1
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Vinayagam V, Hajay Kumar TV, Nune R, Karre SK, Sadhukhan SK. Visible-Light-Promoted Dual Photoredox/Nickel-Catalyzed Chemoselective Reduction of Secondary and Tertiary Amides with Hydrosilanes in the Presence of an Ester. J Org Chem 2023; 88:2122-2131. [PMID: 36730124 DOI: 10.1021/acs.joc.2c02543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We report a one-step procedure to selectively reduce secondary and tert-amides to their corresponding amine derivatives in the presence of an ester. This was achieved via the synergistic combination of a photoredox, a nickel catalytic system, and phenyl silane as a reductant in the presence of blue light-emitting diode light (455 nm) at room temperature. Further, this mild light-promoted dual metallaphotoredox catalytic system was also successful in selectively reducing a lactam to the cyclic amines, without affecting the ester moiety present in the molecules.
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Affiliation(s)
- Vinothkumar Vinayagam
- Curia India Pvt. Ltd (Formerly Albany Molecular Research, Hyderabad Research Centre), MN Park, Genome Valley, Hyderabad 500078, India
| | | | - Ravi Nune
- Curia India Pvt. Ltd (Formerly Albany Molecular Research, Hyderabad Research Centre), MN Park, Genome Valley, Hyderabad 500078, India
| | - Satish Kumar Karre
- Curia India Pvt. Ltd (Formerly Albany Molecular Research, Hyderabad Research Centre), MN Park, Genome Valley, Hyderabad 500078, India
| | - Subir Kumar Sadhukhan
- Curia India Pvt. Ltd (Formerly Albany Molecular Research, Hyderabad Research Centre), MN Park, Genome Valley, Hyderabad 500078, India
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2
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Dong F, Song X, Yin X, Wang L. Efficient Construction of Tetrahydroquinazolines via HFIP‐Promoted [1,5]‐Hydride Transfer/6‐Endo‐Trig Cyclization. ChemistrySelect 2022. [DOI: 10.1002/slct.202203936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Fengying Dong
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 Shandong P. R. China
| | - Xiaopei Song
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 Shandong P. R. China
| | - Xiangcong Yin
- Hematology Diagnosis Laboratory The Affiliated Hospital of Qingdao University Qingdao 266003 Shandong P. R. China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural University Qingdao 266109 Shandong P. R. China
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3
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Liu X, Werner T. Indirect reduction of CO 2 and recycling of polymers by manganese-catalyzed transfer hydrogenation of amides, carbamates, urea derivatives, and polyurethanes. Chem Sci 2021; 12:10590-10597. [PMID: 34447552 PMCID: PMC8356819 DOI: 10.1039/d1sc02663a] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/28/2021] [Indexed: 01/13/2023] Open
Abstract
The reduction of polar bonds, in particular carbonyl groups, is of fundamental importance in organic chemistry and biology. Herein, we report a manganese pincer complex as a versatile catalyst for the transfer hydrogenation of amides, carbamates, urea derivatives, and even polyurethanes leading to the corresponding alcohols, amines, and methanol as products. Since these compound classes can be prepared using CO2 as a C1 building block the reported reaction represents an approach to the indirect reduction of CO2. Notably, these are the first examples on the reduction of carbamates and urea derivatives as well as on the C-N bond cleavage in amides by transfer hydrogenation. The general applicability of this methodology is highlighted by the successful reduction of 12 urea derivatives, 26 carbamates and 11 amides. The corresponding amines, alcohols and methanol were obtained in good to excellent yields up to 97%. Furthermore, polyurethanes were successfully converted which represents a viable strategy towards a circular economy. Based on control experiments and the observed intermediates a feasible mechanism is proposed.
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Affiliation(s)
- Xin Liu
- Leibniz-Institute for Catalysis Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Thomas Werner
- Leibniz-Institute for Catalysis Albert-Einstein-Str. 29a 18059 Rostock Germany
- Department of Chemistry, Paderborn University Warburger Str. 100 33098 Paderborn Germany
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4
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Kim JH, Jeon H, Park C, Park S, Kim S. Collective Asymmetric Total Synthesis of C‐11 Oxygenated
Cephalotaxus
Alkaloids. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101766] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jae Hyun Kim
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
- College of Pharmacy Kangwon National University 1 Kangwondaehak-gil Chuncheon Gangwon-do 24341 Republic of Korea
| | - Hongjun Jeon
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Choyi Park
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Soojun Park
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Sanghee Kim
- College of Pharmacy Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
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5
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Kim JH, Jeon H, Park C, Park S, Kim S. Collective Asymmetric Total Synthesis of C-11 Oxygenated Cephalotaxus Alkaloids. Angew Chem Int Ed Engl 2021; 60:12060-12065. [PMID: 33733565 DOI: 10.1002/anie.202101766] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Indexed: 12/20/2022]
Abstract
While numerous studies pertaining to the total synthesis of Cephalotaxus alkaloids have been reported, only two strategies have been reported to date for the successful synthesis of the C-11 oxygenated subset, due to the additional synthetic challenge posed by the remote C-11 stereocenter. Herein, we report the collective asymmetric total synthesis of C-11 oxygenated Cephalotaxus alkaloids using a chiral proline both as a starting material and as the only chirality source. A tetracyclic advanced intermediate was synthesized in a highly stereoselective manner from l-proline in 8 steps involving sequential chirality transfer steps such as a diastereoselective N-alkylation, stereospecific Stevens rearrangement and intramolecular Friedel-Crafts reaction via an unusual O-acyloxocarbenium intermediate. From a common intermediate, the asymmetric total synthesis of six C-11 oxygenated Cephalotaxus alkaloids was completed by a series of oxidation state adjustments.
