1
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Changmai S, Gogoi T, Phukon J, Das B, Gogoi S. Ru(II)-catalyzed oxidative coupling of sulfoxonium ylides with amines: efficient synthesis of α-ketoamides and indolo[2,1- a]isoquinolines. Org Biomol Chem 2023; 21:3235-3244. [PMID: 36994697 DOI: 10.1039/d3ob00187c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
The first use of sulfoxonium ylides for the synthesis of α-ketoamides is described via a Ru(II)-catalyzed amidation reaction with amines. The same Ru(II)-catalyzed reaction of sulfoxonium ylides with 2-phenylindoles provided indolo[2,1-a]isoquinolines instead of α-ketoamides.
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Affiliation(s)
- Sumi Changmai
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Tribeni Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Jyotshna Phukon
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Bipul Das
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
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2
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Takeshima A, Kano T. Diethylzinc-Mediated Cross-Coupling Reactions between Dibromoketones and Monobromo Carbonyl Compounds. Angew Chem Int Ed Engl 2023; 62:e202217496. [PMID: 36583678 DOI: 10.1002/anie.202217496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
A novel route to synthesize 1,4-dicarbonyl compounds is described. α,α-Dibromoketones generate zinc enolates through a diethylzinc-mediated halogen-metal exchange and react with α-bromocarbonyl compounds to furnish 1,4-dicarbonyl compounds via a second generation of zinc enolates. This cross-coupling reaction is enabled by the chemoselective formation of zinc enolates from α,α-dibromoketones in the presence of α-bromocarbonyl compounds. Chiral 1,4-dicarbonyl compounds can be obtained via the enantioselective bromination of aldehydes using a chiral secondary amine catalyst and a subsequent cross-coupling reaction between the resulting chiral α-bromoaldehydes and α,α-dibromoacetophenones.
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Affiliation(s)
- Aika Takeshima
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan.,Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan
| | - Taichi Kano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
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3
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Zhang H, Wang Z, Wang Z, Chu Y, Wang S, Hui XP. Visible-Light-Mediated Formal Carbene Insertion Reaction: Enantioselective Synthesis of 1,4-Dicarbonyl Compounds Containing All-Carbon Quaternary Stereocenter. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00064] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hua Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Zheyuan Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Zirui Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yunpeng Chu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Shuncheng Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xin-Ping Hui
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
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4
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5
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Ma J, Cui X, Xu J, Tan Y, Wang Y, Wang X, Li Y. One-Pot Synthesis of α-Ketoamides from α-Keto Acids and Amines Using Ynamides as Coupling Reagents. J Org Chem 2022; 87:3661-3667. [PMID: 35029390 DOI: 10.1021/acs.joc.1c02453] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A one-pot strategy for α-keto amide bond formation have been developed by using ynamides as coupling reagents under extremely mild reaction conditions. Diversely structural α-ketoamides were afforded in up to 98% yield for 36 examples. This reaction features advantages such as practical coupling procedure, wide functional group tolerance, and extremely mild conditions and has potential applications in synthetic and medicinal chemistry.
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Affiliation(s)
- Jianting Ma
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Xue Cui
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Junyu Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Yinfeng Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Yan Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Xuesong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Youbin Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
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6
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Challenges in the Highly Selective [3 + 1]-Cycloaddition of an Enoldiazoacetamide to Form a Donor-Acceptor Cis-Cyclobutenecarboxamide. Molecules 2021; 26:molecules26123520. [PMID: 34207747 PMCID: PMC8229219 DOI: 10.3390/molecules26123520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 05/28/2021] [Accepted: 05/31/2021] [Indexed: 11/17/2022] Open
Abstract
A substituted donor-acceptor cyclobutenecarboxamide is synthesized with modest enantiocontrol through a chiral copper(I) complex catalyzed [3 + 1]-cycloaddition reaction of α-acyl diphenylsulfur ylides with 3-siloxy-2-diazo-3-butenamides. With a methyl substituent on the 4-position of the 3-butenamide, the cis-vicinal-3,4-disubstituted cyclobutenecarboxamide is formed with >20:1 diastereocontrol. Donor-acceptor 3-methyl-2-siloxycyclopropenecarboxamide is rapidly formed from the reactant enoldiazoamide and undergoes catalytic ring opening to give only the Z-γ-substituted metallo-enolcarbene. Elimination from 3-siloxy-2-diazo-3-pentenamide to form the conjugated 3-siloxy-2,4-pentadienamide is competitive but minimized at low temperature.
