1
|
Wang Y, Shi S, Zhang W, Nian Y, Wu X. Rhodium-Catalyzed Diastereoselective C-H Activation/[4 + 2] Annulation of α,β-Unsaturated Amides with Bicyclic Alkenes. Org Lett 2024. [PMID: 38197743 DOI: 10.1021/acs.orglett.3c03819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Herein, we report a rare example of rhodium-catalyzed C-H activation/[4 + 2] annulation of alkenyl amides with bicyclic alkenes under mild and green conditions. The reactivity of the rhodium catalyst in this study differed from that observed in cobalt-catalyzed C-H activation/[3 + 2] annulation between vinylic amides and bicyclic alkenes. In addition, the reaction was performed in EtOH at room temperature, which also displayed excellent diastereoselectivity, good functional group tolerance, and air compatibility. A series of novel bridged-ring skeletons were obtained in good to excellent yields. Scale-up experiments were carried out with 1 or 0.75 mol % rhodium catalyst, affording the desired bridged-ring skeleton in excellent yields.
Collapse
Affiliation(s)
- Yan Wang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550014, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Sijia Shi
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Wei Zhang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Yong Nian
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaowei Wu
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550014, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
- Drug Discovery and Development Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| |
Collapse
|
2
|
Burden TJ, Fernandez KPR, Kagoro M, Eastwood JB, Tanner TFN, Whitwood AC, Clark IP, Towrie M, Krieger J, Lynam JM, Fairlamb IJS. Coumarin C-H Functionalization by Mn(I) Carbonyls: Mechanistic Insight by Ultra-Fast IR Spectroscopic Analysis. Chemistry 2023; 29:e202203038. [PMID: 36625067 PMCID: PMC10947090 DOI: 10.1002/chem.202203038] [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: 09/29/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/11/2023]
Abstract
Mn(I) C-H functionalization of coumarins provides a versatile and practical method for the rapid assembly of fused polycyclic pyridinium-containing coumarins in a regioselective manner. The synthetic strategy enables application of bench-stable organomanganese reagents in both photochemical- and thermal-promoted reactions. The cyclomanganated intermediates, and global reaction system, provide an ideal testing ground for structural characterization of the active Mn(I) carbonyl-containing species, including transient species observable by ultra-fast time-resolved spectroscopic methods. The thermodynamic reductive elimination product, solely encountered from reaction between alkynes and air-stable organometallic cyclomanganated coumarins, has enabled characterization of a critical seven-membered Mn(I) intermediate, detected by time-resolved infrared spectroscopy, enabling the elucidation of the temporal profile of key steps in the reductive elimination pathway. Quantitative data are provided. Manganated polycyclic products are readily decomplexed by AgBF4 , opening-up an efficient route to the formation of π-extended hybrid coumarin-pyridinium compounds.
Collapse
Affiliation(s)
- Thomas J. Burden
- Department of ChemistryUniversity of York HeslingtonYorkYO10 5DDUK
| | | | - Mary Kagoro
- Department of ChemistryUniversity of York HeslingtonYorkYO10 5DDUK
| | | | | | | | - Ian P. Clark
- Central Laser FacilityResearch Complex at Harwell STFC Rutherford Appleton Laboratory Harwell Campus DidcotOxfordshireOX11 0QXUK
| | - Michael Towrie
- Central Laser FacilityResearch Complex at Harwell STFC Rutherford Appleton Laboratory Harwell Campus DidcotOxfordshireOX11 0QXUK
| | | | - Jason M. Lynam
- Department of ChemistryUniversity of York HeslingtonYorkYO10 5DDUK
| | | |
Collapse
|
3
|
Mandal D, Roychowdhury S, Biswas JP, Maiti S, Maiti D. Transition-metal-catalyzed C-H bond alkylation using olefins: recent advances and mechanistic aspects. Chem Soc Rev 2022; 51:7358-7426. [PMID: 35912472 DOI: 10.1039/d1cs00923k] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal catalysis has contributed immensely to C-C bond formation reactions over the last few decades, and alkylation is no exception. The superiority of such methodologies over traditional alkylation is evident from minimal reaction steps, shorter reaction times, and atom economy while also allowing control over regio- and stereo-selectivity. In particular, hydrocarbonation of alkenes has grabbed increased attention due its fundamental ability to effectively and selectively synthesise a wide range of industrially and pharmaceutically relevant moieties. This review attempts to provide a scientific viewpoint and a systematic analysis of the recent developments in transition-metal-catalyzed alkylation of various C-H bonds using simple and activated olefins. The key features and mechanistic studies involved in these transformations are described briefly.
