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Yuan CH, Wang XX, Huang K, Jiao L. Unveiling the Mechanistic Role of Chiral Palladacycles in Pd(II)-Catalyzed Enantioselective C(sp 3)-H Functionalization. Angew Chem Int Ed Engl 2024; 63:e202405062. [PMID: 38711169 DOI: 10.1002/anie.202405062] [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: 03/13/2024] [Revised: 04/22/2024] [Accepted: 05/06/2024] [Indexed: 05/08/2024]
Abstract
Palladium-catalyzed enantioselective C(sp3)-H functionalization reactions has attracted considerable attention due to its ability for the synthesis of enantiomerically enriched molecules and stimulation of novel retrosynthetic disconnections. Understanding the reaction mechanism, especially the stereochemical process of the reaction, is crucial for the rational design of more efficient catalytic systems. Previously, we developed a Pd(II)/sulfoxide-2-hydroxypridine (SOHP) catalytic system for asymmetric C(sp3)-H functionalization reactions. In this study, we focused on unraveling the chemistry of chiral palladacycles involved in the Pd(II)-catalyzed enantioselective C(sp3)-H functionalization. We have isolated key palladacycle intermediates involved in the enantioselective β-C(sp3)-H arylation of carboxylic acids catalyzed by the Pd(II)/SOHP system. These palladacycles, exhibiting ligand-induced chirality, provided a significant opportunity to investigate the stereochemical process and the ligand effect in this asymmetric C-H functionalization. Our investigation provided direct evidence for the C-H palladation step as the enantioselectivity-determining step, which forms diastereomeric palladacycles that exhibited preservation of chirality in the functionalization step. DFT calculations provided insights into the chiral induction in palladacycle formation. This work highlights the value of chiral palladacycle chemistry in offering mechanistic insights into the Pd(II)-catalyzed asymmetric C(sp3)-H functionalization reactions.
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Affiliation(s)
- Chen-Hui Yuan
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xiao-Xia Wang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Keyun Huang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Lei Jiao
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
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2
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Liu CX, Yin SY, Zhao F, Yang H, Feng Z, Gu Q, You SL. Rhodium-Catalyzed Asymmetric C-H Functionalization Reactions. Chem Rev 2023; 123:10079-10134. [PMID: 37527349 DOI: 10.1021/acs.chemrev.3c00149] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
This review summarizes the advancements in rhodium-catalyzed asymmetric C-H functionalization reactions during the last two decades. Parallel to the rapidly developed palladium catalysis, rhodium catalysis has attracted extensive attention because of its unique reactivity and selectivity in asymmetric C-H functionalization reactions. In recent years, Rh-catalyzed asymmetric C-H functionalization reactions have been significantly developed in many respects, including catalyst design, reaction development, mechanistic investigation, and application in the synthesis of complex functional molecules. This review presents an explicit outline of catalysts and ligands, mechanism, the scope of coupling reagents, and applications.
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Affiliation(s)
- Chen-Xu Liu
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Si-Yong Yin
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Fangnuo Zhao
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Hui Yang
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Zuolijun Feng
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Qing Gu
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Shu-Li You
- New Cornerstone Science Laboratory, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
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3
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Bhattacharya T, Baroliya PK, Al-Thabaiti SA, Maiti D. Simplifying the Synthesis of Nonproteinogenic Amino Acids via Palladium-Catalyzed δ-Methyl C-H Olefination of Aliphatic Amines and Amino Acids. JACS AU 2023; 3:1975-1983. [PMID: 37502162 PMCID: PMC10369672 DOI: 10.1021/jacsau.3c00215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 07/29/2023]
Abstract
Transition metal-catalyzed directing group assisted C-H functionalizations provide a straightforward access to a wide variety of nonproteinogenic amino acids. While altering the side chain of an existing natural amino acids is one way, introducing a functional group to an aliphatic amine to synthesize versatile unnatural amino acids is another exciting avenue. In this work, we explore both the possibilities by the palladium-catalyzed δ-C(sp3)-H olefination of aliphatic amines and amino acids. A diverse substrate scope including sequential difunctionalizations followed by post synthetic transformations were achieved to understand the applicability of the current protocol. An in-depth mechanistic study was carried out to learn the mode of the reaction pathway.