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Affiliation(s)
- Jae Hyun Kim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,College of Pharmacy, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon, Gangwon-do, 24341, Republic of Korea
| | - Hongjun Jeon
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Choyi Park
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Soojun Park
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
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6
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Schilling W, Das S. Transition Metal-Free Synthesis of Carbamates Using CO 2 as the Carbon Source. CHEMSUSCHEM 2020; 13:6246-6258. [PMID: 33107690 DOI: 10.1002/cssc.202002073] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Utilization of carbon dioxide as a C1 synthon is highly attractive for the synthesis of valuable chemicals. However, activation of CO2 is highly challenging, owing to its thermodynamic stability and kinetic inertness. With this in mind, several strategies have been developed for the generation of carbon-heteroatom bonds. Among these, formation of C-N bonds is highly attractive, especially, when carbamates can be synthesized directly from CO2 . This Minireview focuses on transition metal-free approaches for the fixation of CO2 to generate carbamates for the production of fine chemicals and pharmaceuticals. Within the past decade, transition metal-free approaches have gained increasing attention, but traditional reviews have rarely focused on these approaches. Direct comparisons between such methods have been even more scarce. This Minireview seeks to address this discrepancy.
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Affiliation(s)
- Waldemar Schilling
- Institute for Biomolecular and Organic Chemistry, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| | - Shoubhik Das
- ORSY division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
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7
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Zhou J, Bo X, Wan L, Xin Z. Efficient Reduction of Oxazolyl‐Bearing Secondary Anilides to Amines by Nickel‐Catalyzed Hydrosilylation. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jian Zhou
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 P. R. China
| | - Xiaofan Bo
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 P. R. China
| | - Li Wan
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 P. R. China
| | - Zhong Xin
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 P. R. China
- State-Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 P. R. China
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8
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Ong DY, Yen Z, Yoshii A, Revillo Imbernon J, Takita R, Chiba S. Controlled Reduction of Carboxamides to Alcohols or Amines by Zinc Hydrides. Angew Chem Int Ed Engl 2019; 58:4992-4997. [DOI: 10.1002/anie.201900233] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/09/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Derek Yiren Ong
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Zhihao Yen
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Asami Yoshii
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Julia Revillo Imbernon
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Ryo Takita
- Graduate School of Pharmaceutical SciencesThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shunsuke Chiba
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
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9
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Ong DY, Yen Z, Yoshii A, Revillo Imbernon J, Takita R, Chiba S. Controlled Reduction of Carboxamides to Alcohols or Amines by Zinc Hydrides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Derek Yiren Ong
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Zhihao Yen
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Asami Yoshii
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Julia Revillo Imbernon
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
| | - Ryo Takita
- Graduate School of Pharmaceutical SciencesThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shunsuke Chiba
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
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10
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Trillo P, Slagbrand T, Adolfsson H. Straightforward α-Amino Nitrile Synthesis Through Mo(CO)6
-Catalyzed Reductive Functionalization of Carboxamides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807735] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paz Trillo
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry; Stockholm University; 106 91 Stockholm Sweden
| | - Hans Adolfsson
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
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11
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Trillo P, Slagbrand T, Adolfsson H. Straightforward α-Amino Nitrile Synthesis Through Mo(CO)6
-Catalyzed Reductive Functionalization of Carboxamides. Angew Chem Int Ed Engl 2018; 57:12347-12351. [DOI: 10.1002/anie.201807735] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Paz Trillo
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry; Stockholm University; 106 91 Stockholm Sweden
| | - Hans Adolfsson
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
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12
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Ogiwara Y, Shimoda W, Ide K, Nakajima T, Sakai N. Carboxamides as N
-Alkylating Reagents of Secondary Amines in Indium-Catalyzed Reductive Amination with a Hydrosilane. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601629] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yohei Ogiwara
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
| | - Wataru Shimoda
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
| | - Keisuke Ide
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
| | - Takumi Nakajima
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
| | - Norio Sakai
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
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13