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7
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Rezazadeh Khalkhali M, Wilde MMD, Gravel M. Enantioselective Stetter Reactions Catalyzed by Bis(amino)cyclopropenylidenes: Important Role for Water as an Additive. Org Lett 2021; 23:155-159. [PMID: 33320678 DOI: 10.1021/acs.orglett.0c03879] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first highly enantioselective intermolecular Stetter reaction using simple enones is reported. A series of novel chiral BAC structures were designed and prepared. They were tested in the Stetter reaction with simple aldehydes and enones. The products were generated in excellent yields and enantioselectivities (up to 94% ee). Surprisingly, a substoichiometric amount of water was crucial to obtain high enantioselectivities. Chiral BACs were also shown to catalyze 1,6-conjugate addition reactions with paraquinone methides enantioselectively.
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Affiliation(s)
| | - Myron M D Wilde
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
| | - Michel Gravel
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
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8
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Chen X, Wang H, Jin Z, Chi YR. N
‐Heterocyclic
Carbene Organocatalysis: Activation Modes and Typical Reactive Intermediates. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000107] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xingkuan Chen
- Department of Chemistry, Jinan University Guangzhou Guangdong 510632 China
| | - Hongling Wang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University Huaxi District Guiyang Guizhou 550025 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University Huaxi District Guiyang Guizhou 550025 China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University Huaxi District Guiyang Guizhou 550025 China
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University Singapore 637371 Singapore
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9
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Kawafuchi H, Ma L, Hossain MI, Inokuchi T. O-AcylTEMPOs, a Modified and Fundamental, but Unexplored Carboxylic Derivative: Recent Progress in Synthetic Applications. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666191019102511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
O-Acylated 2,2,6,6-tetramethylpiperidine-N-oxyls (abbr. O-AcylTEMPOs) are
easily available and stable carboxylic derivatives, but their utility in organic synthesis is
unexplored in contrast to analogues, such as the N-methoxy-N-methylamides, known as
Weinreb amides. Especially, the O–N unit of the O-acylTEMPOs dictates a fairly electronwithdrawing
character for the carbonyl function. This enhances the reactivity and stability
of the resulting enolate ions. Accordingly, O-acylTEMPOs allow various transformations
and this review encompasses seven topics: (1) Reactivity of O-acylTEMPOs towards nucleophiles
and chemoselective transformations, (2) Reactivity of anionic species derived
from O-acylTEMPOs, (3) E-Selective Knoevenagel condensation of acetoacetylTEMPOs
and synthesis of furans, (4) Electrocyclization of 2,4-dienones derived from acetoacetic
derivatives and 2-substituted enals, (5) Diastereoselective addition of amide anion to O-(2-alkenoyl)TEMPOs
and β-amino acid synthesis, (6) Thermolysis of O-acylTEMPOs, and (7) Applications for Umpolung reactions
using O-benzoylTEMPOs, useful for the electrophilic amination of alkenes and alkynes.
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Affiliation(s)
- Hiroyuki Kawafuchi
- National Institute of Technology, Toyama College 13, Hongo-machi, Toyama, 939-8630, Japan
| | - Lijian Ma
- College of Chemistry, Sichuan University Chengdu 610064, China
| | - Md Imran Hossain
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, 419 Faser Hall, University, MS 38677, United States
| | - Tsutomu Inokuchi
- Graduate School of Natural Science and Technology, Okayama University, Tsushima-naka, Kita- Ku, 3-1-1, Okayama, 700-8530, Japan
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10
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Ide R, Kyan R, Phuc Le T, Kitagawa Y, Sato K, Mase N, Narumi T. Chemoselective Umpolung of Enals for Asymmetric Homoenolate Cross-Annulation of Enals and Aldehydes Catalyzed by N-Heterocyclic Carbene. Org Lett 2019; 21:9119-9123. [PMID: 31686515 DOI: 10.1021/acs.orglett.9b03509] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An asymmetric homoenolate cross-annulation of enals and aldehydes with high enantioselectivity is realized by NHC-catalyzed chemoselective umpolung of enals. The reaction proceeds in a highly chemoselective manner, selectively generating the conjugated Breslow intermediates from enals rather than aldehydes, enabling the homoenolate addition of enals to aldehydes in preference to competing acyl anion-mediated reactions. Enantioenriched substituted γ-butyrolactones are formed in good yields with high enantioselectivities.
