1
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Das S, Datta T, Sk MA, Roy B, Nandi RK. Isoxazole group directed Rh(III)-catalyzed alkynylation using TIPS-EBX. Org Biomol Chem 2024; 22:6922-6927. [PMID: 38978484 DOI: 10.1039/d4ob00797b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
A highly effective isoxazole directed ortho C-H alkynylation has been developed. Rhodium(III) catalyzed direct di-(and/or mono) alkynylation using a hypervalent iodine reagent (TIPS-EBX) is reported. The reaction proceeds with a wide substrate scope under benign conditions. Preliminary mechanistic studies support this chelation assisted C-H alkynylation.
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Affiliation(s)
- Sukanya Das
- Department of Chemistry, Jadavpur University, 188, Raja Subodh Chandra Mallick Rd, Jadavpur, Kolkata, West Bengal 700032, India.
| | - Tanmoy Datta
- Department of Chemistry, Kalyani University, Block C, Nadia, Kalyani, West Bengal 741235, India
| | - Md Abbasuddin Sk
- Department of Chemistry, Jadavpur University, 188, Raja Subodh Chandra Mallick Rd, Jadavpur, Kolkata, West Bengal 700032, India.
| | - Brindaban Roy
- Department of Chemistry, Kalyani University, Block C, Nadia, Kalyani, West Bengal 741235, India
| | - Raj K Nandi
- Department of Chemistry, Jadavpur University, 188, Raja Subodh Chandra Mallick Rd, Jadavpur, Kolkata, West Bengal 700032, India.
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2
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Zheng DS, Zhao F, Gu Q, You SL. Rh(III)-catalyzed atroposelective C-H alkynylation of 1-aryl isoquinolines with hypervalent iodine-alkyne reagents. Chem Commun (Camb) 2024; 60:6753-6756. [PMID: 38863330 DOI: 10.1039/d4cc01785d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
An efficient Rh(III)-catalyzed enantioselective C-H alkynylation of isoquinolines is disclosed. The C-H alkynylation of 1-aryl isoquinolines with hypervalent iodine-alkyne reagents proceeded in DMA at room temperature in the presence of 2.5 mol% chiral SCpRh(III) complex along with 20 mol% AgSbF6, providing axially chiral alkynylated 1-aryl isoquinolines in excellent yields (up to 93%) and enantioselectivity (up to 95% ee). The diverse transformations of the product further enhance the potential utility of this reaction.
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Affiliation(s)
- Dong-Song Zheng
- Chang-Kung Chuang Institute, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
| | - Fangnuo Zhao
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
| | - Qing Gu
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
| | - Shu-Li You
- Chang-Kung Chuang Institute, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
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3
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Dutta U, Prakash G, Devi K, Borah K, Zhang X, Maiti D. Directing group assisted para-selective C-H alkynylation of unbiased arenes enabled by rhodium catalysis. Chem Sci 2023; 14:11381-11388. [PMID: 37886091 PMCID: PMC10599460 DOI: 10.1039/d3sc03528j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023] Open
Abstract
Regioselective C-H alkynylation of arenes via C-H activation is challenging yet a highly desirable transformation. In this regard, directing group assisted C(sp2)-H alkynylation of arenes offers a unique opportunity to ensure precise regioselectivity. While the existing methods are mainly centered around ortho-C-H alkynylation and a few for meta-C-H alkynylation, the DG-assisted para-selective C-H alkynylation is yet to be reported. Herein we disclose the first report on Rh-catalyzed para-C-H alkynylation of sterically and electronically unbiased arenes. The para-selectivity is achieved with the assistance of a cyano-based directing template and the selectivity remained unaltered irrespective of the steric and electronic influence of the substituents. The post-synthetic modification of synthesized para-alkynylated arenes is also demonstrated. The mechanistic intricacies of the developed protocol are elucidated through experimental and computational studies.
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Affiliation(s)
- Uttam Dutta
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Gaurav Prakash
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Kirti Devi
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Kongkona Borah
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Xinglong Zhang
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR) Singapore Singapore
| | - Debabrata Maiti
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
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4
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Baghel AS, Pratap R, Kumar A. Ru(II)-Catalyzed Weakly Coordinating Carbonyl-Assisted Dialkynylation of (Hetero)Aryl Ketones. J Org Chem 2023. [PMID: 37307505 DOI: 10.1021/acs.joc.3c00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Functionalized aryl(heteroaryl) ketones are present in many natural products as key structural components and serve as basic synthetic building blocks for various organic transformation reactions. Therefore, the development of an effective and sustainable route for making these classes of compounds remains challenging yet highly desirable. Herein, we report a simple and efficient catalytic system for dialkynylation of aromatic/heteroaromatic ketones via a double C-H bond activation in the presence of less expensive ruthenium(II)-salt as a catalyst using the weakly and native carbonyl group as the desired directing group. The developed protocol is highly compatible, tolerant, and sustainable toward various functional groups. The synthetic utility of the developed protocol has been demonstrated through the scale-up synthesis and functional group transformation. Control experiments support the involvement of the base-assisted internal electrophilic substitution (BIES) reaction pathway.