Collapse
Affiliation(s)
- Debasish Mandal
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462066, India
| | - Sumali Roychowdhury
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Jyoti Prasad Biswas
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Siddhartha Maiti
- School of Bioengineering, Vellore Institute of Technology, Bhopal University, Bhopal-Indore Highway, Kothrikalan, Sehore, Madhya Pradesh-466114, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India. .,Department of Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| |
Collapse
|
4
|
Ho A, Pounder A, Valluru K, Chen LD, Tam W. Iridium-catalyzed hydroacylation reactions of C1-substituted oxabenzonorbornadienes with salicylaldehyde: an experimental and computational study. Beilstein J Org Chem 2022; 18:251-261. [PMID: 35330776 PMCID: PMC8919423 DOI: 10.3762/bjoc.18.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 02/16/2022] [Indexed: 11/23/2022] Open
Abstract
An experimental and theoretical investigation on the iridium-catalyzed hydroacylation of C1-substituted oxabenzonorbornadienes with salicylaldehyde is reported. Utilizing commercially available [Ir(COD)Cl]2 in the presence of 5 M KOH in dioxane at 65 °C, provided a variety of hydroacylated bicyclic adducts in up to a 95% yield with complete stereo- and regioselectivity. The mechanism and origins of selectivity in the iridium-catalyzed hydroacylation reaction has been examined at the M06/Def2TZVP level of theory. The catalytic cycle consists of three key steps including oxidative addition into the aldehyde C–H bond, insertion of the olefin into the iridium hydride, and C–C bond-forming reductive elimination. Computational results indicate the origin of regioselectivity is involved in the reductive elimination step.
Collapse
Affiliation(s)
- Angel Ho
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Krish Valluru
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Leanne D Chen
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| |
Collapse
|
5
|
Olding A, Tang M, Ho CC, Fuller RO, Bissember AC. Rhenium-catalysed reactions in chemical synthesis: selected case studies. Dalton Trans 2022; 51:3004-3018. [DOI: 10.1039/d1dt04205j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This Perspective presents and discusses a selection of examples that reinforce the enabling and distinctive reactivity provided by homogeneous rhenium catalysis in chemical synthesis. Specifically, the ability for lower oxidation...
Collapse
|
6
|
Pounder A, Tam W, Chen LD. The Mechanism and Origin of Enantioselectivity in the Rhodium-Catalyzed Asymmetric Ring-Opening Reactions of Oxabicyclic Alkenes with Organoboronic Acids: A DFT Investigation. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Leanne D. Chen
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| |
Collapse
|
7
|
Pounder A, Bishop F, Chen LD, Tam W. A DFT Study on the Mechanism and Origin of Regioselectivity in the Rhodium/Diene‐Catalyzed Ring‐Opening Reactions of C1‐Substituted Oxabenzonorbornadienes with Arylboronic Acids. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry Department of Chemistry University of Guelph Guelph N1G 2W1 Canada
| | - Fiona Bishop
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry Department of Chemistry University of Guelph Guelph N1G 2W1 Canada
| | - Leanne D. Chen
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry Department of Chemistry University of Guelph Guelph N1G 2W1 Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry Department of Chemistry University of Guelph Guelph N1G 2W1 Canada
| |
Collapse
|
8
|
Sarathkumar S, Kavala V, Yao CF. A Water-Soluble Rhenium(I) Catalyst for the Regio- and Stereoselective C(sp 2)-H Alkenylation of N-Pyridyl-/ N-Pyrimidylindole and the N-H Alkenylation of N-Pyrimidylaniline Derivatives with Ynamides. Org Lett 2021; 23:1960-1965. [PMID: 33523663 DOI: 10.1021/acs.orglett.0c04068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A water-soluble and low-valent rhenium(I) catalyst for the C2 alkenylation of N-pyridyl/N-pyrimidylindole derivatives with ynamides under mild conditions using water as the solvent has been described. The reaction of N-pyridyl/N-pyrimidyl indole with the ynamide afforded the C2-Z-selective alkenylation derivative as the sole product, and the reactions of N-pyrimidylanilines delivered the corresponding N-alkenylated product rather than the expected C-H alkenylation products in high yields under the same conditions.