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Affiliation(s)
- Ryuji Ide
- Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan
| | - Ryuji Kyan
- Graduate School of Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan
| | - Thien Phuc Le
- Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan
| | - Yuya Kitagawa
- Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan
| | - Kohei Sato
- Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan.,Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan
| | - Nobuyuki Mase
- Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan.,Graduate School of Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan.,Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan.,Research Institute of Green Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan
| | - Tetsuo Narumi
- Course of Applied Chemistry and Biochemical Engineering, Department of Engineering, Graduate School of Integrated Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan.,Graduate School of Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan.,Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan.,Research Institute of Green Science and Technology , Shizuoka University , 3-5-1 Johoku , Hamamatsu , Shizuoka 432-8561 , Japan
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11
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Ghosh D, Nandi R, Khamarui S, Ghosh S, Maiti DK. Selective amidation by a photocatalyzed umpolung reaction. Chem Commun (Camb) 2019; 55:3883-3886. [DOI: 10.1039/c9cc01079c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a metal-catalyzed organic transformation merged with another organophotocatalyst has been developed under mild conditions for the production of α-ketoamides.
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Affiliation(s)
- Debasish Ghosh
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | - Rajesh Nandi
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | - Saikat Khamarui
- Department of Chemistry
- Government General Degree College at Kalna-1
- Burdwan-713405
- India
| | - Sukla Ghosh
- Department of Chemistry
- Women's College, Calcutta
- Kolkata-700003
- India
| | - Dilip K. Maiti
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
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12
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Han T, Wang Y, Li HL, Luo X, Deng WP. Synthesis of Polysubstituted 3-Aminothiophenes from Thioamides and Allenes via Tandem Thio-Michael Addition/Oxidative Annulation and 1,2-Sulfur Migration. J Org Chem 2018; 83:1538-1542. [DOI: 10.1021/acs.joc.7b02616] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Teng Han
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yu Wang
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hong-Liang Li
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaoyan Luo
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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13
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Zhang X, Wu M, Zhang J, Cao S. Synthesis of N,N-disubstituted 2-aminothiophenes by the cyclization of gem-difluoroalkenes with β-keto thioamides. Org Biomol Chem 2017; 15:2436-2442. [DOI: 10.1039/c7ob00368d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and effective method for the construction of highly functionalized aminothiophenes via the cyclization of gem-difluoroalkenes with β-keto tertiary thioamides is described.
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Affiliation(s)
- Xuxue Zhang
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Mingsheng Wu
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Juan Zhang
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
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14
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Rafiński Z. Novel (−)-β-Pinene-Derived Triazolium Salts: Synthesis and Application in the Asymmetric Stetter Reaction. ChemCatChem 2016. [DOI: 10.1002/cctc.201600498] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zbigniew Rafiński
- Department of Organic Chemistry; Faculty of Chemistry; Nicolaus Copernicus University in Toruń; 7 Gagarin Street 87-100 Toruń Poland
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15
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Affiliation(s)
- Dinesh Kumar
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Sandeep R. Vemula
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Gregory R. Cook
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
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16
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Wu J, Zhao C, Wang J. Enantioselective Intermolecular Enamide–Aldehyde Cross-Coupling Catalyzed by Chiral N-Heterocyclic Carbenes. J Am Chem Soc 2016; 138:4706-9. [DOI: 10.1021/jacs.5b13501] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jicheng Wu
- School of Pharmaceutical
Sciences and §School of Medicine, Tsinghua University, Beijing 100084, China
| | - Changgui Zhao
- School of Pharmaceutical
Sciences and §School of Medicine, Tsinghua University, Beijing 100084, China
| | - Jian Wang
- School of Pharmaceutical
Sciences and §School of Medicine, Tsinghua University, Beijing 100084, China
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17
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Weng JQ, Fan RJ, Deng QM, Liu RR, Gao JR, Jia YX. Enantioselective Friedel-Crafts Alkylation Reactions of 3-Substituted Indoles with Electron-Deficient Alkenes. J Org Chem 2016; 81:3023-30. [PMID: 26959867 DOI: 10.1021/acs.joc.6b00123] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Highly enantioselective Friedel-Crafts C2-alkylation reactions of 3-substituted indoles with α,β-unsaturated esters and nitroalkenes were developed using chiral Lewis acids as catalysts, which afforded chiral indole derivatives bearing C2-benzylic stereogenic centers in good to excellent yields (up to 99%) and enantioselectivities (up to 96% ee).