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Affiliation(s)
- Akanksha Singh Baghel
- Department of Chemistry, Indian Institute of Technology Patna, Patna 801106, Bihar, India
| | - Ramendra Pratap
- Department of Chemistry, Delhi University, Delhi 110007, India
| | - Amit Kumar
- Department of Chemistry, Indian Institute of Technology Patna, Patna 801106, Bihar, India
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5
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Zhou J, Jiao T, Fu Q, Wang J, Lu J, Yang L, Wei J, Wei S, Cong X, Hao N. Catalytic C-H alkynylation of benzylamines and aldehydes with aldimine-directing groups generated in situ. Chem Commun (Camb) 2023; 59:6355-6358. [PMID: 37139669 DOI: 10.1039/d3cc01414b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Iridium-catalysed regioselective C-H alkynylation of unprotected primary benzylamines and aliphatic aldehydes has been achieved using in situ-installed aldimine directing groups. This protocol provides a straightforward route for the synthesis of the alkynylated primary benzylamine and aliphatic aldehyde derivatives, featuring good substrate compatibility and high regioselectivity.
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Affiliation(s)
- Jiao Zhou
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Tenggang Jiao
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Qiang Fu
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Jun Wang
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Ji Lu
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Lin Yang
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Jun Wei
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Siping Wei
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Xuefeng Cong
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin, 300072, China.
| | - Na Hao
- Green Pharmaceutical Technology Key Laboratory of Luzhou, Central Nervous System Drug Key Laboratory of Sichuan Province, Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
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6
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Liu Y, Han C, Shi H, Mackenroth AV, Zhang L, Rudolph M, Rominger F, Hashmi ASK. Gold-Catalyzed Regio- and Stereoselective α-Acyloxy-β-Alkynylation of Ynol Ethers. J Org Chem 2023. [PMID: 36799936 DOI: 10.1021/acs.joc.2c02597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Enol esters and conjugated enynes are valuable structural motifs for synthetic chemistry and material sciences. Herein, the synthesis of tetra-substituted enol ester 2-iodobenzoate derivatives was achieved in good yields at room temperature through a gold-catalyzed acyloxyalkynylation of sensitive ynol ethers with ethynylbenziodoxolones (EBXs), the latter acting as bifunctional reactants. The conversion is highly regioselective with a broad substrate scope. Mechanistically, an Au(III) species is the key intermediate of an Au(I)/Au(III) redox cycle. The reaction is synthetically useful and can easily be scaled up to gram scale.
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Affiliation(s)
- Yaowen Liu
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Chunyu Han
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hongwei Shi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Alexandra V Mackenroth
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Linghua Zhang
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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7
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Aryl-, Akynyl-, and Alkenylbenziodoxoles: Synthesis and Synthetic Applications. Molecules 2023; 28:molecules28052136. [PMID: 36903382 PMCID: PMC10004369 DOI: 10.3390/molecules28052136] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/02/2023] Open
Abstract
Hypervalent iodine reagents are in high current demand due to their exceptional reactivity in oxidative transformations, as well as in diverse umpolung functionalization reactions. Cyclic hypervalent iodine compounds, known under the general name of benziodoxoles, possess improved thermal stability and synthetic versatility in comparison with their acyclic analogs. Aryl-, alkenyl-, and alkynylbenziodoxoles have recently received wide synthetic applications as efficient reagents for direct arylation, alkenylation, and alkynylation under mild reaction conditions, including transition metal-free conditions as well as photoredox and transition metal catalysis. Using these reagents, a plethora of valuable, hard-to-reach, and structurally diverse complex products can be synthesized by convenient procedures. The review covers the main aspects of the chemistry of benziodoxole-based aryl-, alkynyl-, and alkenyl- transfer reagents, including preparation and synthetic applications.
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8
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Kong L, Zou Y, Li XX, Zhang XP, Li X. Rhodium-catalyzed enantioselective C-H alkynylation of sulfoxides in diverse patterns: desymmetrization, kinetic resolution, and parallel kinetic resolution. Chem Sci 2023; 14:317-322. [PMID: 36687346 PMCID: PMC9811495 DOI: 10.1039/d2sc05310a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 12/01/2022] [Indexed: 12/05/2022] Open
Abstract
Rhodium-catalyzed enantioselective C-H alkynylation of achiral and racemic sulfoxides is disclosed with alkynyl bromide as the alkynylating reagent. A wide range of chiral sulfoxides have been constructed in good yield and excellent enantioselectivity (up to 99% ee, s-factor up to > 500) via desymmetrization, kinetic resolution, and parallel kinetic resolution under mild reaction conditions. The high enantioselectivity was rendered by the chiral cyclopentadienyl rhodium(iii) catalyst paired with a chiral carboxamide additive. The interactions between the chiral catalyst, the sulfoxide, and the chiral carboxylic amide during the C-H bond cleavage offer the asymmetric induction, which is validated by DFT calculations. The chiral carboxamide functions as a base to promote C-H activation and offers an additional chiral environment during the C-H cleavage.
