1
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Zhao JH, Zheng L, Zou JY, Zhang SY, Shen HC, Wu Y, Wang P. Construction of Si-Stereogenic Silanols by Palladium-Catalyzed Enantioselective C-H Alkenylation. Angew Chem Int Ed Engl 2024; 63:e202402612. [PMID: 38410071 DOI: 10.1002/anie.202402612] [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: 02/05/2024] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 02/28/2024]
Abstract
The construction of silicon-stereogenic silanols via Pd-catalyzed intermolecular C-H alkenylation with the assistance of a commercially available L-pyroglutamic acid has been realized for the first time. Employing oxime ether as the directing group, silicon-stereogenic silanol derivatives could be readily prepared with excellent enantioselectivities, featuring a broad substrate scope and good functional group tolerance. Moreover, parallel kinetic resolution with unsymmetric substrates further highlighted the generality of this protocol. Mechanistic studies indicate that L-pyroglutamic acid could stabilize the Pd catalyst and provide excellent chiral induction. Preliminary computational studies unveil the origin of the enantioselectivity in the C-H bond activation step.
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Affiliation(s)
- Jia-Hui Zhao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Long Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, China
| | - Jian-Ye Zou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, China
| | - Sheng-Ye Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, China
| | - Hua-Chen Shen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, China
| | - Yichen Wu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, China
| | - Peng Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, CAS, 345 Lingling Road, Shanghai, 200032, China
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China
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2
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Bang J, Gi S, Lee Y, Tan KL, Lee S. Meta-Selective C-H Functionalization of Arylsilanes Using a Silicon Tethered Directing Group. Org Lett 2022; 24:5181-5185. [PMID: 35822845 DOI: 10.1021/acs.orglett.2c02015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe meta-selective C-H functionalization of arylsilanes using a Si-tethered directing group. The current method enables a selective alkenylation of arenes bearing a variety of functional groups, and several electron-deficient olefins are also applicable as coupling partners. Further functional group transformations of the silicon-tethered directing group provide multisubstituted arenes efficiently.
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Affiliation(s)
- Jaehan Bang
- Department of Physics and Chemistry, DGIST, 333 Techno Jungang-daero, Dalseong-gun, Daegu 42988, Republic of Korea
| | - Seyun Gi
- School of Undergraduate Studies, DGIST, 333 Techno Jungang-daero, Dalseong-gun, Daegu 42988, Republic of Korea
| | - Yoonjung Lee
- School of Undergraduate Studies, DGIST, 333 Techno Jungang-daero, Dalseong-gun, Daegu 42988, Republic of Korea
| | - Kian L Tan
- Global Discovery Chemistry-SynTech Group, Novartis Institutes for Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Sunggi Lee
- Department of Physics and Chemistry, DGIST, 333 Techno Jungang-daero, Dalseong-gun, Daegu 42988, Republic of Korea.,Center for Basic Science, DGIST, 333 Techno Jungang-daero, Dalseong-gun, Daegu 42988, Republic of Korea
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3
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Dutta U, Maiti D. Emergence of Pyrimidine-Based meta-Directing Group: Journey from Weak to Strong Coordination in Diversifying meta-C-H Functionalization. Acc Chem Res 2022; 55:354-372. [PMID: 35021007 DOI: 10.1021/acs.accounts.1c00629] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
C-H activation has emerged as a powerful transformative synthetic tool to construct complex molecular frameworks, which are ubiquitous in natural products, medicines, dyes, polymers, and many more. However, reactivity and selectivity, arising from the inertness of C-H bonds and their overabundance in organic molecules, are the two major fundamental challenges in developing various carbon-carbon (C-C) and carbon-heteroatom (C-X) bond formation reactions via C-H activation technique. Functional groups with coordinating capacity to the transition metal catalysts, profoundly known as directing groups (DGs), have shown great promise in exerting selective C-H activation, often called site-selective or regioselective transformation of a target molecule. Advent of directing group (DG)-assisted strategies not only has resolved the selectivity issues but also offers a unique solution to the rapid synthesis of complex molecules in a convenient and predictable manner. Our laboratory, in this regard, is fascinated by the prospect of DG-assisted distal C-H functionalization of arenes, in which the target C-H bond is remotely located from the existing directing group. Notably, in opposition to proximal ortho-C-H activation, which proceeded via an energetically favorable five- to seven-membered metallacycle, distal C-H activation remained a formidable challenge as it required formation of a large macrocyclic metallacycle. Therefore, designing a suitable directing template that would maintain the required distance and geometric relationship between the target C-H bond and the appended directing auxiliary in order to ensure the prolific delivery of the metal catalyst to the closest proximity of targeted distal C-H bond was the key to success. In this regard, the Yu group devised an elegant "U-shaped" template for the first time to execute distal meta-C-H activation recruiting a cyano-based directing group. Our initial effort to diversify the scope of meta-C-H functionalization using a cyano-based template led us to realize that the "cyano-based DGs" are intrinsically limited with weak coordinating ability, competitive binding mode (end-on vs side-on), and incompatibility with acidic and basic reaction conditions. In search of a robust directing auxiliary, we were intrigued by the possibility of using the strongly coordinating ability of pyrimidine and quinoline-based DGs.In this Account, we describe our journey from the weakly coordinating cyano-based DG to the strongly coordinating pyrimidine-based DG to achieve diverse meta-C-H functionalization of electronically and sterically unbiased arenes. While some of the functionalizations were achieved by finding suitable reaction conditions, others were led by mechanistic understanding. Notably, initial development in this realm was constrained with short linkers, in which the DG was attached to the arene of interest through 2-4 atoms. In later studies, we demonstrated that the selective meta-C-H activation can be attained even though the DG is 10-atoms away from the targeted arene. More importantly, a transient DG was successfully utilized to deliver meta-C-H olefination of arenes via in situ imine formation, which provided a step-economic route to meta-C-H activation.We hope that this Account will stimulate further template design and will provide a guiding platform for the future development of distal meta-C-H functionalization.
