1
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Mehara J, Anania M, Kočovský P, Roithová J. Competing Mechanisms in Palladium-Catalyzed Alkoxycarbonylation of Styrene. ACS Catal 2024; 14:5710-5719. [PMID: 38660606 PMCID: PMC11036401 DOI: 10.1021/acscatal.4c00966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024]
Abstract
Palladium-catalyzed carbonylation is a versatile method for the synthesis of various aldehydes, esters, lactones, or lactams. Alkoxycarbonylation of alkenes with carbon monoxide and alcohol produces either saturated or unsaturated esters as a result of two distinct catalytic cycles. The existing literature presents an inconsistent account of the procedures favoring oxidative carbonylation products. In this study, we have monitored the intermediates featured in both catalytic cycles of the methoxycarbonylation of styrene PhCH=CH2 as a model substrate, including all short-lived intermediates, using mass spectrometry. Comparing the reaction kinetics of the intermediates in both cycles in the same reaction mixture shows that the reaction proceeding via alkoxy intermediate [PdII]-OR, which gives rise to the unsaturated product PhCH=CHCO2Me, is faster. However, with an advancing reaction time, the gradually changing reaction conditions begin to favor the catalytic cycle dominated by palladium hydride [PdII]-H and alkyl intermediates, affording the saturated products PhCH2CH2CO2Me and PhCH(CO2Me)CH3 preferentially. The role of the oxidant proved to be crucial: using p-benzoquinone results in a gradual decrease of the pH during the reaction, swaying the system from oxidative conditions toward the palladium hydride cycle. By contrast, copper(II) acetate as an oxidant guards the pH within the 5-7 range and facilitates the formation of the alkoxy palladium complex [PdII]-OR, which favors the oxidative reaction producing PhCH=CHCO2Me with high selectivity. Hence, it is the oxidant, rather than the catalyst, that controls the reaction outcome by a mechanistic switch. Unraveling these principles broadens the scope for developing alkoxycarbonylation reactions and their application in organic synthesis.
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Affiliation(s)
- Jaya Mehara
- Department
of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - Mariarosa Anania
- Department
of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
- Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, Prague 2 12843, Czech Republic
| | - Pavel Kočovský
- Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, Prague 2 12843, Czech Republic
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, Flemingovo nám. 2, Prague 6 16610, Czech Republic
| | - Jana Roithová
- Department
of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
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2
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Das A, Waser J. Pd-catalyzed functionalization of alkenes and alkynes using removable tethers. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133135] [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]
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3
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Acceptorless dehydrogenative amination of alkenes for the synthesis of N-heterocycles. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1241-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Kim YH, Kim DB, Jang SS, Youn SW. Pd-Catalyzed Regioselective Intramolecular Allylic C-H Amination of 1,1-Disubstituted Alkenyl Amines. J Org Chem 2022; 87:7574-7580. [PMID: 35549260 DOI: 10.1021/acs.joc.2c00781] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pd-Catalyzed intramolecular allylic C-H amination of 1,1-disubstituted alkenyl amines with various allylic tethers (X = O, NMs, CH2) was developed. This process allows for the divergent synthesis of 1,3-X,N-heterocycles through a regioselective allylic C-H cleavage and π-allylpalladium formation. Particularly noteworthy is the use of substrates containing a labile allylic moiety and new simple catalytic systems capable of promoting highly chemo- and regioselective allylic C-H amination by overcoming significant challenges.
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Affiliation(s)
- Young Ho Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Dong Bin Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Su San Jang
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
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5
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Liu J, Xiao X, Lai Y, Zhang Z. Recent advances in transition metal-catalyzed heteroannulative difunctionalization of alkenes via C-H activation for the synthesis of heterocycles. Org Chem Front 2022. [DOI: 10.1039/d2qo00081d] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterocyclic compounds are the fundamental structural motifs distributed in natural products, pharmaceuticals and biologically active compounds. Thus, there is increasing interest in the development of novel synthetic strategies for the...
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6
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Shinde AH, Thomas AA, Mague JT, Sathyamoorthi S. Highly Regio- and Diastereoselective Tethered Aza-Wacker Cyclizations of Alkenyl Phosphoramidates. J Org Chem 2021; 86:14732-14758. [PMID: 34665630 PMCID: PMC10119688 DOI: 10.1021/acs.joc.1c01483] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We present highly diastereoselective tethered aza-Wacker cyclization reactions of alkenyl phosphoramidates. "Arming" the phosphoramidate tether with 5-chloro-8-quinolinol was essential to achieving >20:1 diastereoselectivity in these reactions. The substrate scope with respect to alkenyl alcohols and phosphoramidate tether was extensively explored. The scalability of the oxidative cyclization was demonstrated, and the product cyclophosphoramidates were shown to be valuable synthons, including for tether removal. With chiral alkenyl precursors, enantiopure cyclic phosphoramidates were formed.
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Affiliation(s)
- Anand H Shinde
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Annu Anna Thomas
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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7
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Wood DP, Guan W, Lin S. Titanium and Cobalt Bimetallic Radical Redox Relay for the Isomerization of N-Bz Aziridines to Allylic Amides. SYNTHESIS-STUTTGART 2021; 53:4213-4220. [PMID: 34764520 PMCID: PMC8579959 DOI: 10.1055/s-0037-1610779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Herein a bimetallic radical redox-relay strategy is employed to generate alkyl radicals under mild conditions with titanium(III) catalysis and terminated via hydrogen atom transfer with cobalt(II) catalysis to enact base-free isomerizations of N-Bz aziridines to N-Bz allylic amides. This reaction provides an alternative strategy for the synthesis of allylic amides from alkenes via a three-step sequence to accomplish a formal transpositional allylic amination.