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Affiliation(s)
- Lingheng Kong
- School of Chemistry and Chemical Engineering, Shaanxi Normal UniversityXi'an 710062China
| | - Yun Zou
- School of Chemistry and Chemical Engineering, Shaanxi Normal UniversityXi'an 710062China
| | - Xiao-Xi Li
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong UniversityQingdao 266237China
| | - Xue-Peng Zhang
- School of Chemistry and Chemical Engineering, Shaanxi Normal UniversityXi'an 710062China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal UniversityXi'an 710062China,Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong UniversityQingdao 266237China
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9
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Baghel AS, Kumar A. Ru(II)-catalyzed external auxiliary-free primary amide-directed inverse Sonogashira reaction on (hetero)arylamides. Chem Commun (Camb) 2022; 58:11304-11307. [PMID: 36124904 DOI: 10.1039/d2cc03929j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report ruthenium(II)-catalyzed weakly coordinating primary amide-assisted ortho-di-alkynylation of (hetero)arylamides via double C-H bond activation in the presence of bromo-alkynes as coupling partners. The attractive features of the developed strategy lie in the usage of an inexpensive ruthenium(II)-salt, external auxiliary-free directing group and simple reaction conditions, along with a broad substrate scope, high reaction yields and scale-up synthesis.
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Affiliation(s)
- Akanksha Singh Baghel
- Department of Chemistry, Indian Institute of Technology Patna, Bihta 801106, Bihar, India.
| | - Amit Kumar
- Department of Chemistry, Indian Institute of Technology Patna, Bihta 801106, Bihar, India.
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10
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Saha A, Ghosh A, Guin S, Panda S, Mal DK, Majumdar A, Akita M, Maiti D. Substrate‐Rhodium Cooperativity in Photoinduced
ortho
‐Alkynylation of Arenes. Angew Chem Int Ed Engl 2022; 61:e202210492. [DOI: 10.1002/anie.202210492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Argha Saha
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Animesh Ghosh
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Srimanta Guin
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Sanjib Panda
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Dibya Kanti Mal
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Abhirup Majumdar
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Munetaka Akita
- Tokyo Tech World Research Hub Initiative (WRHI) Laboratory for Chemistry and Life Science Tokyo Institute of Technology Tokyo Japan
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
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11
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Saha A, Ghosh A, Guin S, Panda S, Mal DK, Majumdar A, Akita M, Maiti D. Substrate‐Rhodium Cooperativity in Photoinduced ortho‐Alkynylation of Arenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Argha Saha
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Animesh Ghosh
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Srimanta Guin
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Sanjib Panda
- Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Dibya Kanti Mal
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Abhirup Majumdar
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Munetaka Akita
- Tokyo Institute of Technology Chemistry and Life Science JAPAN
| | - Debabrata Maiti
- Indian Institute of Technology-Bombay Department of Chemistry Powai 400076 Mumbai INDIA
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12
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Li J, Zhou C, Liang H, Guo XQ, Chen LM, Kang TR. Direct One‐Pot Construction of Diaryl Thioethers and 1,3‐Diynes through a Copper(I)‐Catalyzed Reaction of λ3‐Iodanes with Thiophenols. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jun Li
- Chengdu University School of Pharmacy CHINA
| | - Chuang Zhou
- Chengdu University School of Food and Biological Engineering CHINA
| | - Hong Liang
- Chengdu University School of Pharmacy CHINA
| | | | - Lian-Mei Chen
- Chengdu University School of Food and Biological Engineering CHINA
| | - Tai-Ran Kang
- Chengdu University School of Food and Biological Engineering No 1, SHIDA ROAD 610106 Chengdu CHINA
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13
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Sasmal S, Prakash G, Dutta U, Laskar R, Lahiri GK, Maiti D. Directing group assisted rhodium catalyzed meta-C-H alkynylation of arenes. Chem Sci 2022; 13:5616-5621. [PMID: 35694332 PMCID: PMC9116288 DOI: 10.1039/d2sc00982j] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/08/2022] [Indexed: 11/21/2022] Open
Abstract
Site-selective C-H alkynylation of arenes to produce aryl alkynes is a highly desirable transformation due to the prevalence of aryl alkynes in various natural products, drug molecules and in materials. To ensure site-selective C-H functionalization, directing group (DG) assisted C-H activation has been evolved as a useful synthetic tool. In contrast to DG-assisted ortho-C-H activation, distal meta-C-H activation is highly challenging and has attracted significant attention in recent years. However, developments are majorly focused on Pd-based catalytic systems. In order to diversify the scope of distal meta-C-H functionalization, herein we disclosed the first Rh(i) catalyzed meta-C-H alkynylation protocol through the inverse Sonogashira coupling reaction. The protocol is compatible with various substrate classes which include phenylacetic acids, hydrocinnamic acids, 2-phenyl benzoic acids, 2-phenyl phenols, benzyl sulfonates and ether-based scaffolds. The post-synthetic modification of meta-alkynylated arenes is also demonstrated through DG-removal as well as functional group interconversion.
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Affiliation(s)
- Sheuli Sasmal
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Gaurav Prakash
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Uttam Dutta
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Ranjini Laskar
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | | | - Debabrata Maiti
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
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14
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Ma L, Zhang X, Tuo Y, Zheng QZ. Cp*Rh(III)-Catalyzed Regioselective C(sp 2)-H Mono- and Dialkynylation of Thioamides by Sulfur Coordination. J Org Chem 2022; 87:3691-3700. [PMID: 35138097 DOI: 10.1021/acs.joc.1c02622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient Cp*Rh(III)-catalyzed regioselective C(sp2)-H mono- and dialkynylation of thioamides was described. This reaction was performed under mild conditions in high yields (up to 98%) with a broad substrate scope. Significantly, the versatility of this method was further demonstrated by controlled mono- and dialkynylation. Application of this protocol in the late stage functionalization of two drug molecules (Adapalene and Amoxapine) was also demonstrated.