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Affiliation(s)
- Jian-Quan Weng
- College of Chemical Engineering, Zhejiang University of Technology , Hangzhou 310014, China
| | - Ren-Jie Fan
- College of Chemical Engineering, Zhejiang University of Technology , Hangzhou 310014, China
| | - Qiao-Man Deng
- College of Chemical Engineering, Zhejiang University of Technology , Hangzhou 310014, China
| | - Ren-Rong Liu
- College of Chemical Engineering, Zhejiang University of Technology , Hangzhou 310014, China
| | - Jian-Rong Gao
- College of Chemical Engineering, Zhejiang University of Technology , Hangzhou 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, Zhejiang University of Technology , Hangzhou 310014, China
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18
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De Risi C, Pollini GP, Zanirato V. Recent Developments in General Methodologies for the Synthesis of α-Ketoamides. Chem Rev 2016; 116:3241-305. [DOI: 10.1021/acs.chemrev.5b00443] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Carmela De Risi
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Gian Piero Pollini
- Istituto Universitario
di Studi Superiori “IUSS−Ferrara 1391”, Via delle Scienze 41/b, 44121 Ferrara, Italy
| | - Vinicio Zanirato
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
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19
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Sun Z, Zhou J, Liu X. Facile Synthesis of Chiral Benzimidazolium Salts and the Application in Asymmetric Catalytic Borylation. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Flanigan DM, Romanov-Michailidis F, White NA, Rovis T. Organocatalytic Reactions Enabled by N-Heterocyclic Carbenes. Chem Rev 2015; 115:9307-87. [PMID: 25992594 PMCID: PMC4986729 DOI: 10.1021/acs.chemrev.5b00060] [Citation(s) in RCA: 1395] [Impact Index Per Article: 155.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Darrin M Flanigan
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
| | | | - Nicholas A White
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
| | - Tomislav Rovis
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
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21
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Sinha D, Biswas A, Singh VK. Chiral Phosphine–Silver(I) Complex Catalyzed Enantioselective Interrupted Feist–Bénary Reaction with Ynones: The Aldol–Cycloisomerization Cascade. Org Lett 2015; 17:3302-5. [DOI: 10.1021/acs.orglett.5b01468] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Debarshi Sinha
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, M.P. 462066, India
| | - Arnab Biswas
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, M.P. 462066, India
| | - Vinod K. Singh
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, M.P. 462066, India
- Indian Institute of Technology Kanpur, U.P. 201086, India
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22
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Kawafuchi H, Ma LJ, Inokuchi T. O-AcylTEMPOs as a Modified Carboxylic Derivative and Their Analogues; Exploration of the Reactivity and Synthetic Applications. J SYN ORG CHEM JPN 2015. [DOI: 10.5059/yukigoseikyokaishi.73.995] [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)
- Hiroyuki Kawafuchi
- Department of Applied Chemistry and Chemical Engineering, National Institute of Technology, Toyama College
| | - Li-Jian Ma
- Graduate School of Natural Science and Technology, Okayama University
| | - Tsutomu Inokuchi
- Graduate School of Natural Science and Technology, Okayama University
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23
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Murphy SK, Bruch A, Dong VM. Mechanistic insights into hydroacylation with non-chelating aldehydes†Electronic supplementary information (ESI) available: Materials and methods, reaction procedures, characterization data. CCDC 1012849. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc02026jClick here for additional data file. Chem Sci 2015; 6:174-180. [PMID: 25580215 PMCID: PMC4285142 DOI: 10.1039/c4sc02026j] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 08/27/2014] [Indexed: 12/01/2022] Open
Abstract
The combination of a small-bite-angle diphosphine bis(dicyclohexylphosphino)methane (dcpm) and [Rh(cod)OMe]2 catalyses the hydroacylation of 2-vinylphenols with a wide range of non-chelating aldehydes. Here we present a detailed experimental study that elucidates the factors contributing to the broad aldehyde scope and high reactivity. A variety of catalytically relevant intermediates were isolated and a [Rh(dcpm)(vinylphenolate)] complex was identified as the major catalytically relevant species. A variety of off-cycle intermediates were also identified that can re-enter the catalytic cycle by substrate- or 1,5-cyclooctadiene-mediated pathways. Saturation kinetics with respect to the 2-vinylphenol were observed, and this may contribute to the high selectivity for hydroacylation over aldehyde decarbonylation. A series of deuterium labelling experiments and Hammett studies support the oxidative addition of Rh to the aldehyde C-H bond as an irreversible and turnover-limiting step. The small bite angle of dcpm is crucial for lowering the barrier of this step and providing excellent reactivity with a variety of aldehydes.
