1
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Nozawa-Kumada K, Ono K, Kurosu S, Shigeno M, Kondo Y. Copper-catalyzed aerobic benzylic C(sp 3)-H lactonization of 2-alkylbenzamides via N-centered radicals. Org Biomol Chem 2022; 20:5948-5952. [PMID: 35262165 DOI: 10.1039/d2ob00281g] [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 describe the copper-catalyzed aerobic C(sp3)-H functionalization of 2-alkylbenzamides for the synthesis of benzolactones. This reaction proceeds via 1,5-hydrogen atom transfer of N-centered radicals directly generated by N-H bond cleavage and does not require the synthesis of pre-functionalized N-centered radical precursors or the use of strong stoichiometric oxidants.
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Affiliation(s)
- Kanako Nozawa-Kumada
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Kanako Ono
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Satoshi Kurosu
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Masanori Shigeno
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Yoshinori Kondo
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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2
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Babu SA, Aggarwal Y, Patel P, Tomar R. Diastereoselective palladium-catalyzed functionalization of prochiral C(sp 3)-H bonds of aliphatic and alicyclic compounds. Chem Commun (Camb) 2022; 58:2612-2633. [PMID: 35113087 DOI: 10.1039/d1cc05649b] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We highlight the reported developments of the palladium-catalyzed C-H activation and functionalization of the inactive/unreactive prochiral C(sp3)-H bonds of aliphatic and alicyclic compounds. There exist numerous classical methods for generating contiguous stereogenic centers in a compound with a high degree of stereocontrol. Along similar lines, the Pd(II)-catalyzed, directing group-aided functionalization of inactive prochiral/diastereotopic C(sp3)-H bonds have been exploited to accomplish the stereoselective construction of stereo-arrays in organic compounds. We present a concise discussion on how specific strategies consisting of Pd(II)-catalyzed, directing group-aided C(sp3)-H functionalization have been utilized to generate two or more stereogenic centers in aliphatic and alicyclic compounds.
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Affiliation(s)
- Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Yashika Aggarwal
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Pooja Patel
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Radha Tomar
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
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3
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Font M, Gulías M, Mascareñas JL. Transition‐Metal‐Catalyzed Annulations Involving the Activation of C(sp
3
)−H Bonds. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Marc Font
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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4
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Font M, Gulías M, Mascareñas JL. Transition-Metal-Catalyzed Annulations Involving the Activation of C(sp 3 )-H Bonds. Angew Chem Int Ed Engl 2022; 61:e202112848. [PMID: 34699657 PMCID: PMC9300013 DOI: 10.1002/anie.202112848] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Indexed: 12/15/2022]
Abstract
The selective functionalization of C(sp3 )-H bonds using transition-metal catalysis is among the more attractive transformations of modern synthetic chemistry. In addition to its inherent atom economy, such reactions open unconventional retrosynthetic pathways that can streamline synthetic processes. However, the activation of intrinsically inert C(sp3 )-H bonds, and the selection among very similar C-H bonds, represent highly challenging goals. In recent years there has been notable progress tackling these issues, especially with regard to the development of intermolecular reactions entailing the formation of C-C and C-heteroatom bonds. Conversely, the assembly of cyclic products from simple acyclic precursors using metal-catalyzed C(sp3 )-H bond activations has been less explored. Only recently has the number of reports on such annulations started to grow. Herein we give an overview of some of the more relevant advances in this exciting topic.
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Grants
- SAF2016-76689-R Ministerio de Ciencia, Innovación y Universidades
- PID2019-108624RBI00 Ministerio de Ciencia, Innovación y Universidades
- PID2019-110385GB-I00 Ministerio de Ciencia, Innovación y Universidades
- IJCI-2017-31450 Ministerio de Ciencia, Innovación y Universidades
- 2021-CP054, ED431C-2021/25 Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia
- ED431G 2019/03 Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia
- 340055 FP7 Ideas: European Research Council
- European Regional Development Fund
- Ministerio de Ciencia, Innovación y Universidades
- Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia
- FP7 Ideas: European Research Council
- European Regional Development Fund
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Affiliation(s)
- Marc Font
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
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5
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Zhang Q, Shi BF. 2-(Pyridin-2-yl)isopropyl (PIP) Amine: An Enabling Directing Group for Divergent and Asymmetric Functionalization of Unactivated Methylene C(sp 3)-H Bonds. Acc Chem Res 2021; 54:2750-2763. [PMID: 34019373 DOI: 10.1021/acs.accounts.1c00168] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Directing group (DG) assistance provides a good solution to the problems of reactivity and selectivity, two of the fundamental challenges in C(sp3)-H activation. However, the activation of unbiased methylene C(sp3)-H bonds remains challenging due to the high heterolytic bond dissociation energy and substantial steric hindrance. Two main strategies have been developed thus far, that is, use of a strongly coordinating bidentate DG pioneered by Daugulis and use of a weakly coordinating monodentate DG accelerated by pyridine-type ligands, as disclosed by Yu. The seminal work by Daugulis sparked significant interest in the application of the monoanionic bidentate auxiliary in aliphatic C-H activation reactions. Our research has focused on enabling the divergent functionalization and enantiotopic differentiation of unactivated methylene C-H bonds. Inspired by the structure of bidentate 8-aminoquinoline and the accelerating effect of the gem-dimethyl moiety in cyclometalations, we developed a strongly coordinating bidentate 2-(pyridine-yl)isopropyl (PIP) amine DG consisting of a pyridyl group, a gem-dimethyl moiety, and an amino group, which enabled the divergent functionalization of unactivated β-methylene C(sp3)-H bonds to forge C-O, C-N, C-C, and C-F bonds with palladium catalysts. The exclusive β-selectivity was ascribed to the preferential formation of kinetically favored [5,5]-bicyclic palladacycle intermediates. DFT calculations revealed that the well-designed gem-dimethyl group was responsible for the lowered energy and compressed bite angle of the key transition state related to C-H cleavage.More recently, the combination of PIP amine with axially chiral ligands was found to promote asymmetric functionalization of unbiased methylene C(sp3)-H bonds, a challenging research topic in the area of C-H activation that remains to be addressed. Two different types of axially chiral ligands, namely, non-C2-symmetric chiral phosphoric acids (CPAs) and 3,3'-disubstituted BINOLs, have been developed. The former enabled Pd(II)-catalyzed inter- and intramolecular arylation of unbiased methylene C(sp3)-H bonds with high enantioselectivity, whereas the latter promoted a series of asymmetric functionalization reactions, such as alkynylation, arylation, alkenylation/aza-Wacker cyclization, and intramolecular amidation. The unexpectedly high stereocontrol compared with other bidentate DGs might be attributable to steric communication between the ligand and gem-dimethyl moiety of PIP amine. Thus far, the combination of PIP amine DG with 3,3'-disubstituted BINOL ligands is arguably the most general strategy for asymmetric functionalization of unbiased methylene C(sp3)-H bonds. Finally, the ease of installation and removal of PIP under mild conditions and synthetic applications are described.
