang Lai
- Department of Medicinal Chemistry, School of Pharmacy, Fujian Medical University, Fuzhou 350004, Fujian Province, China
| | - Jiexin Xu
- Department of Medicinal Chemistry, School of Pharmacy, Fujian Medical University, Fuzhou 350004, Fujian Province, China
| | - Jin Lin
- Department of Medicinal Chemistry, School of Pharmacy, Fujian Medical University, Fuzhou 350004, Fujian Province, China
| | - Biling Su
- Department of Medicinal Chemistry, School of Pharmacy, Fujian Medical University, Fuzhou 350004, Fujian Province, China
| | - Daijun Zha
- Department of Medicinal Chemistry, School of Pharmacy, Fujian Medical University, Fuzhou 350004, Fujian Province, China
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, Fujian Medical University, China
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13
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Sahoo S, Pal S. Copper-Catalyzed One-Pot Synthesis of Quinazolinones from 2-Nitrobenzaldehydes with Aldehydes: Application toward the Synthesis of Natural Products. J Org Chem 2021; 86:18067-18080. [PMID: 34813342 DOI: 10.1021/acs.joc.1c02343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A novel, efficient, and atom-economical approach for the construction of quinazolinones from 2-nitrobenzaldehydes has been unveiled via copper-catalyzed nitrile formation, hydrolysis, and reduction in one pot for the first time. In this reaction, urea is used as a source of nitrogen for nitrile formation, hydrazine hydrate is used for both the reduction of the nitro group and the hydrolysis of nitrile, and atmospheric oxygen is used as the sole oxidant. The method portrays a wide substrate scope with good functional group tolerances. Moreover, this method was applied for the synthesis of schizocommunin, tryptanthrin, phaitanthrin-A, phaitanthrin-B, and 8H-quinazolino[4,3-b]quinazolin-8-one.
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Affiliation(s)
- Subrata Sahoo
- Organic Chemistry Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha 752050, India
| | - Shantanu Pal
- Organic Chemistry Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha 752050, India
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14
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Guan YQ, Min XT, He GC, Ji DW, Guo SY, Hu YC, Chen QA. The serendipitous effect of KF in Ritter reaction: Photo-induced amino-alkylation of alkenes. iScience 2021; 24:102969. [PMID: 34466792 PMCID: PMC8383004 DOI: 10.1016/j.isci.2021.102969] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/28/2021] [Accepted: 08/06/2021] [Indexed: 12/04/2022] Open
Abstract
Ritter reaction has been recognized as an elegant strategy to construct the C−N bond. Its key feature is forming the carbocation for nucleophilic attack by nitriles. Herein, we report a complementary visible-light-induced three-component Ritter reaction of alkenes, nitriles, and α-bromo nitriles/esters, thereby providing mild and rapid access to various γ-amino nitriles/acids. Mechanistic studies indicated that traceless fluoride relay, transforming KF into imidoyl fluoride intermediate, is critical for the efficient reaction switch from atom transfer radical addition (ATRA) to the Ritter reaction. This approach to amino-alkylation of alkenes is chemoselective and operationally simple. Using light irradiation to promote amino-alkylation of alkenes Using KF to facilitate three-component Ritter reaction Access functionalized amides under mild conditions
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Affiliation(s)
- Yu-Qing Guan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiang-Ting Min
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gu-Cheng He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ding-Wei Ji
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Shi-Yu Guo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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15
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Synthesis of 1,5-diazocin-2-ones. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3184-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Balaji S, Balamurugan G, Ramesh R, Semeril D. Palladium(II) N^O Chelating Complexes Catalyzed One-Pot Approach for Synthesis of Quinazolin-4(3H)-ones via Acceptorless Dehydrogenative Coupling of Benzyl Alcohols and 2-Aminobenzamide. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00814] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sundarraman Balaji
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - Gunasekaran Balamurugan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - David Semeril
- Laboratoire de Chimie Inorganique et Catalyse, Institut de Chimie, Universite de Strasbourg, UMR 7177, CNRS, Strasbourg, 67070, France
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17
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Chen ME, Chen XW, Hu YH, Ye R, Lv JW, Li B, Zhang FM. Recent advances of Ritter reaction and its synthetic applications. Org Chem Front 2021. [DOI: 10.1039/d1qo00496d] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review provides a comprehensive survey of Ritter reactions from 2014 to 2020.