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Affiliation(s)
- Devin P Wood
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Weiyang Guan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Song Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
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8
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Cai CY, Wu ZJ, Liu JY, Chen M, Song J, Xu HC. Tailored cobalt-salen complexes enable electrocatalytic intramolecular allylic C-H functionalizations. Nat Commun 2021; 12:3745. [PMID: 34145285 PMCID: PMC8213807 DOI: 10.1038/s41467-021-24125-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 06/03/2021] [Indexed: 12/04/2022] Open
Abstract
Oxidative allylic C–H functionalization is a powerful tool to streamline organic synthesis as it minimizes the need for functional group activation and generates alkenyl-substituted products amenable to further chemical modifications. The intramolecular variants can be used to construct functionalized ring structures but remain limited in scope and by their frequent requirement for noble metal catalysts and stoichiometric chemical oxidants. Here we report an oxidant-free, electrocatalytic approach to achieve intramolecular oxidative allylic C–H amination and alkylation by employing tailored cobalt-salen complexes as catalysts. These reactions proceed through a radical mechanism and display broad tolerance of functional groups and alkene substitution patterns, allowing efficient coupling of di-, tri- and even tetrasubstituted alkenes with N- and C-nucleophiles to furnish high-value heterocyclic and carbocyclic structures. Oxidative allylic C–H functionalizations minimise the need for functional group activation and generate alkenyl-substituted products amenable to further chemical modifications. Here the authors report an oxidant-free, electrocatalytic approach to achieve intramolecular oxidative allylic C–H amination and alkylation by employing tailored cobalt-salen complexes as catalysts.
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Affiliation(s)
- Chen-Yan Cai
- Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Zheng-Jian Wu
- Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Ji-Ying Liu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Ming Chen
- Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Jinshuai Song
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Hai-Chao Xu
- Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China.
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9
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Huang C, Li Z, Song J, Xu H. Catalyst‐ and Reagent‐Free Formal Aza‐Wacker Cyclizations Enabled by Continuous‐Flow Electrochemistry. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101835] [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)
- Chong Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Zhao‐Yu Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Jinshuai Song
- Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Hai‐Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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10
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Huang C, Li ZY, Song J, Xu HC. Catalyst- and Reagent-Free Formal Aza-Wacker Cyclizations Enabled by Continuous-Flow Electrochemistry. Angew Chem Int Ed Engl 2021; 60:11237-11241. [PMID: 33666312 DOI: 10.1002/anie.202101835] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/22/2021] [Indexed: 12/18/2022]
Abstract
The development of efficient and sustainable methods to access saturated N-heterocycles is of great importance because of the prevalence of these structures in natural products and bioactive compounds. Pd-catalyzed aza-Wacker type cyclization is a powerful method and provides access to N-heterocycles bearing an alkene moiety available for further synthetic manipulations from readily available materials. Herein we disclose a catalyst- and reagent-free formal aza-Wacker type cyclization reaction for the synthesis of functionalized saturated N-heterocycles. Key to the success is to conduct the reactions in a continuous-flow electrochemical reactor without adding supporting electrolyte or additives. The reactions are characterized by broad tolerance of di-, tri- and tetrasubstituted alkenes.
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Affiliation(s)
- Chong Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Zhao-Yu Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jinshuai Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Hai-Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
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11
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Barboza AA, Neto AC, Rosset IG, Jardim GAM, Ferreira MAB. Synthesis of 3-Carbonyl Trisubstituted Furans via Pd-Catalyzed Aerobic Cycloisomerization Reaction: Development and Mechanistic Studies. J Org Chem 2021; 86:3923-3942. [PMID: 33625861 DOI: 10.1021/acs.joc.0c02777] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Herein, we report the synthesis of 3-carbonyl-trisubstituted furans via Pd-catalyzed oxidative cycloisomerization reactions of 2-alkenyl-1,3-dicarbonyl scaffolds, using molecular oxygen as the sole oxidant to regenerate active palladium catalytic species, featuring good functional tolerance and mild reaction conditions. Deep investigation of intermediates and transition states of the reaction mechanism were conducted via experimental and DFT studies, providing a detailed mechanistical profile. The new developed methodology presents a greener alternative to Wacker-type cycloisomerizations and avoids the use of stoichiometric amounts of oxidants and strong acid additives.
