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Malik M, Senatore R, Castiglione D, Roller-Prado A, Pace V. Highly chemoselective homologative assembly of the α-substituted methylsulfinamide motif from N-sulfinylamines. Chem Commun (Camb) 2023; 59:11065-11068. [PMID: 37644820 DOI: 10.1039/d3cc03326k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
α-Substituted methylsulfinamide are prepared through the homologation of electrophilic N-sulfinylamines with Li-CHXY reagents. The transformation takes place under full chemocontrol and exhibits good flexibility for preparing both N-aryl and N-alkyl analogues. Various sensitive functionalities can be accommodated on the starting materials, thus documenting a wide reaction scope.
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Affiliation(s)
- Monika Malik
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna, Josef-Holaubek-Platz 2, 1090, Vienna, Austria.
| | - Raffaele Senatore
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna, Josef-Holaubek-Platz 2, 1090, Vienna, Austria.
| | - Davide Castiglione
- Department of Chemistry, Via Giuria 7, University of Turin, Turin 10125, Italy
| | - Alexander Roller-Prado
- Department of Inorganic Chemistry - Functional Materials, University of Vienna, Waehringerstrasse 42, 1090, Vienna, Austria
| | - Vittorio Pace
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna, Josef-Holaubek-Platz 2, 1090, Vienna, Austria.
- Department of Chemistry, Via Giuria 7, University of Turin, Turin 10125, Italy
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2
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Senatore R, Malik M, Pace V. Fluoroiodomethane: A CH2F‐Moiety Delivering Agent Suitable for Nucleophilic‐, Electrophilic‐ and Radical‐Harnessed Operations. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zheng C, Cui X, Wu J, Wu P, Yu Y, Liu H, Wu F. Synthesis and Application of Monofluoroalkyl Building Blocks: α‐Halo‐α‐fluoroketones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng Zheng
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Xuhui Cui
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Jingjing Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 200032 Shanghai P.R.China
| | - Pingjie Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Yanyan Yu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Hanwen Liu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Fanhong Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
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Kurma SH, Kolla ST, Sridhar B, Bhimapaka CR. Ruthenium‐Catalyzed Intermolecular Cyclization and N‐methylation of Salicyl N‐tosylhydrazones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Siva Hariprasad Kurma
- Indian Institute of Chemical Technology CSIR: Indian Institute of Chemical Technology Department of Organic Synthesis & Process Chemistry INDIA
| | - Sai Teja Kolla
- Indian Institute of Chemical Technology CSIR: Indian Institute of Chemical Technology Department of Organic Synthesis & Process Chemistry INDIA
| | - Balasubramanian Sridhar
- Indian Institute of Chemical Technology CSIR: Indian Institute of Chemical Technology Department of Analytical & Structural Chemistry INDIA
| | - China Raju Bhimapaka
- Indian Institute of Chemical Technology Department of Organic Synthesis & Process Chemistry INDIA
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6
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Synthesis of stable α-fluoromethyl putative carbanions via a chemoselective reduction-monofluoromethylation sequence of diselenides under sustainable conditions. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131921] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Ielo L, Miele M, Pillari V, Senatore R, Mirabile S, Gitto R, Holzer W, Alcántara AR, Pace V. Taking advantage of lithium monohalocarbenoid intrinsic α-elimination in 2-MeTHF: controlled epoxide ring-opening en route to halohydrins. Org Biomol Chem 2021; 19:2038-2043. [PMID: 33599644 DOI: 10.1039/d0ob02407d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The intrinsic degradative α-elimination of Li carbenoids somehow complicates their use in synthesis as C1-synthons. Nevertheless, we herein report how boosting such an α-elimination is a straightforward strategy for accomplishing controlled ring-opening of epoxides to furnish the corresponding β-halohydrins. Crucial for the development of the method is the use of the eco-friendly solvent 2-MeTHF, which forces the degradation of the incipient monohalolithium, due to the very limited stabilizing effect of this solvent on the chemical integrity of the carbenoid. With this approach, high yields of the targeted compounds are consistently obtained under very high regiocontrol and, despite the basic nature of the reagents, no racemization of enantiopure materials is observed.
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Affiliation(s)
- Laura Ielo
- University of Vienna - Department of Pharmaceutical Chemistry, Althanstrasse, 14, 1090, Vienna, Austria. and University of Turin - Department of Chemistry, Via P. Giuria 7, 10125, Turin, Italy
| | - Margherita Miele
- University of Vienna - Department of Pharmaceutical Chemistry, Althanstrasse, 14, 1090, Vienna, Austria.
| | - Veronica Pillari
- University of Vienna - Department of Pharmaceutical Chemistry, Althanstrasse, 14, 1090, Vienna, Austria.
| | - Raffaele Senatore
- University of Vienna - Department of Pharmaceutical Chemistry, Althanstrasse, 14, 1090, Vienna, Austria.
| | - Salvatore Mirabile
- University of Messina - Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, Viale Palatucci, 13, 98168 Messina, Italy
| | - Rosaria Gitto
- University of Messina - Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, Viale Palatucci, 13, 98168 Messina, Italy
| | - Wolfgang Holzer
- University of Vienna - Department of Pharmaceutical Chemistry, Althanstrasse, 14, 1090, Vienna, Austria.
| | - Andrés R Alcántara
- Complutense University of Madrid - Department of Chemistry in Pharmaceutical Sciences, Plaza de Ramón y Cajal, s/n, Madrid, Spain.
| | - Vittorio Pace
- University of Vienna - Department of Pharmaceutical Chemistry, Althanstrasse, 14, 1090, Vienna, Austria. and University of Turin - Department of Chemistry, Via P. Giuria 7, 10125, Turin, Italy
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Day DP, Vargas JAM, Burtoloso ACB. Synthetic Routes Towards the Synthesis of Geminal α-Difunctionalized Ketones. CHEM REC 2021; 21:2837-2854. [PMID: 33533538 DOI: 10.1002/tcr.202000176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/11/2021] [Indexed: 12/25/2022]
Abstract
The importance of gem-difunctionalized ketones is represented by their broad applications across chemical boundaries over recent years. The interesting reactivities that this class of compounds possess have made them ideal building blocks to access high-value organic molecules. Furthermore, the gem-difunctionalized ketone moiety has featured in numerous bioactive molecules. For these reasons, a plethora of routes to access such significant molecules have been developed by research groups worldwide - this account looks at delineating the synthesis of gem-difunctionalized ketones from carbonyl substrates, diazo compounds, sulfur ylides and alkynyl reactants.
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Affiliation(s)
- David P Day
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil
| | - Jorge A M Vargas
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil.,Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 # 62-00 Campus Pampalinda, Santiago de Cali, Colombia
| | - Antonio C B Burtoloso
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil
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