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Affiliation(s)
- Meng-En Chen
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiao-Wei Chen
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yue-Hong Hu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Rui Ye
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jian-Wei Lv
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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18
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Dong Y, Zhang J, Yang J, Yan C, Wu Y. An efficient transition-metal-free route to quinazolin-4(3 H)-ones via 2-aminobenzamides and thiols. NEW J CHEM 2021. [DOI: 10.1039/d1nj03179a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
An efficient approach to quinazolin-4(3H)-ones was developed by a one-pot intermolecular annulation reaction of o-amino benzamides and thiols.
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Affiliation(s)
- Yibo Dong
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Jinli Zhang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P. R. China
- College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jinchen Yang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Congcong Yan
- College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, 450052, P. R. China
- College of Chemistry, Green Catalytic Center, Zhengzhou University, Zhengzhou 450001, P. R. China
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19
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Zhang Y, Xiong W, Chen L, Shao Y, Li R, Chen Z, Ge J, Lv N, Chen J. Palladium-catalyzed cascade reactions in aqueous media: synthesis and photophysical properties of pyrazino-fused quinazolinones. Org Chem Front 2021. [DOI: 10.1039/d0qo01244k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A convenient, efficient, and direct approach toward the synthesis of pyrazino-fused quinazolinone frames has been developed. The photophysical properties of 3e with the AIE effect were investigated.
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Affiliation(s)
- Yetong Zhang
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Wenzhang Xiong
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Lepeng Chen
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Renhao Li
- School of Pharmaceutical Sciences
- Wenzhou Medical University
- Wenzhou 325035
- P. R. China
| | - Zhongyan Chen
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Jingyuan Ge
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Ningning Lv
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
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20
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Mohammadi Ziarani G, Soltani Hasankiadeh F, Mohajer F. Recent Applications of Ritter Reactions in Organic Syntheses. ChemistrySelect 2020. [DOI: 10.1002/slct.202003470] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | | | - Fatemeh Mohajer
- Department of Chemistry Faculty of Physics and Chemistry Alzahra University, Tehran Iran
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21
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Malasala S, Gour J, Ahmad MN, Gatadi S, Shukla M, Kaul G, Dasgupta A, Madhavi YV, Chopra S, Nanduri S. Copper mediated one-pot synthesis of quinazolinones and exploration of piperazine linked quinazoline derivatives as anti-mycobacterial agents. RSC Adv 2020; 10:43533-43538. [PMID: 35519697 PMCID: PMC9058414 DOI: 10.1039/d0ra08644d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 10/29/2020] [Indexed: 11/26/2022] Open
Abstract
A facile method was developed for the synthesis of quinazolinone derivatives in a one-pot condensation reaction via in situ amine generation using ammonia as the amine source and with the formation of four new C-N bonds in good to excellent yields. With the optimised method, we synthesized a library of piperazine linked quinazoline derivatives and the synthesized compounds were evaluated for their inhibitory activity against Mycobacterium tuberculosis. The compounds 8b, 8e, 8f, 8m, 8n and 8v showed potent anti-mycobacterial activity with MIC values of 2-16 μg mL-1. All the synthesized compounds follow Lipinski's rules for drug likeness.