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Affiliation(s)
- Uttam Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
- Tokyo Tech World Research Hub Initiative (WRHI) Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Tokyo 152-8550 Japan
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4
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Saha A, Guin S, Ali W, Bhattacharya T, Sasmal S, Goswami N, Prakash G, Sinha SK, Chandrashekar HB, Panda S, Anjana SS, Maiti D. Photoinduced Regioselective Olefination of Arenes at Proximal and Distal Sites. J Am Chem Soc 2022; 144:1929-1940. [DOI: 10.1021/jacs.1c12311] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Argha Saha
- 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
| | - Wajid Ali
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Trisha Bhattacharya
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sheuli Sasmal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Nupur Goswami
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Gaurav Prakash
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Soumya Kumar Sinha
- 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
| | - S. S. Anjana
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
- Tokyo Tech World Research Hub Initiative (WRHI) Laboratory for Chemistry and Life Science Tokyo Institute of Technology, Tokyo 152-8550, Japan
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5
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Sand P, Schmidt B. Pd‐Catalyzed Oxidative Sulfoalkenylation of Acetanilides and Traceless Removal of the Catalyst Directing Group. ChemistrySelect 2021. [DOI: 10.1002/slct.202101009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Patrick Sand
- Institut für Chemie Universtität Potsdam Karl-Liebknecht-Straße 24–25 D-14476 Potsdam-Golm Germany
| | - Bernd Schmidt
- Institut für Chemie Universtität Potsdam Karl-Liebknecht-Straße 24–25 D-14476 Potsdam-Golm Germany
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6
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Pimparkar S, Bhattacharya T, Maji A, Saha A, Jayarajan R, Dutta U, Lu G, Lupton DW, Maiti D. Para-Selective Cyanation of Arenes by H-Bonded Template. Chemistry 2020; 26:11558-11564. [PMID: 32196777 DOI: 10.1002/chem.202001368] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Indexed: 12/31/2022]
Abstract
The significance of site selective functionalization stands upon the superior selectivity, easy synthesis and diverse product utility. In this work, we demonstrate the para-selective introduction of versatile nitrile moiety, enabled by a detachable and reusable H-bonded auxiliary. The methodology holds its efficiency irrespective of substrate electronic bias. The conspicuous shift in the step energetics was probed by both experimental and computational mechanistic tools, which heralds the inception of para-deuteration. The synthetic impact of the methodology was highlighted with reusability of directing group and post synthetic modifications.
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Affiliation(s)
- Sandeep Pimparkar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.,IITB-Monash Research Academy, Near estate office, IIT Bombay Powai, Mumbai, 400076, India.,School of Chemistry, Monash University, Clayton, VIC 3168, Australia
| | - Trisha Bhattacharya
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Arun Maji
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Argha Saha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Ramasamy Jayarajan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Uttam Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.,IITB-Monash Research Academy, Near estate office, IIT Bombay Powai, Mumbai, 400076, India.,School of Chemistry, Monash University, Clayton, VIC 3168, Australia
| | - Gang Lu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - David W Lupton
- IITB-Monash Research Academy, Near estate office, IIT Bombay Powai, Mumbai, 400076, India.,School of Chemistry, Monash University, Clayton, VIC 3168, Australia
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.,Tokyo Tech World Research Hub Initiative (WRHI), Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, R1-104, 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503, Japan
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7
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Affiliation(s)
- Aniket Gholap
- Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Sukdev Bag
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sukumar Pradhan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Anant R. Kapdi
- Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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8
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Casali E, Kalra P, Brochetta M, Borsari T, Gandini A, Patra T, Zanoni G, Maiti D. Overriding ortho selectivity by template assisted meta-C–H activation of benzophenones. Chem Commun (Camb) 2020; 56:7281-7284. [DOI: 10.1039/d0cc03172k] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A regioselective meta-C–H activation strategy for benzophenone was successfully developed by overriding the inherent ketone-directed ortho-selectivity.