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Affiliation(s)
- Trisha Bhattacharya
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
| | - Prabhat Kumar Baroliya
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
- Department
of Chemistry, Mohanlal Sukhadia University, Udaipur 313001, India
| | - Shaeel A. Al-Thabaiti
- Department
of Chemistry, Faculty of Science, King Abdulaziz
University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Debabrata Maiti
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
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4
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Liu M, Sun J, Zhang T, Ding Y, Han Y, Martín‐Montero R, Lan Y, Shi B, Engle KM. Regio- and Stereoselective 1,2-Oxyhalogenation of Non-Conjugated Alkynes via Directed Nucleopalladation: Catalytic Access to Tetrasubstituted Alkenes. Angew Chem Int Ed Engl 2022; 61:e202209099. [PMID: 36082442 PMCID: PMC9588632 DOI: 10.1002/anie.202209099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Indexed: 01/12/2023]
Abstract
A catalytic 1,2-oxyhalogenation method that converts non-conjugated internal alkynes into tetrasubstituted alkenes with high regio- and stereoselectivity is described. Mechanistically, the reaction involves a PdII /PdIV catalytic cycle that begins with a directed oxypalladation step. The origin of regioselectivity is the preference for formation of a six-membered palladacycle intermediate, which is facilitated by an N,N-bidentate 2-(pyridin-2-yl)isopropyl (PIP) amide directing group. Selectivity for C(alkenyl)-X versus -N (X=halide) reductive elimination from the PdIV center depends on the identity of the halide anion; bromide and iodide engage in C(alkenyl)-X formation, while intramolecular C(alkenyl)-N reductive elimination occurs with chloride to furnish a lactam product. DFT calculations shed light on the origins of this phenomenon.
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Affiliation(s)
- Mingyu Liu
- Department of ChemistryThe Scripps Research Institute10550 N. Torrey Pines RoadLa JollaCA 92037USA
| | - Juntao Sun
- Department of ChemistryThe Scripps Research Institute10550 N. Torrey Pines RoadLa JollaCA 92037USA
| | - Tao Zhang
- Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhouHenan450001P. R. China
| | - Yi Ding
- Department of ChemistryZhejiang UniversityHangzhouZhejiang310027P. R. China
| | - Ye‐Qiang Han
- Department of ChemistryZhejiang UniversityHangzhouZhejiang310027P. R. China
| | - Raúl Martín‐Montero
- Department of ChemistryThe Scripps Research Institute10550 N. Torrey Pines RoadLa JollaCA 92037USA
| | - Yu Lan
- Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhouHenan450001P. R. China,School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing UniversityChongqing400030P. R. China
| | - Bing‐Feng Shi
- Department of ChemistryZhejiang UniversityHangzhouZhejiang310027P. R. China
| | - Keary M. Engle
- Department of ChemistryThe Scripps Research Institute10550 N. Torrey Pines RoadLa JollaCA 92037USA
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5
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Liu M, Sun J, Zhang T, Ding Y, Han YQ, Martín-Montero R, Lan Y, Shi BF, Engle KM. Regio‐ and Stereoselective 1,2‐Oxyhalogenation of Non‐ Conjugated Alkynes via Directed Nucleopalladation: Catalytic Access to Tetrasubstituted Alkenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mingyu Liu
- The Scripps Research Institute Chemistry UNITED STATES
| | - Juntao Sun
- The Scripps Research Institute Chemistry UNITED STATES
| | - Tao Zhang
- Zhengzhou University College of Chemistry CHINA
| | - Yi Ding
- Zhejiang University Chemistry UNITED STATES
| | | | | | - Yu Lan
- Zhengzhou University College of Chemistry CHINA
| | | | - Keary Mark Engle
- The Scripps Research Institute Department of Chemistry 10550 N. Torrey Pines Rd. 92037 La Jolla UNITED STATES
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Rigid α-diimine palladium complexes as direct C-H arylation precatalysts for thiophenes and heteroaryl bromides. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Wen Z, Wan T, Vijeta A, Casadevall C, Buglioni L, Reisner E, Noël T. Photocatalytic C-H Azolation of Arenes Using Heterogeneous Carbon Nitride in Batch and Flow. CHEMSUSCHEM 2021; 14:5265-5270. [PMID: 34529334 PMCID: PMC9298336 DOI: 10.1002/cssc.202101767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/16/2021] [Indexed: 05/08/2023]