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Affiliation(s)
- Satyaveni Malasala
- National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Jitendra Gour
- National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Md Naiyaz Ahmad
- Division of Microbiology, CSIR-Central Drug Research Institute Sitapur Road, Sector 10, Janakipuram Extension Lucknow-226031 Uttar Pradesh India
| | - Srikanth Gatadi
- National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Manjulika Shukla
- Division of Microbiology, CSIR-Central Drug Research Institute Sitapur Road, Sector 10, Janakipuram Extension Lucknow-226031 Uttar Pradesh India
| | - Grace Kaul
- Division of Microbiology, CSIR-Central Drug Research Institute Sitapur Road, Sector 10, Janakipuram Extension Lucknow-226031 Uttar Pradesh India
| | - Arunava Dasgupta
- Division of Microbiology, CSIR-Central Drug Research Institute Sitapur Road, Sector 10, Janakipuram Extension Lucknow-226031 Uttar Pradesh India
| | - Y V Madhavi
- National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Sidharth Chopra
- Division of Microbiology, CSIR-Central Drug Research Institute Sitapur Road, Sector 10, Janakipuram Extension Lucknow-226031 Uttar Pradesh India
| | - Srinivas Nanduri
- National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
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22
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Wang X, Shang S, Tian Q, Wang Y, Wu H, Li Z, Zhou S, Liu H, Dai Z, Luo W, Li D, Xiao X, Wang S, Yuan J. Imidazolium chloride as an additive for synthesis of 4(3H)-quinazolinones using anthranilamides and DMF derivatives. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131480] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Abe T, Kosaka Y, Kawasaki T, Ohata Y, Yamashiro T, Yamada K. Revisiting 2-Alkoxy-3-bromoindolines: Control C-2 vs. C-3 Elimination for Regioselective Synthesis of Alkoxyindoles. Chem Pharm Bull (Tokyo) 2020; 68:555-558. [DOI: 10.1248/cpb.c20-00135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
| | - Yuta Kosaka
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
| | - Takaaki Kawasaki
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
| | - Yuki Ohata
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
| | - Toshiki Yamashiro
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
| | - Koji Yamada
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
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24
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Recent Synthetic Approaches towards Small Molecule Reactivators of p53. Biomolecules 2020; 10:biom10040635. [PMID: 32326087 PMCID: PMC7226499 DOI: 10.3390/biom10040635] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/13/2020] [Accepted: 04/15/2020] [Indexed: 12/26/2022] Open
Abstract
The tumor suppressor protein p53 is often called "the genome guardian" and controls the cell cycle and the integrity of DNA, as well as other important cellular functions. Its main function is to trigger the process of apoptosis in tumor cells, and approximately 50% of all cancers are related to the inactivation of the p53 protein through mutations in the TP53 gene. Due to the association of mutant p53 with cancer therapy resistance, different forms of restoration of p53 have been subject of intense research in recent years. In this sense, this review focus on the main currently adopted approaches for activation and reactivation of p53 tumor suppressor function, focusing on the synthetic approaches that are involved in the development and preparation of such small molecules.
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25
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Wang ZC, Ouyang GP, Zhang LQ, Liu JM, Gan YY, Shao LH, Fu YH. Synthesis and Evaluation of Biological Properties of 2-(2-(Phenoxy)pyridin-3-yl)quinazolin-4(3H)-one Derivatives. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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26
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Vu HM, Chen F, Li X. Acetoxylation and Halogenation of 2‐Arylbenzoxazinones via Palladium‐Catalyzed C(sp
2
)‐H Bond Oxidation. ChemistrySelect 2019. [DOI: 10.1002/slct.201902611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Huu Manh Vu
- School of Chemical and Biological EngineeringUniversity of Science and Technology Beijing 30 Xueyuan Road, Haidian District Beijing 100083 PR China