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Affiliation(s)
- Lin Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Xiaohui Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Yanyan Tuo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Qing-Zhong Zheng
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.,State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191, China
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15
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Guo LY, Li Q, liu Y, Li L, Ni Y, Li Y, Pan F. Palladium‐Catalyzed Alkynylation of Alkenes via C‐H Activation for the Preparation of Conjugated 1,3‐Enynes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101365] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Qing Li
- Sichuan Normal University CHINA
| | | | - Lin Li
- Sichuan Normal University CHINA
| | | | - Yang Li
- Sichuan Normal University CHINA
| | - Fei Pan
- Sichuan Normal University CHINA
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16
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Zuo Z, Studer A. 1,3-Oxyalkynylation of Aryl Cyclopropanes with Ethylnylbenziodoxolones Using Photoredox Catalysis. Org Lett 2022; 24:949-954. [PMID: 35023750 DOI: 10.1021/acs.orglett.1c04319] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Alkynes and cyclopropanes are vital motifs in chemistry. Herein, a photoredox catalyzed 1,3-oxyalkynylation of aryl cyclopropanes with ethylnylbenziodoxolones (EBXs) in an atom-economic fashion is described. This cascade comprises single-electron oxidation of the aryl cyclopropane and nucleophilic ring opening followed by radical alkynylation at the benzylic position. The EBX compounds act as bifunctional reagents providing the nucleophilic acid as well as the alkynyl entity. The introduced method features mild conditions and wide substrate scope.
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Affiliation(s)
- Zhijun Zuo
- Organisch-Chemisches Institut, Westfalische Wilhelms-Universität, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfalische Wilhelms-Universität, 48149 Münster, Germany
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17
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Robichon M, Branquet D, Uziel J, Lubin‐Germain N, Ferry A. Directed Nickel‐Catalyzed
pseudo
‐Anomeric C−H Alkynylation of Glycals as an Approach towards
C
‐Glycoconjugate Synthesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Morgane Robichon
- CY Cergy Paris University BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Paris-Saclay University BioCIS, CNRS 5 rue J.-B. Clément 92296 Châtenay-Malabry cedex France
| | - David Branquet
- CY Cergy Paris University BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Paris-Saclay University BioCIS, CNRS 5 rue J.-B. Clément 92296 Châtenay-Malabry cedex France
| | - Jacques Uziel
- CY Cergy Paris University BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Paris-Saclay University BioCIS, CNRS 5 rue J.-B. Clément 92296 Châtenay-Malabry cedex France
| | - Nadège Lubin‐Germain
- CY Cergy Paris University BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Paris-Saclay University BioCIS, CNRS 5 rue J.-B. Clément 92296 Châtenay-Malabry cedex France
| | - Angélique Ferry
- CY Cergy Paris University BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Paris-Saclay University BioCIS, CNRS 5 rue J.-B. Clément 92296 Châtenay-Malabry cedex France
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18
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Tan E, Montesinos-Magraner M, García-Morales C, Mayans JG, Echavarren AM. Rhodium-catalysed ortho-alkynylation of nitroarenes. Chem Sci 2021; 12:14731-14739. [PMID: 34820088 PMCID: PMC8597868 DOI: 10.1039/d1sc04527j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/11/2021] [Indexed: 12/29/2022] Open
Abstract
The ortho-alkynylation of nitro-(hetero)arenes takes place in the presence of a Rh(iii) catalyst to deliver a wide variety of alkynylated nitroarenes regioselectively. These interesting products could be further derivatized by selective reduction of the nitro group or palladium-catalysed couplings. Experimental and computational mechanistic studies demonstrate that the reaction proceeds via a turnover-limiting electrophilic C-H metalation ortho to the strongly electron-withdrawing nitro group.
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Affiliation(s)
- Eric Tan
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
| | - Marc Montesinos-Magraner
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
| | - Cristina García-Morales
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
| | - Joan Guillem Mayans
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
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19
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Khorsandi Z, Metkazini SFM, Heydari A, Varma RS. Visible light-driven direct synthesis of ketones from aldehydes via C H bond activation using NiCu nanoparticles adorned on carbon nano onions. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Suseelan Sarala A, Bhowmick S, Carvalho RL, Al‐Thabaiti SA, Mokhtar M, Silva Júnior EN, Maiti D. Transition‐Metal‐Catalyzed Selective Alkynylation of C−H Bonds. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100992] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Anjana Suseelan Sarala
- Department of Chemistry Indian Institute of Technology Bombay Powai 400076 Mumbai India
- Department of Chemistry Saarland University 66123 Saarbrucken Germany
| | - Suman Bhowmick
- Department of Chemistry Indian Institute of Technology Bombay Powai 400076 Mumbai India
| | - Renato L. Carvalho
- Department of Chemistry Federal University of Minas Gerais 31270-901 Belo Horizonte MG Brazil
| | | | - Mohamed Mokhtar
- Chemistry Department Faculty of Science King Abdulaziz University 21589 Jeddah Saudi Arabia
| | | | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay Powai 400076 Mumbai India
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21
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Zhang J, Wang M, Wang H, Xu H, Chen J, Guo Z, Ma B, Ban SR, Dai HX. Construction of 2-alkynyl aza-spiro[4,5]indole scaffolds via sequential C-H activations for modular click chemistry libraries. Chem Commun (Camb) 2021; 57:8656-8659. [PMID: 34373875 DOI: 10.1039/d1cc02798k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Herein, we have developed a strategy of sequential C-H activations of indole to construct novel 2-alkynyl aza-spiro[4,5]indole scaffolds, which incorporated both alkyne and spiro-units into indole. Gram-scale synthesis and a one-pot, three-step synthesis demonstrated the utility of this protocol. Hybrid conjugates with an oseltamivir derivative further offered a powerful tool for the construction of a versatile spiroindole-containing library via click chemistry.