Collapse
Affiliation(s)
- Sundaramoorthi Sarathkumar
- Department of Chemistry, National Taiwan Normal University, No-88, Sec.4, Ting- Zhou Road, Taipei 11677, Taiwan R.O.C
| | - Veerababurao Kavala
- Department of Chemistry, National Taiwan Normal University, No-88, Sec.4, Ting- Zhou Road, Taipei 11677, Taiwan R.O.C
| | - Ching-Fa Yao
- Department of Chemistry, National Taiwan Normal University, No-88, Sec.4, Ting- Zhou Road, Taipei 11677, Taiwan R.O.C
| |
Collapse
|
9
|
Pounder A, Ho A, Macleod M, Tam W. Chemistry of Unsymmetrical C1-Substituted Oxabenzonorbornadienes. Curr Org Synth 2021; 18:446-474. [PMID: 33402089 DOI: 10.2174/1570179417666210105121115] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/23/2020] [Accepted: 11/30/2020] [Indexed: 11/22/2022]
Abstract
Oxabenzonorbornadiene (OBD) is a useful synthetic intermediate, which can be readily activated by transition metal complexes with great face selectivity due to its dual-faced nature and intrinsic angle strain on the alkene. To date, the understanding of transition-metal catalyzed reactions of OBD itself has burgeoned; however, this has not been the case for unsymmetrical OBDs. Throughout the development of these reactions, the nature of C1-substituent has proven to have a profound effect on both the reactivity and selectivity of the outcome of the reaction. Upon substitution, different modes of reactivity arise, contributing to the possibility of multiple stereo-, regio-, and in extreme cases, constitutional isomers, which can provide unique means of constructing a variety of synthetically useful cyclic frameworks. To maximize selectivity, an understanding of bridgehead substituent effects is crucial. To that end, this review outlines hitherto reported examples of bridgehead substituent effects on the chemistry of unsymmetrical C1-substituted OBDs.
Collapse
Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Angel Ho
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Matthew Macleod
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| |
Collapse
|
10
|
Li H, Guo W, Jiang J, Wang J. Rhodium(III)‐Catalyzed Directed C−H Bond Naphthylation with 7‐Azabenzonorbornadiene as the Naphthylating Reagent. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Honghe Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Weicong Guo
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Jijun Jiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| |
Collapse
|
11
|
Vivek Kumar S, Banerjee S, Punniyamurthy T. Transition metal-catalyzed coupling of heterocyclic alkenes via C–H functionalization: recent trends and applications. Org Chem Front 2020. [DOI: 10.1039/d0qo00279h] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heterocyclic alkenes and their derivatives are an important class of reactive feedstock and valuable synthons. This review highlights the transition-metal-catalyzed coupling of heterocyclic alkenes via a C–H functionalization strategy.
Collapse
|
12
|
Zhang L, Wang Y, Yang Y, Zhang P, Wang C. Rhenium-catalyzed alkylarylation of alkenes with PhI(O2CR)2via decarboxylation to access indolinones and dihydroquinolinones. Org Chem Front 2020. [DOI: 10.1039/d0qo00953a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Rhenium-catalyzed alkylarylation of alkenes with hypervalent iodine(iii) reagents (HIRs) via decarboxylation to access various 3,3-disubstituted indolinones and trans-3,4-dihydroquinolinones is described.