| | - Fei‐Wu Chen
- School of Chemical and Biological EngineeringUniversity of Science and Technology Beijing 30 Xueyuan Road, Haidian District Beijing 100083 PR China
| | - Xu‐Qin Li
- School of Chemical and Biological EngineeringUniversity of Science and Technology Beijing 30 Xueyuan Road, Haidian District Beijing 100083 PR China
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27
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Tashrifi Z, Mohammadi-Khanaposhtani M, Biglar M, Larijani B, Mahdavi M. Isatoic Anhydride: A Fascinating and Basic Molecule for the Synthesis of Substituted Quinazolinones and Benzo di/triazepines. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190701142930] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review article is focused on the synthesis of compounds with quinazolinones and benzo di/triazepine scaffolds. These invaluable derivatives are of great interest in medicinal and pharmaceutical studies because of their important biological properties. Quinazolinones have diverse applications due to their antibacterial, analgesic, antiinflammatory, antifungal, antimalarial, antihypertensive, CNS depressant, anticonvulsant, antihistaminic, antiparkinsonism, antiviraland and anticancer activities. On the other hand, pharmacological properties of benzodiazepines include antianxiety, anticancer, anticonvulsant, antagonists of cholecystokinin receptors (CCK), antileishmanial, sleep-inducing muscle relaxant and several other useful and interesting properties. As an example, three main categories of drugs, namely anxiolytics, sedative hypnotics (sleep inducers) and anticonvulsants are constructed by 1,4-benzodiazepines. Finally, benzotriazepines are believed to possess various pharmacological properties such as antipsychotic and antitumor activities. Hence, this review is divided into three major sections, considering quinazolinones, benzodiazepines and benzotriazepines. In the first section, we take a brief look at various approaches towards synthesis of substituted quinazolin-4(3H)-ones and 2,3-dihydroquinazolin-4(1H)-ones. Also in this section, we try to give an overview of the synthetic routes and strategies recently reported for the generation of various classes of substituted 4(3H)-quinazolinones and 2,3-dihydroquinazolin-4(1H)-ones. Accordingly, quinazolin-4(3H)-ones, were subdivided into three major classes: 2-substituted, 3-substituted and 2,3-disubstituted-quinazolinones. 2,3- dihydroquinazolin-4(1H)-ones also were subdivided into six sub-categories: 2-monosubstituted, 2,2- disubstituted, 2,3-disubstituted, 1,2,3-trisubstituted, 2,2,3-trisubstituted 2,3-dihydroquinazolin-4(1H)-ones and boron-containing quinazoline-4(1H)-ones. In the other two sections, we cover the literature related to synthesis of benzo di/triazepine. The most recent developments are highlighted with a special emphasis on new synthetic routes based on isatoic anhydride as starting material.
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Affiliation(s)
- Zahra Tashrifi
- Department of Chemistry, University of Guilan, Rasht PO Box 41335-1914, Iran
| | | | - Mahmood Biglar
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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28
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Wang Q, Lv M, Liu J, Li Y, Xu Q, Zhang X, Cao H. Efficient Synthesis of Quinazolinones by Transition-Metal-Free Direct Aerobic Oxidative Cascade Annulation of Alcohols with o-Aminoarylnitriles. CHEMSUSCHEM 2019; 12:3043-3048. [PMID: 30791215 DOI: 10.1002/cssc.201900265] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/20/2019] [Indexed: 06/09/2023]
Abstract
A mild and atom-economic method was developed for direct and efficient synthesis of quinazolinones through a transition-metal-free aerobic oxidative cascade annulation reaction of widely available o-aminoarylnitriles and alcohols. Air could be employed as an effective oxidant under mild conditions, generating water as the only byproduct. Possibly owing to the "cesium effect", the water-soluble base CsOH was found to be crucial in all key steps of the reaction mechanism. Because a wide range of substrates can be used to prepare substituted quinazolinones without contamination by transition-metal residues, this method may be of interest for application in pharmaceutical synthesis. Possible reaction paths were also proposed according to control reactions.