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Yue H, Guo L, Lee SC, Liu X, Rueping M. Selective Reductive Removal of Ester and Amide Groups from Arenes and Heteroarenes through Nickel-Catalyzed C−O and C−N Bond Activation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612624] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huifeng Yue
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Lin Guo
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Shao-Chi Lee
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Xiangqian Liu
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Magnus Rueping
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- King Abdullah University of Science and Technology (KAUST); KAUST Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
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14
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Yue H, Guo L, Lee SC, Liu X, Rueping M. Selective Reductive Removal of Ester and Amide Groups from Arenes and Heteroarenes through Nickel-Catalyzed C-O and C-N Bond Activation. Angew Chem Int Ed Engl 2017; 56:3972-3976. [PMID: 28321978 DOI: 10.1002/anie.201612624] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Indexed: 12/14/2022]
Abstract
An inexpensive nickel(II) catalyst and a hydrosilane were used for the efficient reductive defunctionalization of aryl and heteroaryl esters through a decarbonylative pathway. This versatile method could be used for the removal of ester and amide functional groups from various organic molecules. Moreover, a scale-up experiment and a synthetic application based on the use of a removable carboxylic acid directing group highlight the usefulness of this reaction.
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Affiliation(s)
- Huifeng Yue
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Lin Guo
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Shao-Chi Lee
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Xiangqian Liu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany.,King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
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15
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Fuentes de Arriba ÁL, Lenci E, Sonawane M, Formery O, Dixon DJ. Iridium‐Catalyzed Reductive Strecker Reaction for Late‐Stage Amide and Lactam Cyanation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612367] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ángel L. Fuentes de Arriba
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Elena Lenci
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Mahendra Sonawane
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Odilon Formery
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Darren J. Dixon
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
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16
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Fuentes de Arriba ÁL, Lenci E, Sonawane M, Formery O, Dixon DJ. Iridium-Catalyzed Reductive Strecker Reaction for Late-Stage Amide and Lactam Cyanation. Angew Chem Int Ed Engl 2017; 56:3655-3659. [PMID: 28233919 DOI: 10.1002/anie.201612367] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Indexed: 12/15/2022]
Abstract
A new iridium-catalyzed reductive Strecker reaction for the direct and efficient formation of α-amino nitrile products from a broad range of (hetero)aromatic and aliphatic tertiary amides, and N-alkyl lactams is reported. The protocol exploits the mild and highly chemoselective reduction of the amide and lactam functionalities using IrCl(CO)[P(C6 H5 )3 ]2 (Vaska's complex) in the presence of tetramethyldisiloxane, as a reductant, to directly generate hemiaminal species able to undergo substitution by cyanide upon treatment with TMSCN (TMS=trimethylsilyl). The protocol is simple to perform, broad in scope, efficient (up to 99 % yield), and has been successfully applied to the late-stage functionalization of amide- and lactam-containing drugs, and naturally occurring alkaloids, as well as for the selective cyanation of the carbonyl carbon atom linked to the N atom of proline residues within di- and tripeptides.
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Affiliation(s)
- Ángel L Fuentes de Arriba
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Elena Lenci
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Mahendra Sonawane
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Odilon Formery
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
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17
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Das S, Li Y, Lu LQ, Junge K, Beller M. A General and Selective Rhodium-Catalyzed Reduction of Amides,N-Acyl Amino Esters, and Dipeptides Using Phenylsilane. Chemistry 2016; 22:7050-3. [PMID: 26991132 DOI: 10.1002/chem.201600535] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Shoubhik Das
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
| | - Yuehui Li
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
| | - Liang-Qiu Lu
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
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18
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Chemoselective Reduction of Tertiary Amides under Thermal Control: Formation of either Aldehydes or Amines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600097] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Tinnis F, Volkov A, Slagbrand T, Adolfsson H. Chemoselective Reduction of Tertiary Amides under Thermal Control: Formation of either Aldehydes or Amines. Angew Chem Int Ed Engl 2016; 55:4562-6. [DOI: 10.1002/anie.201600097] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 02/11/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Fredrik Tinnis
- Department of Organic Chemistry; Stockholm University; 10691 Stockholm Sweden
| | - Alexey Volkov
- Department of Organic Chemistry; Stockholm University; 10691 Stockholm Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry; Stockholm University; 10691 Stockholm Sweden
| | - Hans Adolfsson
- Department of Organic Chemistry; Stockholm University; 10691 Stockholm Sweden
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