1
|
I2/PhI(OAc)2-assisted oxidative C-H amination protocols toward metal-free pragmatic synthesis of pyrrolo[2,3-b]indoles. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
2
|
Liu H, Wei L, Chen Z. One-pot multi-step cascade protocols toward β-indolyl sulfoximidoyl amides via intermolecular trapping of an α-indolylpalladium complex by CO. Org Biomol Chem 2021; 19:3359-3369. [PMID: 33899876 DOI: 10.1039/d1ob00128k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various β-indolyl sulfoximidoyl amides were efficiently prepared from ortho-iodoanilines, propargyl bromides, 1 atm of CO, and substituted NH-sulfoximines, through a palladium-catalyzed indole annulation/carbonyl insertion/C-N bond formation cascade. Mostly good to high yields of the products were obtained through this multi-step, one-pot reaction protocol under very gentle reaction conditions. The obtained β-indolyl sulfoximidoyl amides could be converted into biologically interesting sulfoximine analogues that contain a tryptamine moiety.
Collapse
Affiliation(s)
- Huahua Liu
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and Jiangxi Key Laboratory of Green Chemistry, College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China.
| | - Li Wei
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and Jiangxi Key Laboratory of Green Chemistry, College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China.
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and Jiangxi Key Laboratory of Green Chemistry, College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China.
| |
Collapse
|
3
|
Wu W, Chen Z. Synthesis of 2,3-diiminoindolines and 2,3-diaminoindoles via copper-catalyzed donor-acceptor metallo carbenoid formation and hydrogenation reactions. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152314] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
4
|
Chen X, Qiu G, Liu R, Chen D, Chen Z. Divergent oriented synthesis (DOS) of aza-heterocyclic amides through palladium-catalyzed ketenimination of 2-iodo-N-(propa-1,2-dien-1-yl)anilines. Org Chem Front 2020. [DOI: 10.1039/c9qo01451a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A palladium-catalyzed tandem reaction of N-(2-iodophenyl)-4-methyl-N-(propa-1,2-dien-1-yl)benzenesulfonamide with isocyanide is described to divergently produce aza-heterocyclic amides.
Collapse
Affiliation(s)
- Xiaoyan Chen
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Guanyinsheng Qiu
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Renzhi Liu
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Dianpeng Chen
- Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
| |
Collapse
|
5
|
Miao J, Sang X, Wang Y, Deng S, Hao W. Synthesis of thiazolo[2,3-b]quinazoline derivatives via base-promoted cascade bicyclization of o-alkenylphenyl isothiocyanates with propargylamines. Org Biomol Chem 2019; 17:6994-6997. [PMID: 31298677 DOI: 10.1039/c9ob01098j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient cascade bicyclization reaction of o-alkenylphenyl isothiocyanates with propargylamines has been developed, which affords a series of thiazolo[2,3-b]quinazolines in good to excellent yields by using K2CO3 as a base in MeCN at 80 °C. This method is transition-metal-free and operationally simple with broad functional group tolerance. Mechanistically, 6-exo-trig hydroamination followed by 5-exo-dig hydrothiolation was involved in this transformation.
Collapse
Affiliation(s)
- Jiankang Miao
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P.R. China.
| | - Xiaoyan Sang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P.R. China.
| | - Yi Wang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P.R. China.
| | - Shufeng Deng
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P.R. China.
| | - Wenyan Hao
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P.R. China.
| |
Collapse
|
6
|
Han C, Wu W, Chen Z, Pu S. Rhodium‐Catalyzed [5+1]‐Cycloaddition Reactions to Spiro‐Benzo[
e
][1,3]Oxazineindoline Imines. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900274] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Cuifen Han
- Key Laboratory of Functional Small Organic Molecules Ministry of Education, and College of Chemistry & Chemical EngineeringJiangxi Normal University 99 Ziyang Road, Nanchang Jiangxi 330022 P. R. China
| | - Wenjin Wu
- Key Laboratory of Functional Small Organic Molecules Ministry of Education, and College of Chemistry & Chemical EngineeringJiangxi Normal University 99 Ziyang Road, Nanchang Jiangxi 330022 P. R. China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules Ministry of Education, and College of Chemistry & Chemical EngineeringJiangxi Normal University 99 Ziyang Road, Nanchang Jiangxi 330022 P. R. China
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science and Technology Normal University 605 Fenglin Road, Nanchang Jiangxi 330013 P. R. China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science and Technology Normal University 605 Fenglin Road, Nanchang Jiangxi 330013 P. R. China
| |
Collapse
|
7
|
Vila C, Slack S, Blay G, Muñoz MC, Pedro JR. Regio‐ and Stereoselective Synthesis of 3‐Pyrazolylidene‐2‐oxindole Compounds by Nucleophilic Vinylic Substitution of (
E
)‐3‐(Nitromethylene)indolin‐2‐one. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Sophie Slack
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Carmen Muñoz
- Departament de Física AplicadaUniversitat Politècnica de València Camino de Vera s/n 46022 València Spain
| | - José R. Pedro
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| |
Collapse
|
8
|
Chen Z, Han C, Fan C, Liu G, Pu S. Copper-Catalyzed Diversity-Oriented Synthesis (DOS) of 4-Amino-2 H-chromen-2-imines: Application of Kemp Elimination toward O-Heterocycles. ACS OMEGA 2018; 3:8160-8168. [PMID: 31458953 PMCID: PMC6644361 DOI: 10.1021/acsomega.8b01179] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/05/2018] [Indexed: 06/10/2023]
Abstract
We report herein a copper-catalyzed sequential multicomponent reaction of benzo[d]isoxazoles with terminal alkynes and sulfonyl azides, which produced divergent 4-amino-2H-chromen-2-imines with excellent chemical selectivity. The reaction tolerated a broad range of functional groups, and released only N2 as the sole byproduct. The sulfonyl imino group could be removed to give biologically active free 4-amino-2H-chromenone in good yield.
Collapse
Affiliation(s)
- Zhiyuan Chen
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
- Key
Laboratory of Functional Small Organic Molecules, Ministry of Education,
and College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P. R. China
| | - Cuifen Han
- Key
Laboratory of Functional Small Organic Molecules, Ministry of Education,
and College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P. R. China
| | - Congbin Fan
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
| | - Gang Liu
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
| | - Shouzhi Pu
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
| |
Collapse
|
9
|
Tan J, Tong Y, Chen Z. Alkali-Metal Promoted Chemo- and Regioselective Cycloisomerization Reactions to (Z
)-3-Alkylideneisoindolin-1-ones: Unusual Positive Role of H2
O. ChemistrySelect 2018. [DOI: 10.1002/slct.201800666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jie Tan
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education; College of Chemistry & Chemical Engineering; Jiangxi Normal University; 99 Ziyang Road Nanchang, Jiangxi 330022 P. R. China
| | - Yao Tong
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education; College of Chemistry & Chemical Engineering; Jiangxi Normal University; 99 Ziyang Road Nanchang, Jiangxi 330022 P. R. China
- College of Tuition-free Normal Students; Jiangxi Normal University; 99 Ziyang Road Nanchang, Jiangxi 330022 P. R. China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education; College of Chemistry & Chemical Engineering; Jiangxi Normal University; 99 Ziyang Road Nanchang, Jiangxi 330022 P. R. China
| |
Collapse
|