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Affiliation(s)
- Stephen K Murphy
- Department of Chemistry , University of California , Irvine , California 92697-2025 , USA . ; Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Achim Bruch
- Department of Chemistry , University of California , Irvine , California 92697-2025 , USA .
| | - Vy M Dong
- Department of Chemistry , University of California , Irvine , California 92697-2025 , USA .
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24
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Grossmann A, Bartlett S, Janecek M, Hodgkinson JT, Spring DR. Diversity-Oriented Synthesis of Drug-Like Macrocyclic Scaffolds Using an Orthogonal Organo- and Metal Catalysis Strategy. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406865] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Grossmann A, Bartlett S, Janecek M, Hodgkinson JT, Spring DR. Diversity-Oriented Synthesis of Drug-Like Macrocyclic Scaffolds Using an Orthogonal Organo- and Metal Catalysis Strategy. Angew Chem Int Ed Engl 2014; 53:13093-7. [DOI: 10.1002/anie.201406865] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Indexed: 01/05/2023]
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26
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Patra A, Bhunia A, Biju AT. Facile synthesis of γ-ketophosphonates by an intermolecular Stetter reaction onto vinylphosphonates. Org Lett 2014; 16:4798-801. [PMID: 25192401 DOI: 10.1021/ol502262d] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The atom-economic and practical N-heterocyclic carbene (NHC) catalyzed Stetter reaction for the synthesis of γ-ketophosphonates by the reaction of aromatic aldehydes with vinylphosphonates is reported. The NHC derived from N-mesitylimidazolium salt (IMes) was an effective catalyst for this transformation, and the products were formed in moderate to good yields.
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Affiliation(s)
- Atanu Patra
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL) , Dr. Homi Bhabha Road, Pune 411008, India
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27
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Zhao M, Yang H, Li MM, Chen J, Zhou L. N-Heterocyclic Carbene Catalyzed Intramolecular Acylation of Allylic Electrophiles. Org Lett 2014; 16:2904-7. [DOI: 10.1021/ol501046p] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ming Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
| | - Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
| | - Miao-Miao Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
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28
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Rafiński Z, Kozakiewicz A, Rafińska K. (−)-β-Pinene-Derived N-Heterocyclic Carbenes: Application to Highly Enantioselective Intramolecular Stetter Reaction. ACS Catal 2014. [DOI: 10.1021/cs500207d] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Zbigniew Rafiński
- Department of Organic Chemistry and ‡Department of Crystallochemistry and Biocrystallography, Nicolaus Copernicus University, 7 Gagarin Street, 87-100 Toruń, Poland
| | - Anna Kozakiewicz
- Department of Organic Chemistry and ‡Department of Crystallochemistry and Biocrystallography, Nicolaus Copernicus University, 7 Gagarin Street, 87-100 Toruń, Poland
| | - Katarzyna Rafińska
- Department of Organic Chemistry and ‡Department of Crystallochemistry and Biocrystallography, Nicolaus Copernicus University, 7 Gagarin Street, 87-100 Toruń, Poland
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29
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Tong YF, Mao JH, Wu S, Zhao Y, Cheng Y. Changing the reaction pathway by NHC/Brønsted base cooperative catalysis: highly stereoselective synthesis of multifunctional benzo[a]fluoren-11-ones from the dimerization of 2-(aroylvinyl)arylaldehydes. J Org Chem 2014; 79:2075-81. [PMID: 24502669 DOI: 10.1021/jo4027758] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The unprecedented NHC/Brønsted base-cocatalyzed dimerization reaction of 2-(aroylvinyl)arylaldehydes was reported. In the presence of a triazole carbene catalyst alone, no reaction of 2-(aroylvinyl)arylaldehydes was observed. However, the combination of triazole carbene and 4-methoxyphenolate efficiently catalyzed the dimerization of 2-(aroylvinyl)arylaldehydes to proceed through a benzoin-Michael-Michael reaction cascade, producing 6-aroyl-5-(aroylmethyl)-11a-hydroxybenzo[a]fluoren-11-ones as the sole diastereomers in good yields.