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Affiliation(s)
- Amanda A Barboza
- Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo 13565-905, Brazil
| | - Attilio Chiavegatti Neto
- Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo 13565-905, Brazil
| | - Isac G Rosset
- Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo 13565-905, Brazil.,Universidade Federal do Paraná - Departamento de Engenharias e Exatas, Rua Pioneiro, 2153, Jd. Dallas, Palotina, Paraná 85950-000, Brazil
| | - Guilherme A M Jardim
- Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo 13565-905, Brazil
| | - Marco A B Ferreira
- Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo 13565-905, Brazil
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12
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Jun JJ, Xie X. Implementation of Diverse Synthetic and Strategic Approaches to Biologically Active Sulfamides. ChemistrySelect 2021. [DOI: 10.1002/slct.202004765] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jaden J. Jun
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center School of Pharmacy 335 Sutherland Drive 206 Salk Pavilion University of Pittsburgh Pittsburgh PA15261 USA
- NIH National Center of Excellence for Computational Drug Abuse Research
- Drug Discovery Institute
| | - Xiang‐Qun Xie
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center School of Pharmacy 335 Sutherland Drive 206 Salk Pavilion University of Pittsburgh Pittsburgh PA15261 USA
- NIH National Center of Excellence for Computational Drug Abuse Research
- Drug Discovery Institute
- Departments of Computational Biology and Structural Biology Director of CCGS and NIDA CDAR Centers School of Medicine University of Pittsburgh Pittsburgh Pennsylvania 15261 United States
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13
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Dai L, Yu S, Shao Y, Li R, Chen Z, Lv N, Chen J. Palladium-catalyzed C-H activation of simple arenes and cascade reaction with nitriles: access to 2,4,5-trisubstituted oxazoles. Chem Commun (Camb) 2021; 57:1376-1379. [PMID: 33433549 DOI: 10.1039/d0cc07547g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient and straightforward protocol for the assembly of the pharmaceutically and biologically valuable oxazole skeleton is achieved for the first time from readily available simple arenes and functionalized aliphatic nitriles. This transformation involves palladium-catalyzed C-H activation, carbopalladation and a tandem annulation sequence in one pot. Notably, the reaction proceeds efficiently under redox-neutral conditions, and exhibits high atom-economy. Deuterium-labeling experiments suggested that C-H bond cleavage of the simple arenes might be the rate-determining step.
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Affiliation(s)
- Ling Dai
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China.
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14
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Manna K, Begam HM, Samanta K, Jana R. Overcoming the Deallylation Problem: Palladium(II)-Catalyzed Chemo-, Regio-, and Stereoselective Allylic Oxidation of Aryl Allyl Ether, Amine, and Amino Acids. Org Lett 2020; 22:7443-7449. [PMID: 32955263 DOI: 10.1021/acs.orglett.0c02465] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report herein a Pd(II)/bis-sulfoxide-catalyzed intramolecular allylic C-H acetoxylation of aryl allyl ether, amine, and amino acids with the retention of a labile allyl moiety. Mechanistically, the reaction proceeds through a distinct double-bond isomerization from the allylic to the vinylic position followed by intramolecular carboxypalladation and the β-hydride elimination pathway. For the first time, C-H oxidation of N-allyl-protected amino acids to furnish five-membered heterocycles through 1,3-syn-addition is established with excellent diastereoselectivity.
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Affiliation(s)
- Kartic Manna
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Hasina Mamataj Begam
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
| | - Krishanu Samanta
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Ranjan Jana
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
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15
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Thomas AA, Nagamalla S, Sathyamoorthi S. Salient features of the aza-Wacker cyclization reaction. Chem Sci 2020; 11:8073-8088. [PMID: 34123081 PMCID: PMC8163389 DOI: 10.1039/d0sc02554b] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/20/2020] [Indexed: 11/23/2022] Open
Abstract
The intramolecular aza-Wacker reaction has unparalleled potential for the site-selective amination of olefins, but it is perhaps underappreciated relative to other alkene oxidations. The first part of this review makes the distinction between classical and tethered aza-Wacker cyclization reactions and summarizes examples of the latter. The second portion focuses on developments in asymmetric aza-Wacker cyclization technology. The final part of the review summarizes applications of all classes of aza-Wacker cyclization reactions to natural product assembly.
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Affiliation(s)
- Annu Anna Thomas
- Department of Medicinal Chemistry, University of Kansas Lawrence KS USA
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16
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Sun M, Chen W, Xia X, Shen G, Ma Y, Yang J, Ding H, Wang Z. Palladium-Catalyzed Tandem Dehydrogenative [4 + 2] Annulation of Terminal Olefins with N-Sulfonyl Amides via C–H Activations. Org Lett 2020; 22:3229-3233. [DOI: 10.1021/acs.orglett.0c01011] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Manman Sun
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Weida Chen
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Xiangyu Xia
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Guodong Shen
- School of Chemistry and Chemical Engineering, School of Pharmacy, Liaocheng University, Liaocheng 252000, P. R. China
| | - Yongmin Ma
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Jianguo Yang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China
| | - Zhiming Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
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17
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Synthesis of Functionalized Indoles via Palladium-Catalyzed Cyclization of N-(2-allylphenyl) Benzamide: A Method for Synthesis of Indomethacin Precursor. Molecules 2020; 25:molecules25051233. [PMID: 32182955 PMCID: PMC7179414 DOI: 10.3390/molecules25051233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 11/27/2022] Open
Abstract
We developed an efficient method for synthesis of substituted N-benzoylindole via Pd(II)-catalyzed C–H functionalization of substituted N-(2-allylphenyl)benzamide. The reaction showed a broad substrate scope (including N-acetyl and N-Ts substrates) and substituted indoles were obtained in good to excellent yields. The most distinctive feature of this method lies in the high selectivity for N-benzoylindole over benzoxazine, and this is the first example of Pd(II)-catalyzed synthesis of substituted N-benzoylindole. Notably, this new method was applied for the synthesis of key intermediate of indomethacin.
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18
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Abstract
This communication discloses the first examples of aza-Wacker cyclizations of sulfamate esters. Within the realm of related cyclization reactions, this protocol is differential in that it forms six-membered rings in good yield and uses catalytic amounts of palladium(0) rather than palladium(II) salts. These reactions scale well, and their products are demonstrated to be valuable synthetic intermediates.
