1
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Liu J, Liu DY, Yang Q, Zeng YF, Wang XL, Wang PF, Ruan YJ, Wen MM, Zhang SS, Du LD, Liu XG. Cp*Rh(III)-catalyzed regioselective cyclization of aromatic amides with allenes. Chem Commun (Camb) 2024; 60:598-601. [PMID: 38099839 DOI: 10.1039/d3cc05342c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A new Cp*Rh(III)-catalyzed regioselective cyclization reaction of aromatic amides with allenes is reported. The use of allenyl derivatives bearing a directing-group assistant as a reaction promoter was the key to the success of this protocol. In this catalytic system, N-(pivaloyloxy)benzamide substrates react with allenes via Rh-σ-alkenyl intermediates, while N-(pivaloyloxy) indol substrates react via Rh-π-allyl intermediates. These reactions were characterized by mild reaction conditions, a broad substrate scope, and high functional-group compatibility to yield several high-value isoquinolinone and pyrimido[1,6-a]indol-1(2H)-one skeleton-containing compounds. The synthetic applications and primary mechanisms were also investigated.
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Affiliation(s)
- Jing Liu
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Deng-Yin Liu
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Qian Yang
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Yao-Fu Zeng
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421000, P. R. China.
| | - Xiao-Li Wang
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Peng-Fei Wang
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Yu-Jun Ruan
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Miao-Miao Wen
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Shang-Shi Zhang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Li-da Du
- Institute of Molecular Medicine & Innovative Pharmaceutics, Qingdao University, Qingdao 266071, China.
| | - Xu-Ge Liu
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
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2
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Singh S, Parammal A, Kumar M, X JS, Subramanian P. Iso-Pentadienyl Carbonate as a Five Carbon Synthon in Manganese(I)-Catalyzed Selective Linear 1,3-Dienylation. Chemistry 2023; 29:e202301632. [PMID: 37518839 DOI: 10.1002/chem.202301632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/12/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
Selective linear 1,3-dienylations are essential transformations, and numerous synthetic efforts have been documented. However, a general method enabling access to electron-rich, -poor, and biologically relevant dienyl molecules is in high demand. Hence, we report a straightforward method of manganese(I)-catalyzed C-H dienylation of arenes by using iso-pentadienyl carbonate as a five carbon synthon. This is a highly unprecedented report for selective linear 1,3-dienylation using manganese C-H activation catalysis. Our method facilitates the synthesis of varieties of dienes, including those suitable for normal or inverse electron demand Diels-Alder reactions, dienyl glycoconjugates, and unnatural amino acids. Extensive mechanistic studies, including isolation of C-H activated organo-manganese complex and isotopic analyses, have supported the proposed mechanism of this dienylation. The synthetic applicability of this method eased to deliver a 6/6/5-fused tricyclic nagilactone scaffold.
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Affiliation(s)
- Shubham Singh
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| | - Athira Parammal
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| | - Manoj Kumar
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| | - Joe Sam X
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| | - Parthasarathi Subramanian
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
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3
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Singh A, Shukla RK, Volla CMR. Ru(II)-Catalyzed Regioselective Annulation of 2-Hydroxystyrenes with Allenyl Acetates via Vinylic C–H Activation. Org Lett 2022; 24:8936-8941. [DOI: 10.1021/acs.orglett.2c03192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Anurag Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rahul K. Shukla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Chandra M. R. Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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4
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Ma C, Li C, Bai J, Xiao J, Zhai Y, Guo Y, Ma S. Rhodium-Catalyzed Intermolecular Stereoselective Allylation of Indoles with Allenes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chaoyan Ma
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, People’s Republic of China
| | - Can Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Jiahui Bai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Junzhe Xiao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Yizhan Zhai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Yinlong Guo
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, People’s Republic of China
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai 200433, People’s Republic of China
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5