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Affiliation(s)
- Yuan-feng Tong
- College of Chemistry, Beijing Normal University , Beijing 100875, People's Republic of China
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30
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Jang KP, Hutson GE, Johnston RC, McCusker EO, Cheong PHY, Scheidt KA. Asymmetric homoenolate additions to acyl phosphonates through rational design of a tailored N-heterocyclic carbene catalyst. J Am Chem Soc 2013; 136:76-9. [PMID: 24299299 DOI: 10.1021/ja410932t] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A highly selective NHC-catalyzed synthesis of γ-butyrolactones from the fusion of enals and α-ketophosphonates has been developed. Computational modeling of competing transition states guided a rational design strategy to achieve enhanced levels of enantioselectivity with a new tailored C1-symmetric biaryl-saturated imidazolium-derived NHC catalyst.
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Affiliation(s)
- Ki Po Jang
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Northwestern University , Silverman Hall, Evanston, Illinois 60208, United States
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31
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Han R, Qi J, Gu J, Ma D, Xie X, She X. N-Heterocyclic Carbene-Catalyzed Formal [3+2] Annulation of Alkynyl Aldehydes with Nitrosobenzenes: A Highly Regioselective Umpolung Strategy. ACS Catal 2013. [DOI: 10.1021/cs400602v] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Runfeng Han
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jing Qi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jixiang Gu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Donghui Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
- State Key Laboratory for Oxo Synthesis
and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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32
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Reimers T, Haberhauer G, Benkhäuser C, Schmidtchen FP, Lützen A, Lüning U. Enantiopure Chiral Concave N-Heterocyclic Carbene Precursors. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300830] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Wilde MMD, Gravel M. Bis(amino)cyclopropenylidenes as Organocatalysts for Acyl Anion and Extended Umpolung Reactions. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307167] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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Wilde MMD, Gravel M. Bis(amino)cyclopropenylidenes as Organocatalysts for Acyl Anion and Extended Umpolung Reactions. Angew Chem Int Ed Engl 2013; 52:12651-4. [DOI: 10.1002/anie.201307167] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 09/11/2013] [Indexed: 11/08/2022]
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35
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Zhao X, Glover GS, Oberg KM, Dalton DM, Rovis T. S NAr-Derived Decomposition By-products Involving Pentafluorophenyl Triazolium Carbenes. Synlett 2013; 24. [PMID: 24379522 DOI: 10.1055/s-0033-1338842] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Pentafluorophenyl triazolium carbenes, widely used in NHC-catalysis, can decompose by several mechanisms. Under high concentration conditions, the azolium may undergo a pentafluorophenyl exchange by a proposed SNAr mechanism to give an inactive salt. In the presence of appropriate substrates, cyclization on the ortho-position of the arene can occur, also by SNAr. These adducts provide a potential pathway for catalyst decomposition and serve as a caveat to the development of new reactions and catalysts.
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Affiliation(s)
- Xiaodan Zhao
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Garrett S Glover
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Kevin M Oberg
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Derek M Dalton
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Tomislav Rovis
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
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36
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Hintermann L, Ackerstaff J, Boeck F. Inner Workings of a Cinchona Alkaloid Catalyzed Oxa-Michael Cyclization: Evidence for a Concerted Hydrogen-Bond-Network Mechanism. Chemistry 2013; 19:2311-21. [DOI: 10.1002/chem.201203505] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Indexed: 11/09/2022]
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37
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Lathrop SP, Rovis T. A photoisomerization-coupled asymmetric Stetter reaction: application to the total synthesis of three diastereomers of (-)-cephalimysin A. Chem Sci 2013; 4. [PMID: 24224080 DOI: 10.1039/c3sc22292f] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The total synthesis of 8-epi, 8,9-epi, and 9-epi-(-)-cephalimysin A is described. Our catalytic enantioselective synthesis takes advantage of a novel tandem photoisomerization/Stetter reaction. The approach provides rapid access to the desired spirofuranone lactam core in good yield and excellent enantioselectivity. A late stage oxidation strategy allows for flexible access to three of the four diastereomers of cephalimysin A. Access to the epimers provides further support for the correction of the initially proposed relative stereochemistry of cephalimysin A.