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Affiliation(s)
- Qi Wang
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Miao Lv
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Jianping Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P.R. China
| | - Yang Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P.R. China
| | - Qing Xu
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, P.R. China
| | - Xu Zhang
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Hongen Cao
- School of Chemistry and Chemical Engineering, Institute of Pesticide of School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
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29
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Abe T, Itoh T, Terasaki M. Total Synthesis of Fontanesine B and Its Isomer: Their Antiproliferative Activity against Human Colorectal Cancer Cells. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical SciencesHealth Sciences University of Hokkaido, Ishikari-Tobetsu Hokkaido 061-0293 Japan
| | - Tomoki Itoh
- Faculty of Pharmaceutical SciencesHealth Sciences University of Hokkaido, Ishikari-Tobetsu Hokkaido 061-0293 Japan
| | - Masaru Terasaki
- Faculty of Pharmaceutical SciencesHealth Sciences University of Hokkaido, Ishikari-Tobetsu Hokkaido 061-0293 Japan
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30
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Xie L, Lu C, Jing D, Ou X, Zheng K. Metal-Free Synthesis of Polycyclic Quinazolinones Enabled by a (NH4
)2
S2
O8
-Promoted Intramolecular Oxidative Cyclization. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900469] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Lijuan Xie
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; 610064 Chengdu P. R. China
| | - Cong Lu
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; 610064 Chengdu P. R. China
| | - Dong Jing
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; 610064 Chengdu P. R. China
| | - Xinrui Ou
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; 610064 Chengdu P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; 610064 Chengdu P. R. China
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31
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Abe T, Aoyama S, Ohmura M, Taniguchi M, Yamada K. Revisiting Furodiindolines: One-Pot Synthesis of Furodiindolines Using Indole 2,3-Epoxide Surrogates and Their Synthetic Applications. Org Lett 2019; 21:3367-3371. [PMID: 30997809 DOI: 10.1021/acs.orglett.9b01108] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Furodiindolines have emerged as versatile intermediates in various transformations, which are easily obtained from indole 2,3-epoxide surrogates via a one-pot procedure and allowed access to heterocyclic compounds with structural diversity and complexity. Four types of transformations from the furodiindolines have been achieved: (i) dehydrative rearrangement to afford 2,3'-biindoles, (ii) hydrolysis/cyclization to give 3,4-disubstituted quinolines, (iii) ring-opening/cyclization to give pyrroloindolines, and (iv) aminal cleavage to give a 3,3-disubstituted 2-oxindole.
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Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences , Health Sciences University of Hokkaido , Ishikari-tobetsu, Hokkaido 0610293 , Japan
| | - Sakura Aoyama
- Faculty of Pharmaceutical Sciences , Health Sciences University of Hokkaido , Ishikari-tobetsu, Hokkaido 0610293 , Japan
| | - Masami Ohmura
- Faculty of Pharmaceutical Sciences , Health Sciences University of Hokkaido , Ishikari-tobetsu, Hokkaido 0610293 , Japan
| | - Masato Taniguchi
- Faculty of Pharmaceutical Sciences , Health Sciences University of Hokkaido , Ishikari-tobetsu, Hokkaido 0610293 , Japan
| | - Koji Yamada
- Faculty of Pharmaceutical Sciences , Health Sciences University of Hokkaido , Ishikari-tobetsu, Hokkaido 0610293 , Japan
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32
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Abe T, Kosaka Y, Asano M, Harasawa N, Mishina A, Nagasue M, Sugimoto Y, Katakawa K, Sueki S, Anada M, Yamada K. Direct C4-Benzylation of Indoles via Tandem Benzyl Claisen/Cope Rearrangements. Org Lett 2019; 21:826-829. [DOI: 10.1021/acs.orglett.8b04120] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 061-0293, Japan
| | - Yuta Kosaka
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 061-0293, Japan
| | - Miku Asano
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 061-0293, Japan
| | - Natsuki Harasawa
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 061-0293, Japan
| | - Akane Mishina
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 061-0293, Japan
| | - Misato Nagasue
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 061-0293, Japan
| | - Yuri Sugimoto
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 061-0293, Japan
| | - Kazuaki Katakawa
- Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi 202-8585, Japan
| | - Shunsuke Sueki
- Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi 202-8585, Japan
| | - Masahiro Anada
- Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi 202-8585, Japan
| | - Koji Yamada
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 061-0293, Japan
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33
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Zhang W, Liu S, Maiga RI, Pelletier J, Brown LE, Wang TT, Porco JA. Chemical Synthesis Enables Structural Reengineering of Aglaroxin C Leading to Inhibition Bias for Hepatitis C Viral Infection. J Am Chem Soc 2019; 141:1312-1323. [PMID: 30590924 PMCID: PMC6583776 DOI: 10.1021/jacs.8b11477] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
As a unique rocaglate (flavagline) natural product, aglaroxin C displays intriguing biological activity by inhibiting hepatitis C viral entry. To further elucidate structure-activity relationships and diversify the pyrimidinone scaffold, we report a concise synthesis of aglaroxin C utilizing a highly regioselective pyrimidinone condensation. We have prepared more than 40 aglaroxin C analogues utilizing various amidine condensation partners. Through biological evaluation of analogues, we have discovered two lead compounds, CMLD012043 and CMLD012044, which show preferential bias for the inhibition of hepatitis C viral entry vs translation inhibition. Overall, the study demonstrates the power of chemical synthesis to produce natural product variants with both target inhibition bias and improved therapeutic indexes.