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Karan G, Sahu S, Maji MS. Synthesis of Indolyl‐1,3‐Dienes from β‐Sulphonyl Aldehydes through One‐Pot Sequential Brønsted Acid/ Base Catalysis. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ganesh Karan
- Indian Institute of Technology Kharagpur Chemistry Indian Institute of Technology KharagpurDepartment of Chemistry 721302 Kharagpur INDIA
| | - Samrat Sahu
- Indian Institute of Technology Kharagpur Chemistry Indian Institute of Technology KharagpurDepartment of Chemistry 721302 Kharagpur INDIA
| | - Modhu Sudan Maji
- Indian Institute of Technology Kharagpur Chemistry Paschim Midnapore 721302 Kharagpur INDIA
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6
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Vine LE, Schomaker JM. Pd-Catalyzed Heck-Type Reactions of Allenes for Stereoselective Syntheses of Substituted 1,3-Dienes. Chemistry 2022; 28:e202103507. [PMID: 34727393 PMCID: PMC8727505 DOI: 10.1002/chem.202103507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Indexed: 01/05/2023]
Abstract
A highly stereoselective Pd-catalyzed Heck-type reaction of allenes in which the stereochemistry of both olefins is set simultaneously was developed. The ligand CyJohnPhos was crucial to achieving stereoselectivity, while minimizing isomerization of the starting material through hydropalladation. The stereodetermining factors were proposed to be A1,3 strain between the catalyst and allene substituent, which influences the σ-π-σ equilibrium of the coupled allene intermediate, as well as eclipsing interactions of R groups in the β-hydride elimination. Good functional group tolerance and stereoselectivities for formation of the Z,E isomer were demonstrated. The methodology was further expanded to include the regioselective formation of 2,4-dienoates and 2,4-dienamides with a variety of substitution patterns, albeit in reduced stereoselectivities favoring the E,E isomer. A plausible mechanism is proposed to account for the observed selectivities and substituent effects.
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Affiliation(s)
- Logan E Vine
- Department of Chemistry, University of Wisconsin, Madison, 1101 University Ave, Madison, Wi 53706, USA
| | - Jennifer M Schomaker
- Department of Chemistry, University of Wisconsin, Madison, 1101 University Ave, Madison, Wi 53706, USA
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Wei Y, Xu H, Chen F, Gao H, Huang Y, Yi W, Zhou Z. Specific assembly of dihydrobenzofuran frameworks via Rh( iii)-catalysed C–H coupling of N-phenoxyacetamides with 2-alkenylphenols. NEW J CHEM 2022. [DOI: 10.1039/d2nj00175f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synergistic dual directing group-enabled and Rh(iii)-catalysed redox-neutral C–H functionalization/[3+2] annulation has been realized for the synthesis of dihydrobenzofurans.
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Affiliation(s)
- Yinhui Wei
- Department of Fundamental Medicine & Pharmaceutical Sciences, Bijie Medical College, Bijie, 551700, China
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Huiying Xu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Fangyuan Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Yugang Huang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Wei Yi
- Department of Fundamental Medicine & Pharmaceutical Sciences, Bijie Medical College, Bijie, 551700, China
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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8
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Zhang WD, Zou JY, Zhong Q, Li SS, Zhao J. Synergistic Pd/Cu-catalysed regio- and stereoselective borylation of allenylic carbonates. Chem Commun (Camb) 2021; 58:1037-1040. [PMID: 34951424 DOI: 10.1039/d1cc05854a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple Pd/Cu-catalyzed borylation of allenylic carbonates with B2Pin2 was developed using a cheap P(OEt)3 ligand. Under mild neutral conditions, 2-boryl 1,3-butadienes were obtained selectively in moderate to high yields. Furthermore, the use of different diboron reagents was also feasible in the reaction.
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Affiliation(s)
- Wei-Dong Zhang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Jia-Yu Zou
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Qin Zhong
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Shi-Sen Li
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Jian Zhao
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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9
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Wu M, Wang S, Wang Y, Gao H, Yi W, Zhou Z. TFA‐Prompted/Rh(III)‐Catalysed Chemoselective C
3
− or C
2
−H Functionalization of Indoles with Methylenecyclopropanes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Min Wu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Shengdong Wang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Yi Wang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Hui Gao
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Wei Yi
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Zhi Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
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