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Affiliation(s)
- Emanuele Casali
- Dipartimento di Chimica, Università di Pavia
- 27100 Pavia
- Italy
| | | | | | - Tania Borsari
- Dipartimento di Chimica, Università di Pavia
- 27100 Pavia
- Italy
| | - Andrea Gandini
- Dipartimento di Chimica, Università di Pavia
- 27100 Pavia
- Italy
| | - Tuhin Patra
- Department of Chemistry
- IIT Bombay
- Mumbai 400076
- India
| | - Giuseppe Zanoni
- Dipartimento di Chimica, Università di Pavia
- 27100 Pavia
- Italy
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9
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Panja S, Maity S, Majhi B, Ranu BC. Palladium-Catalyzed Olefination of 4H-Benzo[d][1,3]oxazin-4-one Derivatives with Activated Alkenes via Preferential Cyclic Imine-N-Directed Aryl C-H Activation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900935] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Subir Panja
- School of Chemical Sciences; Indian Association for the Cultivation of Science; 700032 Jadavpur, Kolkata India
| | - Srabani Maity
- School of Chemical Sciences; Indian Association for the Cultivation of Science; 700032 Jadavpur, Kolkata India
| | - Biju Majhi
- School of Chemical Sciences; Indian Association for the Cultivation of Science; 700032 Jadavpur, Kolkata India
| | - Brindaban C. Ranu
- School of Chemical Sciences; Indian Association for the Cultivation of Science; 700032 Jadavpur, Kolkata India
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10
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Han JL, Qin Y, Zhao D. C(sp3)–H Bond Arylation and Amidation of Si-Bound Methyl Group via Directing Group Strategy. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00771] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jie-Lian Han
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Ying Qin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
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11
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Zheng Y, Song W. Pd-Catalyzed Site-Selective C(sp2)–H Olefination and Alkynylation of Phenylalanine Residues in Peptides. Org Lett 2019; 21:3257-3260. [DOI: 10.1021/acs.orglett.9b00987] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yong Zheng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China
| | - Weibin Song
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Stake Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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12
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Sambiagio C, Schönbauer D, Blieck R, Dao-Huy T, Pototschnig G, Schaaf P, Wiesinger T, Zia MF, Wencel-Delord J, Besset T, Maes BUW, Schnürch M. A comprehensive overview of directing groups applied in metal-catalysed C-H functionalisation chemistry. Chem Soc Rev 2018; 47:6603-6743. [PMID: 30033454 PMCID: PMC6113863 DOI: 10.1039/c8cs00201k] [Citation(s) in RCA: 1097] [Impact Index Per Article: 182.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/20/2022]
Abstract
The present review is devoted to summarizing the recent advances (2015-2017) in the field of metal-catalysed group-directed C-H functionalisation. In order to clearly showcase the molecular diversity that can now be accessed by means of directed C-H functionalisation, the whole is organized following the directing groups installed on a substrate. Its aim is to be a comprehensive reference work, where a specific directing group can be easily found, together with the transformations which have been carried out with it. Hence, the primary format of this review is schemes accompanied with a concise explanatory text, in which the directing groups are ordered in sections according to their chemical structure. The schemes feature typical substrates used, the products obtained as well as the required reaction conditions. Importantly, each example is commented on with respect to the most important positive features and drawbacks, on aspects such as selectivity, substrate scope, reaction conditions, directing group removal, and greenness. The targeted readership are both experts in the field of C-H functionalisation chemistry (to provide a comprehensive overview of the progress made in the last years) and, even more so, all organic chemists who want to introduce the C-H functionalisation way of thinking for a design of straightforward, efficient and step-economic synthetic routes towards molecules of interest to them. Accordingly, this review should be of particular interest also for scientists from industrial R&D sector. Hence, the overall goal of this review is to promote the application of C-H functionalisation reactions outside the research groups dedicated to method development and establishing it as a valuable reaction archetype in contemporary R&D, comparable to the role cross-coupling reactions play to date.
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Affiliation(s)
- Carlo Sambiagio
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - David Schönbauer
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Remi Blieck
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Toan Dao-Huy
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Gerit Pototschnig
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Patricia Schaaf
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Thomas Wiesinger
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Muhammad Farooq Zia
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Joanna Wencel-Delord
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509)
, Université de Strasbourg
,
ECPM 25 Rue Becquerel
, 67087 Strasbourg
, France
| | - Tatiana Besset
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Bert U. W. Maes
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
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13
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Wang J, Li B, Liu LC, Jiang C, He T, He W. Metal-free visible-light-mediated aerobic oxidation of silanes to silanols. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9289-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Parasram M, Gevorgyan V. Silicon-Tethered Strategies for C-H Functionalization Reactions. Acc Chem Res 2017; 50:2038-2053. [PMID: 28771325 DOI: 10.1021/acs.accounts.7b00306] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Selective and efficient functionalization of ubiquitous C-H bonds is the Holy Grail of organic synthesis. Most advances in this area rely on employment of strongly or weakly coordinating directing groups (DGs) which have proven effective for transition-metal-catalyzed functionalization of C(sp2)-H and C(sp3)-H bonds. Although most directing groups are important functionalities in their own right, in certain cases, the DGs become static entities that possess very little synthetic leverage. Moreover, some of the DGs employed are cumbersome or unpractical to remove, which precludes the use of this approach in synthesis. It is believed, that development of a set of easily installable and removable/modifiable DGs for C-H functionalization would add tremendous value to the growing area of directed functionalization, and hence would promote its use in synthesis and late-stage functionalization of complex molecules. In particular, silicon tethers have long provided leverage in organic synthesis as easily installable and removable/modifiable auxiliaries for a variety of processes, including radical transformations, cycloaddition reactions, and a number of TM-catalyzed methods, including ring-closing metathesis (RCM) and cross-coupling reactions. Employment of Si-tethers is highly attractive for several reasons: (1) they are easy to handle/synthesize and are relatively stable; (2) they utilize cheap and abundant silicon precursors; and (3) Si-tethers are easily installable and removable/modifiable. Hence, development of Si-tethers for C-H functionalization reactions is appealing not only from a practical but also from a synthetic standpoint, since the Si-tether can provide an additional handle for diversification of organic molecules post-C-H functionalization. Over the past few years, we developed a set of Si-tether approaches for C-H functionalization reactions. The developed Si-tethers can be categorized into four types: (Type-1) Si-tethers possessing a reacting group, where the reacting group is delivered to the site of functionalization; (Type-2) Si-tethers possessing a DG, designed for selective C(sp2)-H functionalization of arenes; (Type-3) reactive Si-tethers for C-H silylation of organic molecules; and finally, (Type-4) reactive Si-tethers containing a DG, developed for selective C-H silylation/hydroxylation of challenging C(sp3)-H bonds. In this Account, we outline our advances on the employment of silicon auxiliaries for directed C-H functionalization reactions. The discussion of the strategies for employment of different Si-tethers, functionalization/modification of silicon tethers, and the methodological developments on C-C, C-X, C-O, and C-Si bond forming reactions via silicon tethers will also be presented. While the work described herein presents a substantial advance for the area of C-H functionalization, challenges still remain. The use of noble metals are required for the C-H functionalization methods presented herein. Also, the need for stoichiometric use of high molecular weight silicon auxiliaries is a shortcoming of the presented concept.