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Affiliation(s)
- Jun Zhang
- School of Pharmaceutical Science, Shanxi Medical University, 56 Xinjian South Road, Taiyuan 030001, China.
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22
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Mondal S, Pinkert T, Daniliuc CG, Glorius F. Regioselektive und redox‐neutrale Cp*Ir
III
‐katalysierte allylische C‐H‐Alkinylierung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shobhan Mondal
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Tobias Pinkert
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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23
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Sun X, Guo XQ, Chen LM, Kang TR. Synthesis, Characterization of Spirocyclic λ 3 -Iodanes and Their Application to Prepare 4,1-Benzoxazepine-2,5-diones and 1,3-Diynes. Chemistry 2021; 27:4312-4316. [PMID: 33326645 DOI: 10.1002/chem.202005124] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/15/2020] [Indexed: 11/10/2022]
Abstract
Herein, a [3+2] cycloaddition of aza-oxyallylic cations with ethynylbenziodoxolones for synthesis of new λ3 -iodanes containing spirocyclic 4-oxazolidinone has been developed. This cyclic λ3 -iodanes display stability in air and excellent solubility in organic solvent. Using them as substrate, both the 4,1-benzoxazepine-2,5-diones and symmetrical 1,3-diynes derivatives were afforded in high yield under copper(I)-catalyzed conditions.
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Affiliation(s)
- Xu Sun
- School of Food and Biological Engineering, Chengdu University, Chengdu City, 610106, P. R. China.,Collaborative Innovation Center of Tissue Repair Material of, Sichuan Province, College of Chemistry & Chemical Engineering, China West Normal University, Nanchong City, Sichuan, 637002, P. R. China
| | - Xiao-Qiang Guo
- School of Food and Biological Engineering, Chengdu University, Chengdu City, 610106, P. R. China
| | - Lian-Mei Chen
- School of Food and Biological Engineering, Chengdu University, Chengdu City, 610106, P. R. China
| | - Tai-Ran Kang
- School of Food and Biological Engineering, Chengdu University, Chengdu City, 610106, P. R. China.,Collaborative Innovation Center of Tissue Repair Material of, Sichuan Province, College of Chemistry & Chemical Engineering, China West Normal University, Nanchong City, Sichuan, 637002, P. R. China
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24
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Tan E, Nannini LJ, Stoica O, Echavarren AM. Rh-Catalyzed Ortho C–H Alkynylation of Aromatic Aldehydes. Org Lett 2021; 23:1263-1268. [DOI: 10.1021/acs.orglett.0c04243] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Eric Tan
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Leonardo J. Nannini
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Otilia Stoica
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
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25
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Mondal S, Pinkert T, Daniliuc CG, Glorius F. Regioselective and Redox‐Neutral Cp*Ir
III
‐Catalyzed Allylic C−H Alkynylation. Angew Chem Int Ed Engl 2021; 60:5688-5692. [DOI: 10.1002/anie.202015249] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/22/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Shobhan Mondal
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Tobias Pinkert
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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26
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Mei W, Kong Y, Yan G. Synthetic applications of α,α-difluoroarylacetic acids and salts via decarboxylative functionalization. Org Chem Front 2021. [DOI: 10.1039/d1qo00775k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
α,α-Difluoroarylacetic acids are stable, inexpensive and readily available building blocks which can be used to access various difluoromethylated aryl motifs via decarboxylative functionalization for the formation of carbon–carbon and carbon-heteroatom (F, O, S) bonds.
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Affiliation(s)
- Wenqiang Mei
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Yilin Kong
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Guobing Yan
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
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27
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Huang A, Han Y, Wu P, Gao Y, Huo Y, Chen Q, Li X. Ligand-accelerated site-selective Csp 2–H and Csp 3–H alkynylations of alcohols via Pd( ii) catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo01095f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A ligand accelerated site-selective C–H alkynylation, including secondary and tertiary Csp3–H alkynylation of weakly coordinated yet synthetically promising alcohols, via putative 6, 7 and 8-membered palladacycle intermediates, was developed.
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Affiliation(s)
- Aidong Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
| | - Yishen Han
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
| | - Peiqing Wu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
| | - Yang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
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28
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Zhou K, Mao Y, Wu F, Lou S, Xu D. Recent Advances in C—H Bond Functionalization under Mechanochemical Conditions. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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29
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Liu Z, Budiman YP, Tian Y, Friedrich A, Huang M, Westcott SA, Radius U, Marder TB. Copper-Catalyzed Oxidative Cross-Coupling of Electron-Deficient Polyfluorophenylboronate Esters with Terminal Alkynes. Chemistry 2020; 26:17267-17274. [PMID: 32697365 PMCID: PMC7821263 DOI: 10.1002/chem.202002888] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Indexed: 01/13/2023]
Abstract
We report herein a mild procedure for the copper-catalyzed oxidative cross-coupling of electron-deficient polyfluorophenylboronate esters with terminal alkynes. This method displays good functional group tolerance and broad substrate scope, generating cross-coupled alkynyl(fluoro)arene products in moderate to excellent yields. Thus, it represents a simple alternative to the conventional Sonogashira reaction.