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Affiliation(s)
- Anand H. Shinde
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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19
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Babij NR, Boothe JR, McKenna GM, Fornwald RM, Wolfe JP. Stereocontrolled synthesis of bicyclic ureas and sulfamides via Pd-catalyzed alkene carboamination reactions. Tetrahedron 2019; 75:4228-4243. [PMID: 31866698 DOI: 10.1016/j.tet.2019.04.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The synthesis of bicyclic ureas and sulfamides via palladium-catalyzed alkene carboamination reactions between aryl/alkenyl halides/triflates and alkenes bearing pendant cyclic sulfamides and ureas is described. The substrates for these reactions are generated in 3-5 steps from commercially available materials, and products are obtained in good yield with up to >20:1 diastereoselectivity. The stereochemical outcome of the sulfamide alkene addition is consistent with a mechanism involving anti-aminopalladation of the alkene, whereas the stereochemical outcome of the urea alkene addition is consistent with a syn-aminopalladation mechanism.
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Affiliation(s)
- Nicholas R Babij
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI, 48109-1055, USA
| | - Jordan R Boothe
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI, 48109-1055, USA
| | - Grace M McKenna
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI, 48109-1055, USA
| | - Ryan M Fornwald
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI, 48109-1055, USA
| | - John P Wolfe
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI, 48109-1055, USA
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20
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Liu Y, Yang Y, Wang C, Wang Z, You J. Rhodium(iii)-catalyzed regioselective oxidative annulation of anilines and allylbenzenes via C(sp3)–H/C(sp2)–H bond cleavage. Chem Commun (Camb) 2019; 55:1068-1071. [DOI: 10.1039/c8cc09099h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
As a proof-of-concept, we disclose the rhodium-catalyzed oxidative annulation of anilines with allylbenzenes to afford a variety of indoles, in which the allylic C(sp3)–H activation and directed C(sp2)–H activation are merged into a single approach for the first time.
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Affiliation(s)
- Yunqi Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- 29 Wangjiang Road
- Chengdu 610064
| | - Yudong Yang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- 29 Wangjiang Road
- Chengdu 610064
| | - Chunxia Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- 29 Wangjiang Road
- Chengdu 610064
| | - Zhishuo Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- 29 Wangjiang Road
- Chengdu 610064
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- 29 Wangjiang Road
- Chengdu 610064
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21
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Liu M, Zhang Z, Shen X, Liu H, Zhang P, Chen B, Han B. Stepwise degradation of hydroxyl compounds to aldehydes via successive C–C bond cleavage. Chem Commun (Camb) 2019; 55:925-928. [DOI: 10.1039/c8cc09504c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Stepwise degradation of hydroxyl compounds to aldehydes via successive cleavage of C–C bonds was achieved by using a bimetallic catalytic system (PdCl2 + CuCl) without any ligands and additives.
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Affiliation(s)
- Mingyang Liu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid and Interface and Thermodynamics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Zhanrong Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid and Interface and Thermodynamics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Xiaojun Shen
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid and Interface and Thermodynamics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid and Interface and Thermodynamics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Pei Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid and Interface and Thermodynamics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Bingfeng Chen
- University of Chinese Academy of Sciences
- Beijing 100049
- P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid and Interface and Thermodynamics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
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22
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Ogiwara Y, Suzuki Y, Sato K, Sakai N. Construction of N-Heterocyclic Systems Containing a Fully Substituted Allylic Carbon by Palladium/Phosphine Catalysis. Org Lett 2018; 20:6965-6969. [PMID: 30351960 DOI: 10.1021/acs.orglett.8b03127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The unique cyclization of benzamide derivatives that contain an alkyne by a Pd(0)/dialkyl(biaryl)phosphine catalytic system is reported. The reaction efficiently provides a variety of six-membered N-heterocyclic compounds that contain a fully substituted carbon center without the need for a stoichiometric additive. Mechanistic studies suggest that this unprecedented cyclization starts with the cleavage of a propargylic C-O bond, and a 1,3-diene has been identified as a relevant intermediate.
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Affiliation(s)
- Yohei Ogiwara
- Department of Pure and Applied Chemistry, Faculty of Science and Technology , Tokyo University of Science , Noda , Chiba 278-8510 , Japan
| | - Yui Suzuki
- Department of Pure and Applied Chemistry, Faculty of Science and Technology , Tokyo University of Science , Noda , Chiba 278-8510 , Japan
| | - Kazuya Sato
- Department of Pure and Applied Chemistry, Faculty of Science and Technology , Tokyo University of Science , Noda , Chiba 278-8510 , Japan
| | - Norio Sakai
- Department of Pure and Applied Chemistry, Faculty of Science and Technology , Tokyo University of Science , Noda , Chiba 278-8510 , Japan
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23
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Wang D, Weinstein AB, White PB, Stahl SS. Ligand-Promoted Palladium-Catalyzed Aerobic Oxidation Reactions. Chem Rev 2017; 118:2636-2679. [PMID: 28975795 DOI: 10.1021/acs.chemrev.7b00334] [Citation(s) in RCA: 368] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Palladium-catalyzed aerobic oxidation reactions have been the focus of industrial application and extensive research efforts for nearly 60 years. A significant transition occurred in this field approximately 20 years ago, with the introduction of catalysts supported by ancillary ligands. The ligands play crucial roles in the reactions, including promotion of direct oxidation of palladium(0) by O2, bypassing the typical requirement for Cu salts or related redox cocatalysts to facilitate oxidation of the reduced Pd catalyst; facilitation of key bond-breaking and bond-forming steps during substrate oxidation; and modulation of chemo-, regio-, or stereoselectivity of a reaction. The use of ligands has contributed to significant expansion of the scope of accessible aerobic oxidation reactions. Increased understanding of the role of ancillary ligands should promote the development of new synthetic transformations, enable improved control over the reaction selectivity, and improve catalyst activity and stability. This review surveys the different ligands that have been used to support palladium-catalyzed aerobic oxidation reactions and, where possible, describes mechanistic insights into the role played by the ancillary ligand.