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Affiliation(s)
- Stephen P Lathrop
- Department of Chemistry, Colorado State University, Fort Collins, Colorado, USA
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38
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Steward KM, Corbett MT, Goodman CG, Johnson JS. Asymmetric synthesis of diverse glycolic acid scaffolds via dynamic kinetic resolution of α-keto esters. J Am Chem Soc 2012; 134:20197-206. [PMID: 23186551 PMCID: PMC3533366 DOI: 10.1021/ja3102709] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The dynamic kinetic resolution of α-keto esters via asymmetric transfer hydrogenation has been developed as a technique for the highly stereoselective construction of structurally diverse β-substituted-α-hydroxy carboxylic acid derivatives. Through the development of a privileged m-terphenylsulfonamide for (arene)RuCl(monosulfonamide) complexes with a high affinity for selective α-keto ester reduction, excellent levels of chemo-, diastereo-, and enantiocontrol can be realized in the reduction of β-aryl- and β-chloro-α-keto esters.
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Affiliation(s)
| | | | - C. Guy Goodman
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599-3290, United States
| | - Jeffrey S. Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599-3290, United States
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39
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Massey RS, Collett CJ, Lindsay AG, Smith AD, O’Donoghue AC. Proton Transfer Reactions of Triazol-3-ylidenes: Kinetic Acidities and Carbon Acid pKa Values for Twenty Triazolium Salts in Aqueous Solution. J Am Chem Soc 2012; 134:20421-32. [DOI: 10.1021/ja308420c] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Richard S. Massey
- Department of Chemistry, Durham University, University Science Laboratories,
South Road, Durham DH1 3LE, U.K
| | - Christopher J. Collett
- EaStCHEM, School
of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, U.K
| | - Anita G. Lindsay
- Department of Chemistry, Durham University, University Science Laboratories,
South Road, Durham DH1 3LE, U.K
| | - Andrew D. Smith
- EaStCHEM, School
of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, U.K
| | - AnnMarie C. O’Donoghue
- Department of Chemistry, Durham University, University Science Laboratories,
South Road, Durham DH1 3LE, U.K
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40
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Izquierdo J, Hutson GE, Cohen DT, Scheidt KA. A continuum of progress: applications of N-hetereocyclic carbene catalysis in total synthesis. Angew Chem Int Ed Engl 2012; 51:11686-98. [PMID: 23074146 PMCID: PMC3756610 DOI: 10.1002/anie.201203704] [Citation(s) in RCA: 464] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Indexed: 11/08/2022]
Abstract
N-Heterocyclic carbene (NHC) catalyzed transformations have emerged as powerful tactics for the construction of complex molecules. Since Stetter's report in 1975 of the total synthesis of cis-jasmon and dihydrojasmon by using carbene catalysis, the use of NHCs in total synthesis has grown rapidly, particularly over the last decade. This renaissance is undoubtedly due to the recent developments in NHC-catalyzed reactions, including new benzoin, Stetter, homoenolate, and aroylation processes. These transformations employ typical as well as Umpolung types of bond disconnections and have served as the key step in several new total syntheses. This Minireview highlights these reports and captures the excitement and emerging synthetic utility of carbene catalysis in total synthesis.
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Affiliation(s)
- Javier Izquierdo
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Silverman Hall, Northwestern University, Evanston, IL 60208 (USA)
| | - Gerri E. Hutson
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Silverman Hall, Northwestern University, Evanston, IL 60208 (USA)
| | - Daniel T. Cohen
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Silverman Hall, Northwestern University, Evanston, IL 60208 (USA)
| | - Karl A. Scheidt
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Silverman Hall, Northwestern University, Evanston, IL 60208 (USA)
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41
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Jia MQ, Liu C, You SL. Diastereoselective and Enantioselective Desymmetrization of α-Substituted Cyclohexadienones via Intramolecular Stetter Reaction. J Org Chem 2012; 77:10996-1001. [DOI: 10.1021/jo3022555] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Min-Qiang Jia
- State Key
Laboratory of Organometallic Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, PR China
| | - Chuan Liu
- State Key
Laboratory of Organometallic Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, PR China
| | - Shu-Li You
- State Key
Laboratory of Organometallic Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, PR China
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42
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Wurz NE, Daniliuc CG, Glorius F. Highly enantioselective intermolecular Stetter reaction of simple acrylates: synthesis of α-chiral γ-ketoesters. Chemistry 2012; 18:16297-301. [PMID: 23154931 DOI: 10.1002/chem.201202432] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Revised: 10/11/2012] [Indexed: 11/09/2022]
Abstract
Simple Stetter: A novel N-heterocyclic carbene (NHC) was designed by combining an electron-rich 2,6-dimethoxy substituent and an underestimated yet promising chiral motif. With this NHC in hand, a highly enantioselective intermolecular Stetter reaction of simple acrylates was developed, yielding versatile α-chiral γ-ketoesters. This represents the first catalytic asymmetric route towards these valuable compounds (see scheme).