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Affiliation(s)
- Zhiqiang Liu
- Institute of Inorganic Chemistry andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Yudha P. Budiman
- Institute of Inorganic Chemistry andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Department of ChemistryFaculty of Mathematics and Natural SciencesUniversitas Padjadjaran45363JatinangorIndonesia
| | - Ya‐Ming Tian
- Institute of Inorganic Chemistry andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Alexandra Friedrich
- Institute of Inorganic Chemistry andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Mingming Huang
- Institute of Inorganic Chemistry andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Stephen A. Westcott
- Department of Chemistry and BiochemistryMount Allison UniversitySackvilleNB E4L 1G8Canada
| | - Udo Radius
- Institute of Inorganic Chemistry andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Todd B. Marder
- Institute of Inorganic Chemistry andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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30
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Chandra D, Dhiman AK, Parmar D, Sharma U. Alkylation, alkenylation, and alkynylation of heterocyclic compounds through group 9 (Co, Rh, Ir) metal-catalyzed C-H activation. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2020. [DOI: 10.1080/01614940.2020.1839849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Devesh Chandra
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., India
| | - Ankit Kumar Dhiman
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., India
| | - Diksha Parmar
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., India
| | - Upendra Sharma
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., India
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31
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Zhu Y, Chen F, Cheng D, Chen Y, Zhao X, Wei W, Lu Y, Zhao J. Rhodium(III)-Catalyzed Alkenyl C-H Functionalization to Dienes and Allenes. Org Lett 2020; 22:8786-8790. [PMID: 33147030 DOI: 10.1021/acs.orglett.0c03126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An oxyacetamide-directed Rh(III)-catalyzed Z-type alkenyl C-H functionalization through a rare exo-rhodacyle intermediate is described, forming multisubstituted dienes and allenes. A variety of alkenes and propargylic carbonate coupling partners are suitable for this transformation with high regio- and stereoselectivity. The synthetic utility is demonstrated by the selective late-stage modification of the Z-type natural products as well as the synthesis of the unnatural β-amino acid.
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Affiliation(s)
- Yuelu Zhu
- State Key Laboratory of Coordination Chemistry, Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Feng Chen
- State Key Laboratory of Coordination Chemistry, Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Donghui Cheng
- School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Ying Chen
- State Key Laboratory of Coordination Chemistry, Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Xinyang Zhao
- State Key Laboratory of Coordination Chemistry, Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Wei Wei
- School of Life Sciences, Nanjing University, Nanjing 210093, China.,Shenzhen Research Institute, Nanjing University, Shenzhen 518000, China
| | - Yi Lu
- State Key Laboratory of Coordination Chemistry, Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jing Zhao
- State Key Laboratory of Coordination Chemistry, Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.,Shenzhen Research Institute, Nanjing University, Shenzhen 518000, China
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32
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Ye X, Wang C, Zhang S, Wei J, Shan C, Wojtas L, Xie Y, Shi X. Facilitating Ir-Catalyzed C-H Alkynylation with Electrochemistry: Anodic Oxidation-Induced Reductive Elimination. ACS Catal 2020; 10:11693-11699. [PMID: 38107025 PMCID: PMC10723742 DOI: 10.1021/acscatal.0c03207] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An electrochemical approach in promoting directed C-H alkynylation with terminal alkyne via iridium catalysis is reported. This work employed anodic oxidation of Ir(III) intermediate (characterized by X-ray crystallography) to promote reductive elimination, giving the desired coupling products in good yields (up to 95%) without the addition of any other external oxidants. This transformation is suitable for various directing groups with H2 as the only by-product, which warrants a high atom economy and practical oxidative C-C bond formation under mild conditions.
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Affiliation(s)
- Xiaohan Ye
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Chenhuan Wang
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Shuyao Zhang
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Jingwen Wei
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Chuan Shan
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Yan Xie
- College of Chemistry and Materials Engineering, Quzhou University, Quzhou 324000, P.R.China
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
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33
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Nguyen H, Daugulis O. N-Aminopyridinium Ylide-Directed, Copper-Promoted Chalcogenation of Arene C-H Bonds. J Org Chem 2020; 85:13069-13079. [PMID: 33000944 DOI: 10.1021/acs.joc.0c01757] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
N-Aminopyridinium ylide-directing group is employed for copper-promoted chalcogenation of sp2 C-H bonds with aryl and alkyl disulfides as well as diphenyl diselenide. Reactions proceed in hexafluoroisopropanol (HFIP) solvent at elevated temperatures and are promoted by copper(II) acetate.