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Affiliation(s)
- Wenhan Zhang
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA 02215, USA
| | - Shufeng Liu
- Laboratory of Vector-borne Viral Diseases, Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20903, USA
| | - Rayelle I. Maiga
- Department of Biochemistry, McGill University, Montreal, Quebec, H3G1Y6, Canada
| | - Jerry Pelletier
- Department of Biochemistry, McGill University, Montreal, Quebec, H3G1Y6, Canada
- Department of Oncology, McGill University, Montreal, Quebec, H3G1Y6, Canada
- Rosalind & Morris Goodman Cancer Research Centre, McGill University, Montreal, Quebec, H3G1Y6, Canada
| | - Lauren E. Brown
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA 02215, USA
| | - Tony T. Wang
- Laboratory of Vector-borne Viral Diseases, Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20903, USA
| | - John A. Porco
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA 02215, USA
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34
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Itoh T, Chiba Y, Kawaguchi S, Koitaya Y, Yoneta Y, Yamada K, Abe T. Total synthesis of pyrano[3,2- e]indole alkaloid fontanesine B by a double cyclization strategy. RSC Adv 2019; 9:10420-10424. [PMID: 35520921 PMCID: PMC9062488 DOI: 10.1039/c9ra02321f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 03/27/2019] [Indexed: 12/01/2022] Open
Abstract
The regioselective synthesis of pyrano[3,2-e]indole alkaloid fontanesine B by two different cyclizations is described. The complete regioselectivity is controlled by the C4 Pictet–Spengler cyclization, in which an iminium ion acts as a transient directing (TDG) group. Furthermore, carbolines were constructed by a new Bischler–Napieralski-type cyclization, in which an unprecedented trichloromethyl carbamate serves as a reactive group. The regioselective synthesis of pyrano[3,2-e]indole alkaloid fontanesine B have been accomplished by C4 Pictet–Spengler cyclization and Bischler–Napieralski-type cyclization of a trichloromethyl carbamate.![]()
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Affiliation(s)
- Tomoki Itoh
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Hokkaido 0610293
- Japan
| | - Yuusuke Chiba
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Hokkaido 0610293
- Japan
| | - Shunsuke Kawaguchi
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Hokkaido 0610293
- Japan
| | - Yuki Koitaya
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Hokkaido 0610293
- Japan
| | - Yuuma Yoneta
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Hokkaido 0610293
- Japan
| | - Koji Yamada
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Hokkaido 0610293
- Japan
| | - Takumi Abe
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Hokkaido 0610293
- Japan
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35
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Kang H, Wang W, Sun Q, Yang S, Jin J, Zhang X, Ren X, Zhang J, Zhou J. Microwave-assisted synthesis of quinazolin-4(3H)-ones catalyzed by SbCl3. HETEROCYCL COMMUN 2018. [DOI: 10.1515/hc-2018-0115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Abstract
Antimony(III) trichloride (SbCl3) is an effective catalyst (1 mol%) for the condensation of anthranilic amide with various aldehydes or ketones to quinazolin-4(3H)-one derivatives in good to excellent yields under microwave irradiation. The process is carried out within several minutes under solvent-free conditions. This general methodology has the advantages of simplicity, mild reaction conditions and high yields of products.