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Affiliation(s)
- Dian Wang
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Adam B Weinstein
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Paul B White
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Shannon S Stahl
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
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24
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Xiong P, Xu HH, Xu HC. Metal- and Reagent-Free Intramolecular Oxidative Amination of Tri- and Tetrasubstituted Alkenes. J Am Chem Soc 2017; 139:2956-2959. [PMID: 28199102 DOI: 10.1021/jacs.7b01016] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A metal- and reagent-free, electrochemical intramolecular oxidative amination reaction of tri- and tetrasubstituted alkenes has been developed. The electrosynthetic method proceeds through radical cyclization to form the key C-N bond, allowing a variety of hindered tri- and tetrasubstituted olefins to participate in the amination reaction. The result is the efficient synthesis of a host of alkene-bearing cyclic carbamates and ureas and lactams.
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Affiliation(s)
- Peng Xiong
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
| | - He-Huan Xu
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
| | - Hai-Chao Xu
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
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25
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Orcel U, Waser J. In situ tether formation from amines and alcohols enabling highly selective Tsuji-Trost allylation and olefin functionalization. Chem Sci 2017; 8:32-39. [PMID: 28451147 PMCID: PMC5304619 DOI: 10.1039/c6sc04366f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/02/2016] [Indexed: 01/01/2023] Open
Abstract
The use of tethers allows to overcome reactivity and selectivity issues often encountered with intermolecular reactions. Although tethers have been successfully applied for decades, their installation and removal usually requires additional steps. This minireview highlights the recent development of tethers that can be installed in situ on (homo)-allyl amines or alcohols for Tsuji-Trost allylation or double bond functionalization. In particular, the use of (hemi-)acetal tethers for highly regioselective and enantioselective Tsuji-Trost allylation was recently reported. Hydroamination of olefins starting from allylic amines could be achieved via a retro Cope-elimination using catalytic amount of an aldehyde for tether formation. Finally, bifunctionalizations of olefins were developed using either carbon dioxide or carbonyls/imines as tether precursors. These recent breakthroughs greatly enhanced the efficiency of the tethering approach for olefin functionalization, and will make it even more attractive for synthetic chemists in the future.
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Affiliation(s)
- Ugo Orcel
- Laboratory of Catalysis and Organic Synthesis , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSO , BCH 4306 , 1015 Lausanne , Switzerland .
| | - Jérôme Waser
- Laboratory of Catalysis and Organic Synthesis , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSO , BCH 4306 , 1015 Lausanne , Switzerland .
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26
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Maiti S, Burgula L, Chakraborti G, Dash J. Palladium-Catalyzed Pyridine-Directed Regioselective Oxidative C-H Acylation of Carbazoles by Using Aldehydes as the Acyl Source. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601322] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Subhadip Maiti
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; Jadavpur 700032 Kolkata India
| | - Laxminarayana Burgula
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; Jadavpur 700032 Kolkata India
| | - Gargi Chakraborti
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; Jadavpur 700032 Kolkata India
| | - Jyotirmayee Dash
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; Jadavpur 700032 Kolkata India
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27
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Orcel U, Waser J. One-Pot Three-Component Synthesis of Vicinal Diamines via In Situ Aminal Formation and Carboamination. Angew Chem Int Ed Engl 2016; 55:12881-5. [DOI: 10.1002/anie.201607318] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Ugo Orcel
- Institut des sciences et ingénierie chimiques; Ecole Polytechnique Fédérale de Lausanne; EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Jerome Waser
- Institut des sciences et ingénierie chimiques; Ecole Polytechnique Fédérale de Lausanne; EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
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28
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Orcel U, Waser J. One-Pot Three-Component Synthesis of Vicinal Diamines via In Situ Aminal Formation and Carboamination. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607318] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ugo Orcel
- Institut des sciences et ingénierie chimiques; Ecole Polytechnique Fédérale de Lausanne; EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Jerome Waser
- Institut des sciences et ingénierie chimiques; Ecole Polytechnique Fédérale de Lausanne; EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
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29
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Jiang H, Lang K, Lu H, Wojtas L, Zhang XP. Intramolecular Radical Aziridination of Allylic Sulfamoyl Azides by Cobalt(II)-Based Metalloradical Catalysis: Effective Construction of Strained Heterobicyclic Structures. Angew Chem Int Ed Engl 2016; 55:11604-8. [PMID: 27511474 PMCID: PMC5014589 DOI: 10.1002/anie.201605238] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Revised: 06/25/2016] [Indexed: 01/05/2023]
Abstract
Cobalt(II)-based metalloradical catalysis (MRC) has been successfully applied for effective construction of the highly strained 2-sulfonyl-1,3-diazabicyclo[3.1.0]hexane structures in high yields through intramolecular radical aziridination of allylic sulfamoyl azides. The resulting [3.1.0] bicyclic aziridines prove to be versatile synthons for the preparation of a diverse range of 1,2- and 1,3-diamine derivatives by selective ring-opening reactions. As a demonstration of its application for target synthesis, the metalloradical intramolecular aziridination reaction has been incorporated as a key step for efficient synthesis of a potent neurokinin 1 (NK1 ) antagonist in 60 % overall yield.