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Affiliation(s)
- Qi Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
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6
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Kim K, Kim N, Hong S. Visible
Light‐Induced
Intramolecular C─O Bond Formation via 1,
5‐Hydrogen
Atom Transfer Strategy. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kiho Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon, 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology Daejeon, 34141 Korea
| | - Namhoon Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon, 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology Daejeon, 34141 Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon, 34141 Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology Daejeon, 34141 Korea
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7
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Rej S, Ano Y, Chatani N. Bidentate Directing Groups: An Efficient Tool in C-H Bond Functionalization Chemistry for the Expedient Construction of C-C Bonds. Chem Rev 2020; 120:1788-1887. [PMID: 31904219 DOI: 10.1021/acs.chemrev.9b00495] [Citation(s) in RCA: 583] [Impact Index Per Article: 145.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
During the past decades, synthetic organic chemistry discovered that directing group assisted C-H activation is a key tool for the expedient and siteselective construction of C-C bonds. Among the various directing group strategies, bidentate directing groups are now recognized as one of the most efficient devices for the selective functionalization of certain positions due to fact that its metal center permits fine, tunable, and reversible coordination. The family of bidentate directing groups permit various types of assistance to be achieved, such as N,N-dentate, N,O-dentate, and N,S-dentate auxiliaries, which are categorized based on the coordination site. In this review, we broadly discuss various C-H bond functionalization reactions for the formation of C-C bonds with the aid of bidentate directing groups.
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Affiliation(s)
- Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
| | - Yusuke Ano
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
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8
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Pandey G, Laha R, Mondal PK. Heterocyclization involving benzylic C(sp 3)-H functionalization enabled by visible light photoredox catalysis. Chem Commun (Camb) 2019; 55:9689-9692. [PMID: 31347622 DOI: 10.1039/c9cc04287c] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and efficient method for heterocyclization involving benzylic C(sp3)-H functionalization enabled by visible light photoredox catalysis to access a wide range of structurally diverse oxygen as well as nitrogen heterocycles up to a gram scale is reported. The potential application of this new methodology is demonstrated by the total synthesis of (-)-codonopsinine and (+)-centrolobine. Herein it is proposed that selectfluor, unlike a fluorinating reagent, acts as an oxidative quencher and a hydrogen radical acceptor.
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Affiliation(s)
- Ganesh Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, UP, India.
| | - Ramkrishna Laha
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, UP, India.
| | - Pradip Kumar Mondal
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, UP, India.
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9
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Zhang Q, Shi B. From Reactivity and Regioselectivity to Stereoselectivity: An Odyssey of Designing PIP Amine and Related Directing Groups for C—H Activation. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900090] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Qi Zhang
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
| | - Bing‐Feng Shi
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
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10
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Nozawa‐Kumada K, Kurosu S, Shigeno M, Kondo Y. Peroxydisulfate‐Mediated Transition‐Metal‐Free Oxidative C(sp
3
)−H Bond Lactonization. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kanako Nozawa‐Kumada
- Graduate School of Pharmaceutical SciencesTohoku University 6-3 Aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Satoshi Kurosu
- Graduate School of Pharmaceutical SciencesTohoku University 6-3 Aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Masanori Shigeno
- Graduate School of Pharmaceutical SciencesTohoku University 6-3 Aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Yoshinori Kondo
- Graduate School of Pharmaceutical SciencesTohoku University 6-3 Aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
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11
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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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12
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Qiu FC, Xie Q, Guan BT. Palladium-Catalyzed ortho
-Alkoxylation of Tertiary Benzamides: H2
SO4
as an Effective Additive. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700525] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Fang-Cheng Qiu
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Qi Xie
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Bing-Tao Guan
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; Tianjin 300071 China
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13
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Li Y, Zhu L, Cao X, Au CT, Qiu R, Yin SF. Metal-free C5-H Bromination of Quinolines for One-pot C−X (X=C, O, S) Bond Formations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700391] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- You Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Longzhi Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Xin Cao
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Chak-Tong Au
- College of Chemistry and Chemical Engineering; Hunan Institute of Engineering; Xiangtan 411104 People's Republic of China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 People's Republic of China
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