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36
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Gavin JT, Annor-Gyamfi JK, Bunce RA. Quinazolin-4(3 H)-ones and 5,6-Dihydropyrimidin-4(3 H)-ones from β-Aminoamides and Orthoesters. Molecules 2018; 23:molecules23112925. [PMID: 30423947 PMCID: PMC6278269 DOI: 10.3390/molecules23112925] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 11/08/2018] [Indexed: 02/07/2023] Open
Abstract
Quinazolin-4(3H)-ones have been prepared in one step from 2-aminobenzamides and orthoesters in the presence of acetic acid. Simple 2-aminobenzamides were easily converted to the heterocycles by refluxing in absolute ethanol with 1.5 equivalents of the orthoester and 2 equivalents of acetic acid for 12–24 h. Ring-substituted and hindered 2-aminobenzamides as well as cases incorporating an additional basic nitrogen required pressure tube conditions with 3 equivalents each of the orthoester and acetic acid in ethanol at 110 °C for 12–72 h. The reaction was tolerant towards functionality on the benzamide and a range of structures was accessible. Workup involved removal of the solvent under vacuum and either recrystallization from ethanol or trituration with ether-pentane. Several 5,6-dihydropyrimidin-4(3H)-ones were also prepared from 3-amino-2,2-dimethylpropionamide. All products were characterized by melting point, FT-IR, 1H-NMR, 13C-NMR, and HRMS.
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Affiliation(s)
- Joshua T Gavin
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
| | - Joel K Annor-Gyamfi
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
| | - Richard A Bunce
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA.
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37
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Feng C, Li Y, Sheng X, Pan L, Liu Q. A Ritter-Type Route to N-Benzylamides by Multicomponent Reaction Based on p-(Trifluoromethyl)-p-quinols. Org Lett 2018; 20:6449-6452. [DOI: 10.1021/acs.orglett.8b02762] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chengjie Feng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yifei Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xinyao Sheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ling Pan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qun Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
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38
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Palladium-catalyzed four-component carbonylative synthesis of 2,3-disubstituted quinazolin-4(3H)-ones: Convenient methaqualone preparation. J Catal 2018. [DOI: 10.1016/j.jcat.2018.06.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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39
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Synthesis of quinazolinones and benzazoles utilizing recyclable sulfated metal-organic framework-808 catalyst in glycerol as green solvent. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.03.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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40
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Saikia UP, Borah G, Pahari P. Lewis-Acid-Catalysed Activation of Nitriles: A Microwave-Assisted Solvent-Free Synthesis of 2,4-Disubstituted Quinazolines and 1,3-Diazaspiro[5.5]undec-1-enes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701585] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ujwal Pratim Saikia
- Chemical Science and Technology Division; CSIR-North East Institute of Science and Technology; 785006 Jorhat- Assam India
| | - Geetika Borah
- Department of Chemistry; Dibrugarh University; 786004 Dibrugarh- Assam India
| | - Pallab Pahari
- Chemical Science and Technology Division; CSIR-North East Institute of Science and Technology; 785006 Jorhat- Assam India
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41
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Lee JB, Kang ME, Kim J, Lee CY, Kee JM, Myung K, Park JU, Hong SY. Direct diversification of unmasked quinazolin-4(3H)-ones through orthogonal reactivity modulation. Chem Commun (Camb) 2018; 53:10394-10397. [PMID: 28876024 DOI: 10.1039/c7cc05794f] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Here we report a set of direct functionalization methods of unmasked 2-phenylquinazolin-4(3H)-ones, a privileged alkaloid core, without the installation/removal event of protecting groups or exogenous coordinating moieties. Divergent pathways were modulated with transition-metal catalysts by suppressing competitive reactivities, leading to N-arylation, annulative π-extension, or C-H fluorination.