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Affiliation(s)
- Hanh Nguyen
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Olafs Daugulis
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
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34
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Mahato SK, Chatani N. The Iridium(III)-Catalyzed Direct C(sp2)– and C(sp3)–H Alkynylation of 2-Acylimidazoles with Various Alkynyl Bromides: Understanding the Full Catalytic Cycle. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01189] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sanjit K. Mahato
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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35
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Cao YF, Li LJ, Liu M, Xu H, Dai HX. Palladium-Catalyzed, Copper(I)-Promoted Methoxycarbonylation of Arylboronic Acids with O-Methyl S-Aryl Thiocarbonates. J Org Chem 2020; 85:4475-4481. [PMID: 32077291 DOI: 10.1021/acs.joc.0c00198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Here, we report O-methyl S-aryl thiocarbonates as a versatile esterification reagent for palladium-catalyzed methoxycarbonylation of arylboronic acid in the presence of copper(I) thiophene-2-carboxylate (CuTC). The reaction condition is mild, and a variety of substituents including sensitive -Cl, -Br, and free -NH2 could be tolerated. Further applications in the late-stage esterification of some pharmaceutical drugs demonstrate the broad utility of this method.
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Affiliation(s)
- Ya-Fang Cao
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Ling-Jun Li
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Liu
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Xu
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China
| | - Hui-Xiong Dai
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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36
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Li X, Ouyang W, Nie J, Ji S, Chen Q, Huo Y. Recent Development on Cp*Ir(III)‐Catalyzed C−H Bond Functionalization. ChemCatChem 2020. [DOI: 10.1002/cctc.201902150] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Xianwei Li
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Wensen Ouyang
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Jianhong Nie
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Shaomin Ji
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Qian Chen
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
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37
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Rao MLN, Ramakrishna BS. Rh-Catalyzed aldehydic C–H alkynylation and annulation. Org Biomol Chem 2020; 18:1402-1411. [DOI: 10.1039/c9ob02670c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel Rh-catalyzed aldehydic C–H bond alkynylation and annulation for the in situ synthesis of chromones and aurones are described.
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Affiliation(s)
- Maddali L. N. Rao
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur
- India
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38
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Sun X, Zhao W, Li BJ. Iridium-catalyzed, ligand-controlled directed alkynylation and alkenylation of arenes with terminal alkynes. Chem Commun (Camb) 2020; 56:1298-1301. [DOI: 10.1039/c9cc08735d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We report iridium-catalyzed C–C formation between benzamides and terminal alkynes.
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Affiliation(s)
- Xin Sun
- Center of Basic Molecular Science (CBMS)
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Wei Zhao
- Center of Basic Molecular Science (CBMS)
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS)
- Department of Chemistry
- Tsinghua University
- Beijing
- China
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39
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Liu B, Ouyang W, Nie J, Gao Y, Feng K, Huo Y, Chen Q, Li X. Weak coordinated nitrogen functionality enabled regioselective C–H alkynylation via Pd(ii)/mono-N-protected amino acid catalysis. Chem Commun (Camb) 2020; 56:11255-11258. [DOI: 10.1039/d0cc04739b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
By using mono-N-protected amino acid (MPAA) ligand under Pd(ii) catalysis, regioselective C–H alkynylation of weak coordinated nitrogen functionalities was developed with great efficiency, proceeding via 5, 6 and 7-membered palladacycle intermediates.
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Affiliation(s)
- Bifu Liu
- School of Chemistry and Material Engineering
- Huizhou University
- Huizhou
- China
| | - Wensen Ouyang
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Jianhong Nie
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Yang Gao
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Kejun Feng
- School of Chemistry and Material Engineering
- Huizhou University
- Huizhou
- China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Qian Chen
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
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40
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Hari DP, Caramenti P, Schouwey L, Chang M, Nicolai S, Bachert D, Wright T, Orella C, Waser J. One-Pot Synthesis of 1-[(Triisopropylsilyl)ethynyl]-1,2-benziodoxol-3(1H)-one (TIPS-EBX): Process Safety Assessment and Impact of Impurities on Product Stability. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00498] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Durga Prasad Hari
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fedérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Paola Caramenti
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fedérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Lionel Schouwey
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fedérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Miyeon Chang
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fedérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Stefano Nicolai
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fedérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Donald Bachert
- Chemical Engineering R&D, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Timothy Wright
- Chemical Engineering R&D, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Chuck Orella
- Chemical Engineering R&D, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fedérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
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41
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Mondal A, Chen H, Flämig L, Wedi P, van Gemmeren M. Sterically Controlled Late-Stage C–H Alkynylation of Arenes. J Am Chem Soc 2019; 141:18662-18667. [DOI: 10.1021/jacs.9b10868] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Arup Mondal
- Max-Planck-Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Hao Chen
- Max-Planck-Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Lea Flämig
- Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Philipp Wedi
- Max-Planck-Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Manuel van Gemmeren
- Max-Planck-Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
- Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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42
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Li W, Liu H, Chen X, Li S, Zheng R, Zhang C, Zheng X, Yuan M, Li R, Fu H, Chen H. Palladium-catalyzed direct ortho-alkynylation of aryl acetamides with low catalyst loading. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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43