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Affiliation(s)
- Marvin Parasram
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
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15
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Lin Y, Jiang KZ, Cao J, Zheng ZJ, Xu Z, Cui YM, Xu LW. Iridium-Catalyzed Intramolecular C-H Silylation of Siloxane-Tethered Arene and Hydrosilane: Facile and Catalytic Synthesis of Cyclic Siloxanes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700160] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yan Lin
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 People's Republic of China
| | - Ke-Zhi Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 People's Republic of China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 People's Republic of China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 People's Republic of China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 People's Republic of China
| | - Yu-Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 People's Republic of China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 311121 People's Republic of China
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16
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Liang QJ, Yang C, Meng FF, Jiang B, Xu YH, Loh TP. Chelation versus Non-Chelation Control in the Stereoselective Alkenyl sp 2 C-H Bond Functionalization Reaction. Angew Chem Int Ed Engl 2017; 56:5091-5095. [PMID: 28370972 DOI: 10.1002/anie.201700559] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Indexed: 11/10/2022]
Abstract
A hydroxy group chelation-assisted stereospecific oxidative cross-coupling reaction between alkenes was developed under mild reaction conditions. In the presence of palladium catalyst, the alkenes tethered with hydroxy functionality can couple efficiently with electron-deficient alkenes to form the corresponding multi-substituted olefin products. The hydroxy group on the substrate could play dual roles in reaction, acting as the directing group for alkenyl C-H bond activation and controlling the stereoselectivity of the products.
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Affiliation(s)
- Qiu-Ju Liang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Chao Yang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Fei-Fan Meng
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Bing Jiang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Teck-Peng Loh
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China.,Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu, 210009, China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637616, Singapore
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17
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Liang QJ, Yang C, Meng FF, Jiang B, Xu YH, Loh TP. Chelation versus Non-Chelation Control in the Stereoselective Alkenyl sp2
C−H Bond Functionalization Reaction. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700559] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qiu-Ju Liang
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road Hefei, Anhui 230026 China
| | - Chao Yang
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road Hefei, Anhui 230026 China
| | - Fei-Fan Meng
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road Hefei, Anhui 230026 China
| | - Bing Jiang
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road Hefei, Anhui 230026 China
| | - Yun-He Xu
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road Hefei, Anhui 230026 China
| | - Teck-Peng Loh
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road Hefei, Anhui 230026 China
- Institute of Advanced Synthesis; Jiangsu National Synergetic Innovation Center for Advanced Materials; Nanjing Tech University; 30 South Puzhu Road Nanjing, Jiangsu 210009 China
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637616 Singapore
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18
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Wang Y, Gevorgyan V. Synthesis of Active Hexafluoroisopropyl Benzoates through a Hydrogen-Bond-Enabled Palladium(II)-Catalyzed C−H Alkoxycarbonylation Reaction. Angew Chem Int Ed Engl 2017; 56:3191-3195. [DOI: 10.1002/anie.201611757] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/09/2017] [Indexed: 01/04/2023]
Affiliation(s)
- Yang Wang
- Department of Chemistry; University of Illinois at Chicago; 845 W Taylor St., Room 4500 Chicago IL 60607 USA
| | - Vladimir Gevorgyan
- Department of Chemistry; University of Illinois at Chicago; 845 W Taylor St., Room 4500 Chicago IL 60607 USA
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19
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Wang Y, Gevorgyan V. Synthesis of Active Hexafluoroisopropyl Benzoates through a Hydrogen-Bond-Enabled Palladium(II)-Catalyzed C−H Alkoxycarbonylation Reaction. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611757] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yang Wang
- Department of Chemistry; University of Illinois at Chicago; 845 W Taylor St., Room 4500 Chicago IL 60607 USA
| | - Vladimir Gevorgyan
- Department of Chemistry; University of Illinois at Chicago; 845 W Taylor St., Room 4500 Chicago IL 60607 USA
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20
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Deb A, Hazra A, Peng Q, Paton RS, Maiti D. Detailed Mechanistic Studies on Palladium-Catalyzed Selective C–H Olefination with Aliphatic Alkenes: A Significant Influence of Proton Shuttling. J Am Chem Soc 2017; 139:763-775. [DOI: 10.1021/jacs.6b10309] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arghya Deb
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Avijit Hazra
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Qian Peng
- Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
- State
Key Laboratory of Elemento-Organic Chemistry,Nankai University, Tianjin 300071, People’s Republic of China
| | - Robert S. Paton
- Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Debabrata Maiti
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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21
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Ma W, Gandeepan P, Li J, Ackermann L. Recent advances in positional-selective alkenylations: removable guidance for twofold C–H activation. Org Chem Front 2017. [DOI: 10.1039/c7qo00134g] [Citation(s) in RCA: 275] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Recent advances in transition-metal catalyzed positional-selective alkenylations via twofold C–H activation directed by removable or traceless directing groups are reviewed.