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Affiliation(s)
- Jae Bin Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Mi Eun Kang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Joohee Kim
- School of Materials Science and Engineering, UNIST, 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Chang Young Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Jung-Min Kee
- Department of Chemistry, UNIST, 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Kyungjae Myung
- Center for Genomic Integrity (CGI), Institute for Basic Science (IBS), School of Life Science, UNIST, 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Jang-Ung Park
- School of Materials Science and Engineering, UNIST, 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Sung You Hong
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. and Center for Genomic Integrity (CGI), Institute for Basic Science (IBS), School of Life Science, UNIST, 50 UNIST-gil, Ulsan 44919, Republic of Korea
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42
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Abe T, Shimizu H, Takada S, Tanaka T, Yoshikawa M, Yamada K. Double “Open and Shut” Transformation of γ-Carbolines Triggered by Ammonium Salts: One-Pot Synthesis of Multiheterocyclic Compounds. Org Lett 2018; 20:1589-1592. [DOI: 10.1021/acs.orglett.8b00332] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Haruka Shimizu
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Shiori Takada
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Takahiro Tanaka
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Mai Yoshikawa
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Koji Yamada
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
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43
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Abe T, Yamada K. Dehydrative Mannich-Type Reaction for the Synthesis of Azepinobisindole Alkaloid Iheyamine A. Org Lett 2018; 20:1469-1472. [DOI: 10.1021/acs.orglett.8b00330] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical
Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Koji Yamada
- Faculty of Pharmaceutical
Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
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44
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Yu L, Chen X, Liu D, Hu L, Yu Y, Huang H, Tan Z, Gui Q. Direct Synthesis of Primary Anilines via Nickel-mediated C(sp
2
)-H Aminations. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701371] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Lin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Xiang Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Da Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Liang Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Yongqi Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Hang Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Ze Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Qingwen Gui
- College of Science; Hunan Agricultural University; Changsha 410128 People's Republic of China
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45
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Abe T, Terasaki M. Synthesis of Phaitanthrin E and Tryptanthrin through Amination/Cyclization Cascade. Helv Chim Acta 2018. [DOI: 10.1002/hlca.201700284] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences; Health Sciences University of Hokkaido; Ishikari-Tobetsu Hokkaido 061-0293, Japan
| | - Masaru Terasaki
- Faculty of Pharmaceutical Sciences; Health Sciences University of Hokkaido; Ishikari-Tobetsu Hokkaido 061-0293, Japan
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46
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47
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Abe T, Suzuki T, Anada M, Matsunaga S, Yamada K. 2-Hydroxyindoline-3-triethylammonium Bromide: A Reagent for Formal C3-Electrophilic Reactions of Indoles. Org Lett 2017; 19:4275-4278. [DOI: 10.1021/acs.orglett.7b01940] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Takumi Abe
- Faculty
of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Takuro Suzuki
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 0600812, Japan
| | - Masahiro Anada
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 0600812, Japan
| | - Shigeki Matsunaga
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 0600812, Japan
| | - Koji Yamada
- Faculty
of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
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48
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Abe T, Takahashi Y, Matsubara Y, Yamada K. An Ullmann N-arylation/2-amidation cascade by self-relay copper catalysis: one-pot synthesis of indolo[1,2-a]quinazolinones. Org Chem Front 2017. [DOI: 10.1039/c7qo00549k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a self-relay copper(i)-catalyzed Ullmann N-arylation/2-amidation cascade to form functionalized indolo[1,2-a]quinazolinones in one-pot from easily available indoles with 2-bromobenzamides.
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Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-tobetsu
- Japan
| | - Yuka Takahashi
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-tobetsu
- Japan
| | - Yuki Matsubara
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-tobetsu
- Japan
| | - Koji Yamada
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-tobetsu
- Japan
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49
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Liu X, Qian P, Wang Y, Pan Y. Metal-free sequential decarbonylative annulation of N-cyanamides for the construction of 2,3-dihydropyrrolo[2,1-b]quinazolin-9(1H)-ones. Org Chem Front 2017. [DOI: 10.1039/c7qo00677b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A convenient metal-free sequential decarbonylative annulation of unactivated alkenes for the construction of quinazolinones and dihydroisoquinolinones has been developed.
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Affiliation(s)
- Xueke Liu
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Ping Qian
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Yi Wang
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Yi Pan
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- China
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