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Li Y, Chen H, Qu LB, Houk KN, Lan Y. Origin of Regiochemical Control in Rh(III)/Rh(V)-Catalyzed Reactions of Unsaturated Oximes and Alkenes to Form Pyrdines. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02085] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yingzi Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
- Department of Chemistry and Biochemistry, University of California—Los Angeles, Los Angeles, California 90095-1569, United States
| | - Haohua Chen
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California—Los Angeles, Los Angeles, California 90095-1569, United States
| | - Yu Lan
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
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44
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Li M, Wang JH, Li W, Lin CD, Zhang LB, Wen LR. N-Phenoxyamides as Multitasking Reagents: Base-Controlled Selective Construction of Benzofurans or Dihydrobenzofuro[2,3-d]oxazoles. J Org Chem 2019; 84:8523-8530. [DOI: 10.1021/acs.joc.9b00858] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Jia-Hui Wang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Wei Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Cheng-Dong Lin
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Lin-Bao Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
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45
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Hanchate V, Muniraj N, Prabhu KR. Rh(III)-Catalyzed Oxidative Annulation of Sulfoximines with Arylalkynyl Silanes via Desilylation. J Org Chem 2019; 84:8248-8255. [DOI: 10.1021/acs.joc.9b00743] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vinayak Hanchate
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, Karnataka, India
| | - Nachimuthu Muniraj
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, Karnataka, India
| | - Kandikere Ramaiah Prabhu
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, Karnataka, India
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46
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Hari DP, Schouwey L, Barber V, Scopelliti R, Fadaei‐Tirani F, Waser J. Ethynylbenziodazolones (EBZ) as Electrophilic Alkynylation Reagents for the Highly Enantioselective Copper‐Catalyzed Oxyalkynylation of Diazo Compounds. Chemistry 2019; 25:9522-9528. [DOI: 10.1002/chem.201900950] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/06/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Durga Prasad Hari
- Laboratory of Catalysis and Organic SynthesisEcole Polytechnique Fédérale de Lausanne EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Lionel Schouwey
- Laboratory of Catalysis and Organic SynthesisEcole Polytechnique Fédérale de Lausanne EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Verity Barber
- Laboratory of Catalysis and Organic SynthesisEcole Polytechnique Fédérale de Lausanne EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Rosario Scopelliti
- Institute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL SB ISIC GE, BCH 2111 1015 Lausanne Switzerland
| | - Farzaneh Fadaei‐Tirani
- Institute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL SB ISIC GE, BCH 2111 1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic SynthesisEcole Polytechnique Fédérale de Lausanne EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
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47
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Rej S, Chatani N. Rhodiumkatalysierte sp 2‐ und sp 3‐C‐H‐Funktionalisierungen mit entfernbaren dirigierenden Gruppen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201808159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Supriya Rej
- Department of Applied ChemistryFaculty of EngineeringOsaka University, Suita Osaka 565-0871 Japan
| | - Naoto Chatani
- Department of Applied ChemistryFaculty of EngineeringOsaka University, Suita Osaka 565-0871 Japan
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48
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Rej S, Chatani N. Rhodium-Catalyzed C(sp 2 )- or C(sp 3 )-H Bond Functionalization Assisted by Removable Directing Groups. Angew Chem Int Ed Engl 2019; 58:8304-8329. [PMID: 30311719 DOI: 10.1002/anie.201808159] [Citation(s) in RCA: 263] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/12/2018] [Indexed: 12/25/2022]
Abstract
In recent years, transition-metal-catalyzed C-H activation has become a key strategy in the field of organic synthesis. Rhodium complexes are widely used as catalysts in a variety of C-H functionalization reactions because of their high reactivity and selectivity. The availability of a number of rhodium complexes in various oxidation states enables diverse reaction patterns to be obtained. Regioselectivity, an important issue in C-H activation chemistry, can be accomplished by using a directing group to assist the reaction. However, to obtain the target functionalized compounds, it is also necessary to use a directing group that can be easily removed. A wide range of directed C-H functionalization reactions catalyzed by rhodium complexes have been reported to date. In this Review, we discuss Rh-catalyzed C-H functionalization reactions that are aided by the use of a removable directing group such as phenol, amine, aldehyde, ketones, ester, acid, sulfonic acid, and N-heteroaromatic derivatives.
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Affiliation(s)
- Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
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49
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Arambasic M, Majhail MK, Straker RN, Neuhaus JD, Willis MC. A rhodium-catalysed Sonogashira-type coupling exploiting C-S functionalisation: orthogonality with palladium-catalysed variants. Chem Commun (Camb) 2019; 55:2757-2760. [PMID: 30762057 DOI: 10.1039/c9cc00092e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This report concerns the development of an efficient Sonogashira-type coupling of arylmethylsulfides and terminal alkynes to generate aryl alkyne motifs. Orthogonal reactivity between traditional Pd catalysts, and the Rh catalysts employed, results in the ability to selectively activate either the C-S bond or C-X bond through catalyst choice. The Rh-bisphosphine catalyst has further been shown to be able to effect a hydroacylation-Sonogashira tandem sequence, and in combination with further onward reactions has been used in the synthesis of heterocycles and polycyclic systems.
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Affiliation(s)
- Milan Arambasic
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
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50
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Wu W, Fang S, Jiang G, Li M, Jiang H. Palladium-catalyzed regioselective C–H alkynylation of indoles with bromoalkynes in water. Org Chem Front 2019. [DOI: 10.1039/c8qo01261j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A palladium-catalyzed regioselective C(sp2)–H alkynylation between indoles and bromoalkynes in water has been developed, affording diverse functionalized 2-alkynylindoles in good yields.
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Affiliation(s)
- Wanqing Wu
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
| | - Songjia Fang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Guangbin Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Meng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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