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Affiliation(s)
- Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Jie Li
- School of Pharmaceutical Science
- Jiangnan University
- 214122 Wuxi
- P. R. China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
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22
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Guo Y, Shao LY, Yu KK, Hu YH, Liu HW, Liao DH, Ji YF. Palladium-catalyzed site-selective direct olefination of 6-electron-withdrawing group substituted 3-arylbenzo[d]isoxazoles. Org Chem Front 2017. [DOI: 10.1039/c7qo00435d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Palladium-catalyzed direct olefination of 6-electron-withdrawing group substituted 3-arylbenzo[d]isoxazoles has been developed with exclusive site-selectivity and excellent E-stereoselectivity.
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Affiliation(s)
- Ying Guo
- School of Pharmacy
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Ling-Yan Shao
- School of Pharmacy
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Kun-Kun Yu
- School of Pharmacy
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Ya-Hua Hu
- School of Pharmacy
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Hong-Wei Liu
- School of Pharmacy
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Dao-Hua Liao
- School of Pharmacy
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Ya-Fei Ji
- School of Pharmacy
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
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23
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Wang X, Xie P, Qiu R, Zhu L, Liu T, Li Y, Iwasaki T, Au CT, Xu X, Xia Y, Yin SF, Kambe N. Nickel-catalysed direct alkylation of thiophenes via double C(sp3)–H/C(sp2)–H bond cleavage: the importance of KH2PO4. Chem Commun (Camb) 2017; 53:8316-8319. [DOI: 10.1039/c7cc04252c] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ni-catalyzed C–H/C–H cross-dehydrogenative coupling (CDC) reaction was developed for constructing various highly functionalized alkyl (aryl)-substituted thiophenes.
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24
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Deb A, Maiti D. Emergence of Unactivated Olefins for the Synthesis of Olefinated Arenes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601253] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Arghya Deb
- Department of Chemistry; Indian Institute of Technology Bombay; -400076 Powai, Mumbai Maharashtra India
| | - Debabrata Maiti
- Department of Chemistry; Indian Institute of Technology Bombay; -400076 Powai, Mumbai Maharashtra India
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25
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Hua Y, Asgari P, Avullala T, Jeon J. Catalytic Reductive ortho-C-H Silylation of Phenols with Traceless, Versatile Acetal Directing Groups and Synthetic Applications of Dioxasilines. J Am Chem Soc 2016; 138:7982-91. [PMID: 27265033 PMCID: PMC5103641 DOI: 10.1021/jacs.6b04018] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new, highly selective, bond functionalization strategy, achieved via relay of two transition metal catalysts and the use of traceless acetal directing groups, has been employed to provide facile formation of C-Si bonds and concomitant functionalization of a silicon group in a single vessel. Specifically, this approach involves the relay of Ir-catalyzed hydrosilylation of inexpensive and readily available phenyl acetates, exploiting disubstituted silyl synthons to afford silyl acetals and Rh-catalyzed ortho-C-H silylation to provide dioxasilines. A subsequent nucleophilic addition to silicon removes the acetal directing groups and directly provides unmasked phenol products and, thus, useful functional groups at silicon achieved in a single vessel. This traceless acetal directing group strategy for catalytic ortho-C-H silylation of phenols was also successfully applied to preparation of multisubstituted arenes. Remarkably, a new formal α-chloroacetyl directing group has been developed that allows catalytic reductive C-H silylation of sterically hindered phenols. In particular, this new method permits access to highly versatile and nicely differentiated 1,2,3-trisubstituted arenes that are difficult to access by other catalytic routes. In addition, the resulting dioxasilines can serve as chromatographically stable halosilane equivalents, which allow not only removal of acetal directing groups but also introduce useful functional groups leading to silicon-bridged biaryls. We demonstrated that this catalytic C-H bond silylation strategy has powerful synthetic potential by creating direct applications of dioxasilines to other important transformations, examples of which include aryne chemistry, Au-catalyzed direct arylation, sequential orthogonal cross-couplings, and late-stage silylation of phenolic bioactive molecules and BINOL scaffolds.
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Affiliation(s)
| | | | - Thirupataiah Avullala
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Junha Jeon
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
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26
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Ye X, Zhang Y, He Y, Shi X. 1,2,3-Triazole amine as directing group in promoting catalytic oxidative C–H olefination under aerobic conditions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Maya RJ, John J, Varma RL. A bentonite–gold nanohybrid as a heterogeneous green catalyst for selective oxidation of silanes. Chem Commun (Camb) 2016; 52:10625-8. [DOI: 10.1039/c6cc04855b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient, green and recyclable heterogeneous bentonite–gold nanohybrid catalyst was developed for the selective oxidation of silanes.
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Affiliation(s)
- R. J. Maya
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi 110001
- India
- Organic Chemistry Section
- CSIR-National Institute for Interdisciplinary Science and Technology
| | - Jubi John
- Organic Chemistry Section
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
| | - R. Luxmi Varma
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi 110001
- India
- Organic Chemistry Section
- CSIR-National Institute for Interdisciplinary Science and Technology
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28
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Zhang Y, Jiang H, Chen D, Zhang Y. Amino acid-promoted C–H alkylation with alkylboronic acids using a removable directing group. Org Biomol Chem 2016; 14:4585-9. [DOI: 10.1039/c6ob00674d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Palladium-catalyzed C–H alkylation reaction with alkylboronic acids has been developed using a removable pyridyldiisopropylsilyl directing group.