Collapse
Affiliation(s)
- Lei Zhang
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
| | - Yin Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Yunhui Yang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Ping Zhang
- National Demonstration Center for Experimental Chemistry Education
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
| | - Congyang Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| |
Collapse
|
13
|
Padhi B, Kang G, Kim E, Ha J, Kim HT, Lim J, Joo JM. Pd-Catalyzed C–H Annulation of Five-Membered Heteroaryl Halides with Norbornene Derivatives. ACS Catal 2019. [DOI: 10.1021/acscatal.9b05177] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Birakishore Padhi
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Geunhee Kang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Eunmin Kim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Jeongmin Ha
- Department of Chemistry and Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyun Tae Kim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Jeewoo Lim
- Department of Chemistry and Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jung Min Joo
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| |
Collapse
|
14
|
Wang P, Xu Y, Sun J, Li X. Rhodium(III)-Catalyzed Chemo-divergent Couplings of Sulfoxonium Ylides with Oxa/azabicyclic Olefins. Org Lett 2019; 21:8459-8463. [DOI: 10.1021/acs.orglett.9b03226] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peiyuan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Youwei Xu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116923, China
| | - Jiaqiong Sun
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116923, China
| |
Collapse
|
15
|
Jia B, Yang Y, Jin X, Mao G, Wang C. Rhenium-Catalyzed Phthalide Synthesis from Benzamides and Aldehydes via C–H Bond Activation. Org Lett 2019; 21:6259-6263. [DOI: 10.1021/acs.orglett.9b02142] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bing Jia
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Yunhui Yang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Physical Science Laboratory, Huairou National Comprehensive Science Center, Beijing 101400, China
| | - Xiqing Jin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Guoliang Mao
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Congyang Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Physical Science Laboratory, Huairou National Comprehensive Science Center, Beijing 101400, China
| |
Collapse
|
16
|
Re‐Catalyzed Annulations of Weakly Coordinating
N
‐Carbamoyl Indoles/Indolines with Alkynes via C−H/C−N Bond Cleavage. Chemistry 2019; 25:8245-8248. [DOI: 10.1002/chem.201901518] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Indexed: 11/07/2022]
|
17
|
Qiu S, Zhai S, Wang H, Chen X, Zhai H. One-pot synthesis of benzo[b]fluorenones via a cobalt-catalyzed MHP-directed [3+2] annulation/ring-opening/dehydration sequence. Chem Commun (Camb) 2019; 55:4206-4209. [DOI: 10.1039/c9cc00948e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cobalt-catalyzed MHP-directed [3+2] annulation of benzoyl hydrazines with oxabicyclic alkenes followed by a ring-opening/dehydration sequence is developed for the one-pot synthesis of benzo[b]fluorenones.
Collapse
Affiliation(s)
- Shuxian Qiu
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics
- Shenzhen Engineering Laboratory of Nano Drug Slow-Release
- Shenzhen Graduate School of Peking University
- Shenzhen 518055
- China
| | - Shengxian Zhai
- College of Chemistry & Environmental Engineering
- Anyang Institute of Technology
- Anyang 455000
- China
| | - Huifei Wang
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- China
| | - Xiaoming Chen
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics
- Shenzhen Engineering Laboratory of Nano Drug Slow-Release
- Shenzhen Graduate School of Peking University
- Shenzhen 518055
- China
| | - Hongbin Zhai
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics
- Shenzhen Engineering Laboratory of Nano Drug Slow-Release
- Shenzhen Graduate School of Peking University
- Shenzhen 518055
- China
| |
Collapse
|
18
|
Chang YC, Prakash S, Cheng CH. ReI-Catalyzed highly regio- and stereoselective C–H addition to terminal and internal alkynes. Org Chem Front 2019. [DOI: 10.1039/c8qo01068d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Re(i)-Catalyzed ortho alkenylation of arylpyridines and N-pyrimidyl indoles with alkynes provides excellent regio- and stereoselectivity with lower catalytic loadings.
Collapse
Affiliation(s)
- Yu-Che Chang
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Sekar Prakash
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Chien-Hong Cheng
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| |
Collapse
|