Abstract
The functionalization of aryl C(sp2 )-H bonds is a useful strategy for the late-stage modification of biologically active molecules, especially for the regioselective introduction of azole heterocycles to prepare medicinally-relevant compounds. Herein, we describe a practical photocatalytic transformation using a mesoporous carbon nitride (mpg-CNx ) photocatalyst, which enables the efficient azolation of various arenes through direct oxidation. The method exhibits a broad substrate scope and is amenable to the late-stage functionalization of several pharmaceuticals. Due to the heterogeneous nature and high photocatalytic stability of mpg-CNx , the catalyst can be easily recovered and reused leading to greener and more sustainable routes, using either batch or flow processing, to prepare these important compounds of interest in pharmaceutical and agrochemical research.
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Affiliation(s)
- Zhenghui Wen
- Flow Chemistry GroupVan't Hoff Institute for Molecular Sciences (HIMS)Universiteit van Amsterdam (UvA)Science Park 9041098 XHAmsterdamThe Netherlands
| | - Ting Wan
- Flow Chemistry GroupVan't Hoff Institute for Molecular Sciences (HIMS)Universiteit van Amsterdam (UvA)Science Park 9041098 XHAmsterdamThe Netherlands
| | - Arjun Vijeta
- Yusuf Hamied Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUnited Kingdom
| | - Carla Casadevall
- Yusuf Hamied Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUnited Kingdom
| | - Laura Buglioni
- Department of Chemical Engineering and ChemistrySustainable Process EngineeringEindhoven University of TechnologyP.O. Box 5135600 MBEindhovenThe Netherlands
| | - Erwin Reisner
- Yusuf Hamied Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUnited Kingdom
| | - Timothy Noël
- Flow Chemistry GroupVan't Hoff Institute for Molecular Sciences (HIMS)Universiteit van Amsterdam (UvA)Science Park 9041098 XHAmsterdamThe Netherlands
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Suseelan Sarala A, Bhowmick S, Carvalho RL, Al‐Thabaiti SA, Mokhtar M, Silva Júnior EN, Maiti D. Transition‐Metal‐Catalyzed Selective Alkynylation of C−H Bonds. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100992] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Anjana Suseelan Sarala
- Department of Chemistry Indian Institute of Technology Bombay Powai 400076 Mumbai India
- Department of Chemistry Saarland University 66123 Saarbrucken Germany
| | - Suman Bhowmick
- Department of Chemistry Indian Institute of Technology Bombay Powai 400076 Mumbai India
| | - Renato L. Carvalho
- Department of Chemistry Federal University of Minas Gerais 31270-901 Belo Horizonte MG Brazil
| | | | - Mohamed Mokhtar
- Chemistry Department Faculty of Science King Abdulaziz University 21589 Jeddah Saudi Arabia
| | | | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay Powai 400076 Mumbai India
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9
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10
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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: 86] [Impact Index Per Article: 28.7] [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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11
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Yang X, Jiang MX, Zhou T, Han YQ, Xu XT, Zhang K, Shi BF. Pd(II)-Catalyzed enantioselective arylation of unbiased methylene C(sp 3)-H bonds enabled by a 3,3'-F 2-BINOL ligand. Chem Commun (Camb) 2021; 57:5562-5565. [PMID: 33969855 DOI: 10.1039/d1cc01690c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Palladium-catalyzed asymmetric functionalization of unbiased methylene C(sp3)-H bonds is a long-standing challenge. Here, we report a Pd(ii)-catalyzed highly enantioselective arylation of unbiased methylene C(sp3)-H bonds enabled by a strongly coordinating bidentate 2-pyridinylisopropyl (PIP) directing group and an easily accessible 3,3'-F2-BINOL chiral ligand. The use of aryl iodides with the combination of 3,3'-F2-BINOL was beneficial for high enantiocontrol. A range of aliphatic amides and aryl iodides were tolerated, providing the desired arylated products in high enantioselectivities (up to 96% ee). The PIP directing group could be removed under mild conditions without erosion of enantiopurity.