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Affiliation(s)
- Yu Zhang
- Department of Chemistry
- and Shanghai Key Lab of Chemical Assessment and Sustainability
- Tongji University
- Shanghai, 200092
- P. R. China
| | - Hang Jiang
- Department of Chemistry
- and Shanghai Key Lab of Chemical Assessment and Sustainability
- Tongji University
- Shanghai, 200092
- P. R. China
| | - Dushen Chen
- Department of Chemistry
- and Shanghai Key Lab of Chemical Assessment and Sustainability
- Tongji University
- Shanghai, 200092
- P. R. China
| | - Yanghui Zhang
- Department of Chemistry
- and Shanghai Key Lab of Chemical Assessment and Sustainability
- Tongji University
- Shanghai, 200092
- P. R. China
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29
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Geng K, Fan Z, Zhang A. Rhodium-catalyzed oxidative coupling of N-acyl anilines with alkynes using an acylamino moiety as the traceless directing group. Org Chem Front 2016. [DOI: 10.1039/c5qo00387c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rhodium-catalyzed oxidative annulation of N-acyl anilines with alkynes was developed by using the acylamino group as a traceless directing group for the first time.
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Affiliation(s)
- Kaijun Geng
- CAS Key Laboratory of Receptor Research
- and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL)
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai 201203
| | - Zhoulong Fan
- CAS Key Laboratory of Receptor Research
- and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL)
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai 201203
| | - Ao Zhang
- CAS Key Laboratory of Receptor Research
- and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL)
- Shanghai Institute of Materia Medica (SIMM)
- Chinese Academy of Sciences
- Shanghai 201203
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30
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Patra T, Watile R, Agasti S, Naveen T, Maiti D. Sequential meta-C–H olefination of synthetically versatile benzyl silanes: effective synthesis of meta-olefinated toluene, benzaldehyde and benzyl alcohols. Chem Commun (Camb) 2016; 52:2027-30. [DOI: 10.1039/c5cc09446a] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Template assisted sequential meta-C–H bis-olefination was achieved for synthetically versatile benzyl silanes with post synthetic modifications towards different useful functionalities.
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Affiliation(s)
- Tuhin Patra
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Rahul Watile
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Soumitra Agasti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Togati Naveen
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
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31
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Liu C, Yuan J, Gao M, Tang S, Li W, Shi R, Lei A. Oxidative Coupling between Two Hydrocarbons: An Update of Recent C–H Functionalizations. Chem Rev 2015; 115:12138-204. [DOI: 10.1021/cr500431s] [Citation(s) in RCA: 836] [Impact Index Per Article: 92.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Chao Liu
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Jiwen Yuan
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Meng Gao
- National
Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
| | - Shan Tang
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Wu Li
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Renyi Shi
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
- National
Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
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32
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Bag S, Patra T, Modak A, Deb A, Maity S, Dutta U, Dey A, Kancherla R, Maji A, Hazra A, Bera M, Maiti D. Remote para-C-H Functionalization of Arenes by a D-Shaped Biphenyl Template-Based Assembly. J Am Chem Soc 2015; 137:11888-91. [PMID: 26361337 DOI: 10.1021/jacs.5b06793] [Citation(s) in RCA: 259] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Site-selective C-H functionalization has emerged as an efficient tool in simplifying the synthesis of complex molecules. Most often, directing group (DG)-assisted metallacycle formation serves as an efficient strategy to ensure promising regioselectivity. A wide variety of ortho- and meta-C-H functionalizations stand as examples in this regard. Yet despite this significant progress, DG-assisted selective para-C-H functionalization in arenes has remained unexplored, mainly because it involves the formation of a geometrically constrained metallacyclic transition state. Here we report an easily recyclable, novel Si-containing biphenyl-based template that directs efficient functionalization of the distal p-C-H bond of toluene by forming a D-shaped assembly. This DG allows the required flexibility to support the formation of an oversized pre-transition state. By overcoming electronic and steric bias, para-olefination and acetoxylation were successfully performed while undermining o- and m-C-H activation. The applicability of this D-shaped biphenyl template-based strategy is demonstrated by synthesizing various complex molecules.
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Affiliation(s)
- Sukdev Bag
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Tuhin Patra
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Atanu Modak
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Uttam Dutta
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Aniruddha Dey
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Rajesh Kancherla
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Arun Maji
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Avijit Hazra
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Milan Bera
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
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33
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Wang Y, Gevorgyan V. General method for the synthesis of salicylic acids from phenols through palladium-catalyzed silanol-directed C-H carboxylation. Angew Chem Int Ed Engl 2015; 54:2255-9. [PMID: 25597502 PMCID: PMC4565602 DOI: 10.1002/anie.201410375] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 12/02/2014] [Indexed: 12/26/2022]
Abstract
A silanol-directed, palladium-catalyzed C-H carboxylation reaction of phenols to give salicylic acids has been developed. This method features high efficiency and selectivity, and excellent functional-group tolerance. The generality of this method was demonstrated by the carboxylation of estrone and by the synthesis of an unsymmetrically o,o'-disubstituted phenolic compound through two sequential C-H functionalization processes.