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Affiliation(s)
- Huiling Jiang
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Kai Lang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts, 02467, USA
| | - Hongjian Lu
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
- The Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing, 210093, P.R. China
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - X Peter Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts, 02467, USA.
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA.
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30
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Jiang H, Lang K, Lu H, Wojtas L, Zhang XP. Intramolecular Radical Aziridination of Allylic Sulfamoyl Azides by Cobalt(II)‐Based Metalloradical Catalysis: Effective Construction of Strained Heterobicyclic Structures. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605238] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Huiling Jiang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Kai Lang
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill Massachusetts 02467 USA
| | - Hongjian Lu
- Department of Chemistry University of South Florida Tampa FL 33620 USA
- The Institute of Chemistry & Biomedical Sciences Nanjing University Nanjing 210093 P.R. China
| | - Lukasz Wojtas
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - X. Peter Zhang
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill Massachusetts 02467 USA
- Department of Chemistry University of South Florida Tampa FL 33620 USA
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31
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32
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Lu H, Lang K, Jiang H, Wojtas L, Zhang XP. Intramolecular 1,5-C(sp 3)-H Radical Amination via Co(II)-Based Metalloradical Catalysis for Five-Membered Cyclic Sulfamides. Chem Sci 2016; 7:6934-6939. [PMID: 28138382 PMCID: PMC5271564 DOI: 10.1039/c6sc02231f] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Synthesis of strained five-membered cyclic sulfamides has been achieved for the first time by intramolecular 1,5-C(sp3)–H amination via Co(ii)-based metalloradical catalysis.
Co(ii)-based metalloradical catalysis (MRC) proves effective for intramolecular 1,5-C–H amination of sulfamoyl azides under neutral and nonoxidative conditions, providing a straightforward approach to access strained 5-membered cyclic sulfamides with nitrogen gas as the only byproduct. The metalloradical amination system is applicable to different types of C(sp3)–H bonds and has a high degree of functional group tolerance. Additional features of the Co(ii)-catalyzed 1,5-C–H amination include excellent chemoselectivity toward allylic and propargylic C–H bonds. The unique reactivity and selectivity profile of the Co(ii)-catalyzed 1,5-C–H amination is attributed to the underlying radical mechanism of MRC.
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Affiliation(s)
- Hongjian Lu
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.; The Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing, 210093, P. R. China
| | - Kai Lang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA; Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Huiling Jiang
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - X Peter Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA; Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
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33
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Ciesielski J, Dequirez G, Retailleau P, Gandon V, Dauban P. Rhodium-Catalyzed Alkene Difunctionalization with Nitrenes. Chemistry 2016; 22:9338-47. [DOI: 10.1002/chem.201600393] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Indexed: 02/01/2023]
Affiliation(s)
- Jennifer Ciesielski
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Université Paris-Sud, Université Paris-Saclay, 1; av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Geoffroy Dequirez
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Université Paris-Sud, Université Paris-Saclay, 1; av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Université Paris-Sud, Université Paris-Saclay, 1; av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Vincent Gandon
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Université Paris-Sud, Université Paris-Saclay, 1; av. de la Terrasse 91198 Gif-sur-Yvette France
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182; Université Paris-Sud, Université Paris-Saclay; bâtiment 420 91405 Orsay CEDEX France
| | - Philippe Dauban
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Université Paris-Sud, Université Paris-Saclay, 1; av. de la Terrasse 91198 Gif-sur-Yvette France
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34
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Garlets ZJ, Parenti KR, Wolfe JP. Asymmetric Palladium-Catalyzed Alkene Carboamination Reactions for the Synthesis of Cyclic Sulfamides. Chemistry 2016; 22:5919-22. [PMID: 26968748 PMCID: PMC4932835 DOI: 10.1002/chem.201600887] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Indexed: 01/16/2023]
Abstract
The synthesis of cyclic sulfamides by enantioselective Pd-catalyzed alkene carboamination reactions between N-allylsulfamides and aryl or alkenyl bromides is described. High levels of asymmetric induction (up to 95:5 e.r.) are achieved using a catalyst composed of [Pd2 (dba)3 ] and (S)-Siphos-PE. Deuterium-labelling studies indicate the reactions proceed through syn-aminopalladation of the alkene and suggest that the control of syn- versus anti-aminopalladation pathways is important for asymmetric induction.
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Affiliation(s)
- Zachary J Garlets
- Department of Chemistry, University of Michigan, 930. N. University Ave., Ann Arbor, MI, 48109-1055, USA
| | - Kaia R Parenti
- Department of Chemistry, University of Michigan, 930. N. University Ave., Ann Arbor, MI, 48109-1055, USA
| | - John P Wolfe
- Department of Chemistry, University of Michigan, 930. N. University Ave., Ann Arbor, MI, 48109-1055, USA.
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35
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Xiong P, Xu F, Qian XY, Yohannes Y, Song J, Lu X, Xu HC. Copper-Catalyzed Intramolecular Oxidative Amination of Unactivated Internal Alkenes. Chemistry 2016; 22:4379-83. [PMID: 26878987 DOI: 10.1002/chem.201600329] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Indexed: 12/30/2022]
Abstract
A copper-catalyzed oxidative amination of unactivated internal alkenes has been developed. The Wacker-type oxidative alkene amination reaction is traditionally catalyzed by a palladium through a mechanism involving aminopalladation and β-hydride elimination. Replacing the precious and scarce palladium with a cheap and abundant copper for this transformation has been challenging because of the difficulty associated with the aminocupration of internal alkenes. The combination of a simple copper salt, without additional ligand, as the catalyst and Dess-Martin periodinane as the oxidant, promotes efficiently the oxidative amination of allylic carbamates and ureas bearing di- and trisubstituted alkenes leading to oxazolidinones and imidazolidinones. Preliminary mechanistic studies suggested a hybrid radical-organometallic mechanism involving an amidyl radical cyclization to form the key C-N bond.