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Affiliation(s)
- Xu Yang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Meng-Xue Jiang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Tao Zhou
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China.
| | - Ye-Qiang Han
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China.
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Kun Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China. and College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
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12
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Feng YL, Shi BF. Recent Advances in Base Metal (Copper, Cobalt and Nickel)-Catalyzed Directed C—H Amination. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Manna P, Kundu M, Roy A, Adhikari S. Palladium-catalyzed directed synthesis of ortho-deuterated phenylacetic acid and analogues. Org Biomol Chem 2021; 19:6244-6249. [PMID: 34155489 DOI: 10.1039/d1ob00663k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The synthesis of deuterium-labeled organic compounds is of increased interest, especially after the approval of deutetrabenazine by the Food and Drug Administration in 2014. The selective incorporation of deuterium in the place of hydrogen not only represents uniqueness in terms of a novel chemical class, but it also can improve the pharmacokinetic profiles of drug molecules while retaining potency and other parameters; thus, hydrogen-deuterium (H/D) exchange methods have been proven to be powerful additions in different areas of chemical science. In that regard, metal-catalyzed deuterium labeling via C-H activation mediated by a unique inbuilt directing group (DG) can play a significant role in the synthesis of novel deuterated chemical entities. In this context, herein, we divulge our results relating to Pd(ii)-catalyzed deuterium incorporation (>97%) at the γ C(sp2)-position of pyridone-containing phenylacetic acid derivatives, where 3-amino-1-methyl-1H-pyridin-2-one (AMP) not only acts as an efficient N,O-directing group, but it also constitutes a part of the target molecules of medicinal importance. Our methodology, which has been optimized based on the effects of temperature, catalyst, time, and substrate scope, shows advantages over existing protocols, with non-selectivity or meager deuteration or the use of an expensive metal (catalytic or super stoichiometric) and a deuterated solvent, reported previously for the deuteration of phenylacetic acid and its derivatives. Moreover, towards our aim of synthesizing deuterium-labeled biologically relevant compounds, the gram scale synthesis of a deuterated analogue of biphenyl acetic acid (3), known to have activity against epileptic seizures, has also been successfully accomplished in high yields and with excellent isotope enrichment via implementing this protocol.
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Affiliation(s)
- Priyadarshi Manna
- TCG Lifesciences Pvt. Ltd, BN-7, Sector V, Salt Lake City, Kolkata-700091, India. and Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India.
| | - Mrinalkanti Kundu
- TCG Lifesciences Pvt. Ltd, BN-7, Sector V, Salt Lake City, Kolkata-700091, India.
| | - Ashis Roy
- TCG Lifesciences Pvt. Ltd, BN-7, Sector V, Salt Lake City, Kolkata-700091, India. and Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India.
| | - Susanta Adhikari
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India.
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Cheng HC, Guo PH, Ma JL, Hu XQ. Directing group strategies in catalytic sp2 C–H cyanations: scope, mechanism and limitations. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00241d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Directing group strategy in transition metal catalyzed sp2 C–H bond cyanation has contributed to the direct conversion of hydrocarbons to cyano-containing compounds. Recent developments in transition metal-mediated sp2 C–H bond cyanation using this strategy are reviewed.
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Affiliation(s)
- Hui-cheng Cheng
- College of Chemistry
- Guangdong University of Petrochemical Technology
- Maoming 525000
- PR China
| | - Peng-hu Guo
- College of Chemistry
- Guangdong University of Petrochemical Technology
- Maoming 525000
- PR China
| | - Jiao-li Ma
- College of Chemistry
- Guangdong University of Petrochemical Technology
- Maoming 525000
- PR China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- School of Chemistry and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
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