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Affiliation(s)
- Yang Wang
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St., Room 4500, Chicago, IL 60607 (USA), Homepage: http://www.chem.uic.edu/vggroup
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St., Room 4500, Chicago, IL 60607 (USA), Homepage: http://www.chem.uic.edu/vggroup
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34
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Zhang Y, Zhao H, Zhang M, Su W. Carboxylic Acids as Traceless Directing Groups for the Rhodium(III)-Catalyzed Decarboxylative CH Arylation of Thiophenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411701] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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35
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Wang Y, Gevorgyan V. General Method for the Synthesis of Salicylic Acids from Phenols through Palladium-Catalyzed Silanol-Directed CH Carboxylation. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410375] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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36
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Zhang Y, Zhao H, Zhang M, Su W. Carboxylic acids as traceless directing groups for the rhodium(III)-catalyzed decarboxylative C-H arylation of thiophenes. Angew Chem Int Ed Engl 2015; 54:3817-21. [PMID: 25631325 DOI: 10.1002/anie.201411701] [Citation(s) in RCA: 202] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Indexed: 01/26/2023]
Abstract
A rhodium(III)-catalyzed carboxylic acid directed decarboxylative C-H/C-H cross-coupling of carboxylic acids with thiophenes has been developed. With a slight adjustment of the reaction conditions based on the nature of the substrates, aryl carboxylic acids with a variety of substituents could serve as suitable coupling partners, and a broad variety of functional groups were tolerated. This method provides straightforward access to biaryl scaffolds with diverse substitution patterns, many of which have conventionally been synthesized through lengthy synthetic sequences. An illustrative example is the one-step gram-scale synthesis of a biologically active 3,5-substituted 2-arylthiophene by way of the current method.
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Affiliation(s)
- Yuanfei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian 350002 (China)
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37
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Behera A, Ali W, Guin S, Khatun N, Mohanta PR, Patel BK. Benzyl bromides as aroyl surrogates in substrate directed Pd catalysed o-aroylation. RSC Adv 2015. [DOI: 10.1039/c5ra03836g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An oxidative cross-coupling between directing substrates and benzyl bromides leading to o-aroylation has been achieved using TBHP/NMO, and Pd(ii).
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Affiliation(s)
- Ahalya Behera
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Wajid Ali
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Srimanta Guin
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Nilufa Khatun
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Bhisma K. Patel
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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38
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Reddy MC, Jeganmohan M. Ruthenium-catalyzed ortho alkenylation of aromatic nitriles with activated alkenes via C–H bond activation. Chem Commun (Camb) 2015; 51:10738-41. [DOI: 10.1039/c5cc03112e] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ruthenium-catalyzed ortho alkenylation of substituted aromatic and heteroaromatic nitriles with activated alkenes via C–H bond activation is described.
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Affiliation(s)
- Mallu Chenna Reddy
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune 411021
- India
| | - Masilamani Jeganmohan
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune 411021
- India
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39
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Cavanagh CW, Aukland MH, Hennessy A, Procter DJ. Iron-mediated C–H coupling of arenes and unactivated terminal alkenes directed by sulfur. Chem Commun (Camb) 2015; 51:9272-5. [DOI: 10.1039/c5cc02676h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A sulfur-directed Fe(iii)-mediated ortho C–H coupling of arenes with unactivated terminal alkenes gives products of regioselective alkene chloroarylation.
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Affiliation(s)
| | | | - Alan Hennessy
- Syngenta
- Jealott's Hill International Research Centre
- Bracknell
- UK
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40
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Hua Y, Asgari P, Dakarapu US, Jeon J. Reductive arene ortho-silanolization of aromatic esters with hydridosilyl acetals. Chem Commun (Camb) 2015; 51:3778-81. [DOI: 10.1039/c4cc09850a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The design and application of a single-pot, reductive arene C–H bond silanolization of esters for synthesis of ortho-formyl arylsilanols.
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Affiliation(s)
- Yuanda Hua
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
| | - Parham Asgari
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
| | - Udaya Sree Dakarapu
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
| | - Junha Jeon
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
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41
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Chen Z, Wang B, Zhang J, Yu W, Liu Z, Zhang Y. Transition metal-catalyzed C–H bond functionalizations by the use of diverse directing groups. Org Chem Front 2015. [DOI: 10.1039/c5qo00004a] [Citation(s) in RCA: 1238] [Impact Index Per Article: 137.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In this review, a summary of transition metal-catalyzed C–H activation by utilizing the functionalities as directing groups is presented.