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Affiliation(s)
- Peng Xiong
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China
| | - Fan Xu
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China
| | - Xiang-Yang Qian
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China
| | - Yared Yohannes
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China
| | - Jinshuai Song
- Fujian Institute of Research on Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Xin Lu
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China.
| | - Hai-Chao Xu
- Collaborative Innovation Center of Chemistry for Energy Material, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen, 361005, P. R. China.
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36
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Liu XW, Shi JL, Wei JB, Yang C, Yan JX, Peng K, Dai L, Li CG, Wang BQ, Shi ZJ. Diversified syntheses of multifunctionalized thiazole derivatives via regioselective and programmed C-H activation. Chem Commun (Camb) 2016; 51:4599-602. [PMID: 25687354 DOI: 10.1039/c4cc10419f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The sequential construction of diversified multifunctionalized thiazole derivatives through Pd-catalyzed regioselective C-H alkenylation has been accomplished. This versatile approach provides the diversified thiazole derivatives featuring orthogonal substitution patterns at the C-2, C-4 and C-5 positions from mono-substituted (2- or 4-substituted) thiazole derivatives or even more challenging simple thiazole.
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Affiliation(s)
- Xiang-Wei Liu
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China.
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37
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Zhang C, Santiago CB, Crawford JM, Sigman MS. Enantioselective Dehydrogenative Heck Arylations of Trisubstituted Alkenes with Indoles to Construct Quaternary Stereocenters. J Am Chem Soc 2015; 137:15668-71. [PMID: 26624236 DOI: 10.1021/jacs.5b11335] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An enantioselective, intermolecular dehydrogenative Heck arylation of trisubstituted alkenes to construct remote quaternary stereocenters has been developed. Using a new chiral pyridine oxazoline ligand, good to high enantioselectivity is achieved for various combinations of indole derivatives and trisubstituted alkenes. However, some combinations of substrates led to lower enantioselectivity, which provided the impetus to use structure enantioselectivity correlations to design a better performing ligand.
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Affiliation(s)
- Chun Zhang
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Celine B Santiago
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Jennifer M Crawford
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Matthew S Sigman
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
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38
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Kim KW, Kim YJ, Lim HJ, Lee SW. Pd(II) Trifluoroacetate Complexes Containing Chelating Phosphine Ligands: Synthesis, Structures, and Catalysis. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10590] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Kun-Woo Kim
- Department of Chemistry; Kangnung-Wonju National University; Gangneung 210-702 Korea
| | - Yong-Joo Kim
- Department of Chemistry; Kangnung-Wonju National University; Gangneung 210-702 Korea
| | - Hye Jin Lim
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | - Soon W. Lee
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
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39
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Kaur N. Palladium-Catalyzed Approach to the Synthesis ofS-heterocycles. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2015. [DOI: 10.1080/01614940.2015.1082824] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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40
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Sipos G, Drinkel EE, Dorta R. The emergence of sulfoxides as efficient ligands in transition metal catalysis. Chem Soc Rev 2015; 44:3834-60. [PMID: 25954773 DOI: 10.1039/c4cs00524d] [Citation(s) in RCA: 169] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Sulfoxides are capable of forming stable complexes with transition metals and there have been many comprehensive studies into their binding properties. However, the use of sulfoxides, particularly chiral sulfoxides, as ligands in transition metal catalysis is rather less well developed. This review aims to describe these catalytic studies and covers new developments that are showing very promising results and that have led to a renewed interest in this field.
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Affiliation(s)
- Gellért Sipos
- School of Chemistry and Biochemistry, University of Western Australia, 35 Stirling Highway, 6009, Crawley, Australia.
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41
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Zhang C, Santiago CB, Kou L, Sigman MS. Alkenyl carbonyl derivatives in enantioselective redox relay Heck reactions: accessing α,β-unsaturated systems. J Am Chem Soc 2015; 137:7290-3. [PMID: 26030059 PMCID: PMC4785797 DOI: 10.1021/jacs.5b04289] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A highly enantioselective and site-selective Pd-catalyzed arylation of alkenes linked to carbonyl derivatives to yield α,β-unsaturated systems is reported. The high site selectivity is attributed to both a solvent effect and the polarized nature of the carbonyl group, both of which have been analyzed through multidimensional analysis tools. The reaction can be performed in an iterative fashion allowing for a diastereoselective installation of two aryl groups along an alkyl chain.
