3
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Banothu R, Peraka S, Kodumuri S, Chevella D, Gajula KS, Amrutham V, Yennamaneni DR, Nama N. An aqueous medium-controlled stereospecific oxidative iodination of alkynes: efficient access to (E)-diiodoalkene derivatives. NEW J CHEM 2018. [DOI: 10.1039/c8nj03929a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new and versatile approach for the stereospecific iodination of alkynes has been developed in aqueous media. Scale-up reactions (up to 5 g) established the proficiency of this protocol and highlight the feasibility of large scale reactions.
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Affiliation(s)
- Rammurthy Banothu
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Swamy Peraka
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Srujana Kodumuri
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Durgaiah Chevella
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Krishna Sai Gajula
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Vasu Amrutham
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Divya Rohini Yennamaneni
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Narender Nama
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
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4
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Huang L, Olivares AM, Weix DJ. Reductive Decarboxylative Alkynylation of N-Hydroxyphthalimide Esters with Bromoalkynes. Angew Chem Int Ed Engl 2017; 56:11901-11905. [PMID: 28782860 PMCID: PMC5836783 DOI: 10.1002/anie.201706781] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Indexed: 12/16/2022]
Abstract
A new method for the synthesis of terminal and internal alkynes from the nickel-catalyzed decarboxylative coupling of N-hydroxyphthalimide esters and bromoalkynes is presented. This reductive cross-electrophile coupling is the first to use a C(sp)-X electrophile, and appears to proceed via an alkynylnickel intermediate. The internal alkyne products are obtained in yields of 41-95 % without the need for a photocatalyst, light, or a strong oxidant. The reaction displays a broad scope of carboxylic acid and alkyne coupling partners, and can tolerate an array of functional groups, including carbamate NH, halogen, nitrile, olefin, ketone, and ester moieties. Mechanistic studies suggest that this process does not involve an alkynylmanganese reagent and instead proceeds through nickel-mediated bond formation.
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Affiliation(s)
- Liangbin Huang
- Department of Chemistry, University of Rochester, Rochester, New York, 14627-0216, USA
| | - Astrid M Olivares
- Department of Chemistry, University of Rochester, Rochester, New York, 14627-0216, USA
| | - Daniel J Weix
- Department of Chemistry, University of Rochester, Rochester, New York, 14627-0216, USA
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5
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Peng F, Chen Y, Chen CY, Dormer PG, Kassim A, McLaughlin M, Reamer RA, Sherer EC, Song ZJ, Tan L, Tudge MT, Wan B, Chung JYL. Asymmetric Formal Synthesis of the Long-Acting DPP-4 Inhibitor Omarigliptin. J Org Chem 2017; 82:9023-9029. [PMID: 28776371 PMCID: PMC5933450 DOI: 10.1021/acs.joc.7b01467] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A highly efficient asymmetric synthesis of the key tetrahydropyranol intermediate of DPP-4 inhibitor omarigliptin (1) is described. The successful development of a protecting-group- and precious-metal-free synthesis was achieved via the discovery of a practical asymmetric Henry reaction and the application of a one-pot nitro-Michael-lactolization-dehydration through-process. Other features of the synthesis include a highly efficient MsCl-mediated dehydration and a crystallization-induced dynamic resolution for exceptional ee and dr upgrade. The synthesis of this complex intermediate utilizes simple starting materials and proceeds in four linear steps.
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Affiliation(s)
- Feng Peng
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Yonggang Chen
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Cheng-yi Chen
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Peter G. Dormer
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Amude Kassim
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Mark McLaughlin
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Robert A. Reamer
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Edward C. Sherer
- Department of Modeling and Informatics, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Zhiguo J. Song
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Lushi Tan
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Matthew T. Tudge
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Baoqiang Wan
- WuXi AppTec Co., Ltd., No. 1 Building, #288 FuTe ZhongLu, WaiGaoQiao Free Trade Zone, Shanghai 200131, China
| | - John Y. L. Chung
- Department of Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
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6
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Liu Y, Huang D, Huang J, Maruoka K. Hypervalent Iodine Mediated Chemoselective Iodination of Alkynes. J Org Chem 2017; 82:11865-11871. [PMID: 28803465 DOI: 10.1021/acs.joc.7b01555] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Reported herein are practical approaches for the chemoselective mono-, di-, and tri-iodination of alkynes based on efficient oxidative iodinations catalyzed by hypervalent iodine reagents. The reaction conditions were systematically optimized by altering the iodine source and/or the hypervalent iodine reagent system. The tetrabutylammonium iodide (TBAI)/(diacetoxyiodo)benzene (PIDA) system is specific for monoiodination, while the KI/PIDA system results in di-iodination. Combining the TBAI/PIDA and KI/PIDA systems in one pot provided the corresponding tri-iodination products efficiently. These reaction conditions can be applied to the synthetically important iodination of aromatic and aliphatic alkynes, which was accomplished in good yield (up to 99%) and excellent chemoselectivity. These synthetic methods can also be applied to the efficient chemoselective synthesis of iodoalkyne derivatives, intermediates, and related biologically active compounds.
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Affiliation(s)
- Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology , No.100, West Waihuan Road, HEMC, Panyu District, Guangzhou 510006, China
| | - Daya Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology , No.100, West Waihuan Road, HEMC, Panyu District, Guangzhou 510006, China
| | - Ju Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology , No.100, West Waihuan Road, HEMC, Panyu District, Guangzhou 510006, China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry, Guangdong University of Technology , No.100, West Waihuan Road, HEMC, Panyu District, Guangzhou 510006, China.,Department of Chemistry, Graduate School of Science, Kyoto University , Sakyo, Kyoto 606-8502, Japan
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7
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Huang L, Olivares AM, Weix DJ. Reductive Decarboxylative Alkynylation of
N
‐Hydroxyphthalimide Esters with Bromoalkynes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706781] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Liangbin Huang
- Department of Chemistry University of Rochester Rochester New York 14627-0216 USA
| | - Astrid M. Olivares
- Department of Chemistry University of Rochester Rochester New York 14627-0216 USA
| | - Daniel J. Weix
- Department of Chemistry University of Rochester Rochester New York 14627-0216 USA
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8
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Wang Y, Song X, Wang J, Moriwaki H, Soloshonok VA, Liu H. Recent approaches for asymmetric synthesis of α-amino acids via homologation of Ni(II) complexes. Amino Acids 2017; 49:1487-1520. [DOI: 10.1007/s00726-017-2458-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 06/24/2017] [Indexed: 12/17/2022]
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