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Affiliation(s)
- Zhengkai Chen
- ZJU-NHU United R&D Center
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Binjie Wang
- ZJU-NHU United R&D Center
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Jitan Zhang
- ZJU-NHU United R&D Center
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Wenlong Yu
- ZJU-NHU United R&D Center
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhanxiang Liu
- ZJU-NHU United R&D Center
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Yuhong Zhang
- ZJU-NHU United R&D Center
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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42
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Deb A, Bag S, Kancherla R, Maiti D. Palladium-Catalyzed Aryl C–H Olefination with Unactivated, Aliphatic Alkenes. J Am Chem Soc 2014; 136:13602-5. [DOI: 10.1021/ja5082734] [Citation(s) in RCA: 194] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sukdev Bag
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rajesh Kancherla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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43
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Ye X, Shi X. Palladium-Catalyzed Aerobic Oxidative C–H Olefination with Removable 1,2,3-Triazole Directing Group. Org Lett 2014; 16:4448-51. [PMID: 25115570 DOI: 10.1021/ol5019807] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaohan Ye
- C. Eugene
Bennett Department
of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Xiaodong Shi
- C. Eugene
Bennett Department
of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
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44
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Bhattarai BT, Adhikari S, Kimball EA, Moore JN, Shaughnessy KH, Snowden TS, Fronczek FR, Dolliver DD. Palladium-catalyzed ortho-halogenation of diaryl oxime ethers. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.080] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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45
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Kandukuri SR, Jiao L, Machotta AB, Oestreich M. Diastereotopic Group Selection in Hydroxy‐Directed Intramolecular CH Alkenylation of Indole under Oxidative Palladium(II) Catalysis. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301108] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sandeep R. Kandukuri
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany, Fax: (+49)‐30‐314‐28829
- NRW Graduate School of Chemistry, Organisch‐Chemisches Institut, Westfälische Wilhelms‐Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Lin‐Yu Jiao
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany, Fax: (+49)‐30‐314‐28829
| | - Axel B. Machotta
- Organisch‐Chemisches Institut, Westfälische Wilhelms‐Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany, Fax: (+49)‐30‐314‐28829
- Organisch‐Chemisches Institut, Westfälische Wilhelms‐Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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46
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Liu D, Liu C, Lei A. Nickel-catalyzed oxidative cross-coupling of arylboronic acids with olefins. PURE APPL CHEM 2014. [DOI: 10.1515/pac-2014-5034] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A novel and efficient nickel-catalyzed oxidative cross-coupling of arylboronic acids with olefins to synthesize 1,2-diarylalkenes has been developed. By employing Ni(acac)2 as the catalyst, TEMPO (2,2,6,6-tetramethylpiperidine 1-oxyl) as the oxidant, a variety of arylboronic acids and styrene derivatives could be cross-coupled efficiently to afford the corresponding 1,2-diarylalkenes in moderate-to-good yields. Notably, high E-selectivity of 1,2-diarylalkenes was obtained with the aid of a high temperature of 120°C. Moreover, boric acid esters also proved to be efficient coupling partners. Initial mechanistic studies suggest that this reaction proceeds through a radical pathway.
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47
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Luo J, Preciado S, Larrosa I. Overriding ortho-para selectivity via a traceless directing group relay strategy: the meta-selective arylation of phenols. J Am Chem Soc 2014; 136:4109-12. [PMID: 24612008 DOI: 10.1021/ja500457s] [Citation(s) in RCA: 285] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The direct functionalization of phenols at the ortho and para position is generally facilitated by the electron-donating nature of the hydroxyl group. Accessing meta-functionalized phenols from the parent phenols, on the other hand, generally requires lengthy synthetic sequences. Here, we report the first methodology for the one-pot direct meta-selective arylation of phenols. This methodology is based on a traceless directing group relay strategy. In this process carbon dioxide is used as a transient directing group which facilitates a palladium catalyzed arylation meta to the phenol hydroxyl group with iodoarenes. This transformation proceeds with complete meta-selectivity and is compatible with a variety of functional groups both in the phenol and in the iodoarene coupling partner.
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Affiliation(s)
- Junfei Luo
- School of Biological and Chemical Sciences, Queen Mary University of London , Joseph Priestley Building, Mile End Road, E1 4NS, London, U.K
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48
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Zhang S, Xu Z, Jia J, Tung CH, Xu Z. Synthesis of spiroaminals by bimetallic Au/Sc relay catalysis: TMS as a traceless controlling group. Chem Commun (Camb) 2014; 50:12084-7. [DOI: 10.1039/c4cc05610h] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An efficient synthesis of spiroaminals over fused aminals has been successfully developed by bimetallic Au/Sc catalysis by using TMS as a traceless controlling group.
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Affiliation(s)
- Shuo Zhang
- Key Lab for Colloid and Interface Chemistry of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, People's Republic of China
| | - Zhengliang Xu
- Key Lab for Colloid and Interface Chemistry of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, People's Republic of China
| | - Jiong Jia
- Key Lab for Colloid and Interface Chemistry of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, People's Republic of China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Chemistry of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, People's Republic of China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
| | - Zhenghu Xu
- Key Lab for Colloid and Interface Chemistry of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, People's Republic of China
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49
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Lee S, Lee H, Tan KL. Meta-selective C-H functionalization using a nitrile-based directing group and cleavable Si-tether. J Am Chem Soc 2013; 135:18778-81. [PMID: 24325399 PMCID: PMC3929498 DOI: 10.1021/ja4107034] [Citation(s) in RCA: 190] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A nitrile-based template that enables meta-selective C-H bond functionalization was developed. The template is applicable to a range of substituted arenes and tolerates a variety of functional groups. The directing group uses a silicon atom for attachment, allowing for a facile introduction/deprotection strategy increasing the synthetic practicality of this template.
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Affiliation(s)
- Sunggi Lee
- Boston College , 2609 Beacon Street Chestnut Hill, Massachusetts 02467
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50
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Wang B, Shen C, Yao J, Yin H, Zhang Y. Palladium(II)-Catalyzed ortho-Olefination of Arenes Applying Sulfoxides as Remote Directing Groups. Org Lett 2013; 16:46-9. [DOI: 10.1021/ol402921w] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Binjie Wang
- ZJU-NHU United R&D Center, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Chuang Shen
- ZJU-NHU United R&D Center, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Jinzhong Yao
- ZJU-NHU United R&D Center, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hong Yin
- ZJU-NHU United R&D Center, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yuhong Zhang
- ZJU-NHU United R&D Center, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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