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Affiliation(s)
- Chun Zhang
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Celine B. Santiago
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Lei Kou
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
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42
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Nishikawa Y, Kimura S, Kato Y, Yamazaki N, Hara O. Pd(II)-Catalyzed Allylic C–H Amination for the Preparation of 1,2- and 1,3-Cyclic Ureas. Org Lett 2015; 17:888-91. [DOI: 10.1021/ol5037453] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yasuhiro Nishikawa
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Seikou Kimura
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Yuri Kato
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Natsuka Yamazaki
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Osamu Hara
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
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43
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Kočovský P, Bäckvall JE. The syn/anti-dichotomy in the palladium-catalyzed addition of nucleophiles to alkenes. Chemistry 2015; 21:36-56. [PMID: 25378278 PMCID: PMC4471584 DOI: 10.1002/chem.201404070] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In this review the stereochemistry of palladium-catalyzed addition of nucleophiles to alkenes is discussed, and examples of these reactions in organic synthesis are given. Most of the reactions discussed involve oxygen and nitrogen nucleophiles; the Wacker oxidation of ethylene has been reviewed in detail. An anti-hydroxypalladation in the Wacker oxidation has strong support from both experimental and computational studies. From the reviewed material it is clear that anti-addition of oxygen and nitrogen nucleophiles is strongly favored in intermolecular addition to olefin-palladium complexes even if the nucleophile is coordinated to the metal. On the other hand, syn-addition is common in the case of intramolecular oxy- and amidopalladation as a result of the initial coordination of the internal nucleophile to the metal.
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Affiliation(s)
- Pavel Kočovský
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691 Stockholm (Sweden)
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Department of Organic Chemistry, Charles UniversityFlemingovo nám. 2, 16610 Prague 6 (Czech Republic), Hlavova 8 12843 Prague 2 (Czech Republic)
| | - Jan-E Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691 Stockholm (Sweden)
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44
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Pd-catalyzed intramolecular aminofluorination of allylic sulfamides. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(14)60164-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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45
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Zhang Z, Hashiguchi T, Ishida T, Hamasaki A, Honma T, Ohashi H, Yokoyama T, Tokunaga M. Aerobic oxidation of cyclohexanones to phenols and aryl ethers over supported Pd catalysts. Org Chem Front 2015. [DOI: 10.1039/c4qo00354c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
ZrO2 supported palladium catalysts promoted the aerobic oxidation of cyclohexanones to give phenols and aryl ethers.
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Affiliation(s)
- Zhenzhong Zhang
- Department of Chemistry
- Graduate School of Sciences
- Kyushu University
- Fukuoka 812-8581
- Japan
| | - Taishin Hashiguchi
- Department of Chemistry
- Graduate School of Sciences
- Kyushu University
- Fukuoka 812-8581
- Japan
| | - Tamao Ishida
- Research Center for Gold Chemistry
- Graduate School of Urban Environmental Sciences
- Tokyo Metropolitan University
- Tokyo 192-0397
- Japan
| | - Akiyuki Hamasaki
- Department of Chemistry
- Graduate School of Sciences
- Kyushu University
- Fukuoka 812-8581
- Japan
| | - Tetsuo Honma
- Japan Synchrotron Radiation Research Institute (JASRI/SPring-8)
- Hyogo 679-5198
- Japan
| | - Hironori Ohashi
- Faculty of Arts and Science
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Takushi Yokoyama
- Department of Chemistry
- Graduate School of Sciences
- Kyushu University
- Fukuoka 812-8581
- Japan
| | - Makoto Tokunaga
- Department of Chemistry
- Graduate School of Sciences
- Kyushu University
- Fukuoka 812-8581
- Japan
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46
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Abstract
![]()
The synthesis of
1,2-diamines has been achieved through a single-step,
tandem sequence involving Rh-catalyzed aziridination followed by NaI-promoted
rearrangement to an isomeric cyclic sulfamide. Facile ring opening
of these products in hot water and pyridine affords differentially
protected vicinal diamines. Demonstration of the utility of this method
for the syntheses of (±)-enduracididine and (±)-allo-enduracididine
is highlighted.
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Affiliation(s)
- David E Olson
- Department of Chemistry, Stanford University , Stanford, California 94305-5080, United States
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47
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Su Y, Zhou H, Chen J, Xu J, Wu X, Lin A, Yao H. Solvent-Controlled Switchable C–H Alkenylation of 4-Aryl-1H-pyrrole-3-carboxylates: Application to the Total Synthesis of (±)-Rhazinilam. Org Lett 2014; 16:4884-7. [DOI: 10.1021/ol5023933] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Youla Su
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Haipin Zhou
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jiaxuan Chen
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jinyi Xu
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Xiaoming Wu
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
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48
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Fornwald RM, Fritz JA, Wolfe JP. Influence of catalyst structure and reaction conditions on anti- versus syn-aminopalladation pathways in Pd-catalyzed alkene carboamination reactions of N-allylsulfamides. Chemistry 2014; 20:8782-90. [PMID: 24938206 DOI: 10.1002/chem.201402258] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Indexed: 11/11/2022]
Abstract
The Pd-catalyzed coupling of N-allylsulfamides with aryl and alkenyl triflates to afford cyclic sulfamide products is described. In contrast to other known Pd-catalyzed alkene carboamination reactions, these transformations may be selectively induced to occur by way of either anti- or syn-aminopalladation mechanistic pathways by modifying the catalyst structure and reaction conditions.
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Affiliation(s)
- Ryan M Fornwald
- Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, MI 48109-1055 (USA)
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49
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Malkov AV, Lee DS, Barłóg M, Elsegood MRJ, Kočovský P. Palladium-Catalyzed Stereoselective Intramolecular Oxidative Amidation of Alkenes in the Synthesis of 1,3- and 1,4-Amino Alcohols and 1,3-Diamines. Chemistry 2014; 20:4901-5. [DOI: 10.1002/chem.201400123] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Indexed: 11/11/2022]
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50
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Xu K, Thieme N, Breit B. Atom-Economic, Regiodivergent, and Stereoselective Coupling of Imidazole Derivatives with Terminal Allenes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309126] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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