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Affiliation(s)
- Nathalie E Wurz
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster (Germany), Fax: (+49) 251-83-33202
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43
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Lu T, Gu L, Kang Q, Zhang Y. Design and synthesis of novel chiral dihydroimidazolium cyclophanes as N-heterocyclic carbene precatalysts. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.116] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Izquierdo J, Hutson GE, Cohen DT, Scheidt KA. Anwendungen der Katalyse mit N-heterocyclischen Carbenen in Totalsynthesen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203704] [Citation(s) in RCA: 169] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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45
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Sun ZX, Cheng Y. One-Step Formation both of C-N and of C-O Bonds of N-Alkoxyamides through NHC-Catalyzed Three-Component Reactions of Enals, Nitrosoarenes, and Enones. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200525] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Fallan C, Lam HW. Enantioselective Nickel-Catalyzed Michael Additions of Azaarylacetates and Acetamides to Nitroalkenes. Chemistry 2012; 18:11214-8. [DOI: 10.1002/chem.201202093] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Indexed: 11/05/2022]
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47
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Fernández M, Uria U, Vicario JL, Reyes E, Carrillo L. Enantioselective conjugate addition of donor-acceptor hydrazones to α,β-unsaturated aldehydes through formal diaza-ene reaction: access to 1,4-dicarbonyl compounds. J Am Chem Soc 2012; 134:11872-5. [PMID: 22780683 DOI: 10.1021/ja3041042] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Donor-acceptor monosubstituted hydrazones participate as suitable reagents able to undergo an enantioselective formal diaza-ene reaction with α,β-unsaturated aldehydes under chiral secondary amine catalysis. This constitutes a new approach for the enantioselective conjugate addition of hydrazones to enals under metal-free conditions and leads to the formation of γ-hydrazono carboxylic acids after oxidation/[1,3]-H shift. The methodology is also useful for the synthesis of enantioenriched β-substituted α-keto-1,5-diesters by using the hydrazone moiety as a masked carbonyl group.
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Affiliation(s)
- Maitane Fernández
- Departamento de Química Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), P.O. Box 644, E-48080 Bilbao, Spain
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48
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Jia MQ, You SL. Desymmetrization of cyclohexadienones viad-camphor-derived triazolium salt catalyzed intramolecular Stetter reaction. Chem Commun (Camb) 2012; 48:6363. [PMID: 22618513 DOI: 10.1039/c2cc32783j] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Enantioselective desymmetrization of cyclohexadienones via a d-camphor-derived triazolium salt catalyzed intramolecular Stetter reaction was realized. With 10 mol% of camphor-derived triazolium salt E and 10 mol% of DIEA, various substituted cyclohexadienones proceeded through an intramolecular Stetter reaction, affording tricyclic products in moderate to good yields and excellent ee.
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Affiliation(s)
- Min-Qiang Jia
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China.
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49
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Bhunia A, Yetra SR, Bhojgude SS, Biju AT. Efficient Synthesis of γ-Keto Sulfones by NHC-Catalyzed Intermolecular Stetter Reaction. Org Lett 2012; 14:2830-3. [DOI: 10.1021/ol301045x] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anup Bhunia
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune -411008, India
| | - Santhivardhana Reddy Yetra
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune -411008, India
| | - Sachin Suresh Bhojgude
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune -411008, India
| | - Akkattu T. Biju
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune -411008, India
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50
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Steward KM, Gentry EC, Johnson JS. Dynamic kinetic resolution of α-keto esters via asymmetric transfer hydrogenation. J Am Chem Soc 2012; 134:7329-32. [PMID: 22509806 DOI: 10.1021/ja3027136] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The dynamic kinetic resolution of β-aryl α-keto esters has been accomplished using a newly designed (arene)RuCl(monosulfonamide) transfer hydrogenation catalyst. This dynamic process generates three contiguous stereocenters with remarkable diastereoselectivity through a reduction/lactonization sequence. The resulting enantioenriched, densely functionalized γ-butyrolactones are of high synthetic utility, as highlighted by several secondary derivatizations.
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Affiliation(s)
- Kimberly M Steward
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 2799-3290, USA
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