1
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Baussière F, Haugland MM. Radical Group Transfer of Vinyl and Alkynyl Silanes Driven by Photoredox Catalysis. J Org Chem 2023; 88:12451-12463. [PMID: 37581630 PMCID: PMC10476183 DOI: 10.1021/acs.joc.3c01213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Indexed: 08/16/2023]
Abstract
Radical group transfer is a powerful tool for the formation of C-C bonds. These processes typically involve radical addition to C-C π bonds, followed by fragmentation of the resulting cyclic intermediate. Despite the advantageous lability of organosilanes in this context, silicon-tethered radical acceptor groups have remained underexplored in radical group transfer reactions. We report a general photoredox-catalyzed protocol for the radical group transfer of vinyl and alkynyl silanes onto sp3 carbons, using activated and unactivated iodides as radical precursors. Our method displays high diastereoselectivity and excellent functional group tolerance, and enables direct formation of group transfer products by in situ ring opening. Mechanistic investigations revealed that the reaction proceeds via an unusual dual catalytic cycle, resulting in an overall redox-neutral process.
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Affiliation(s)
- Floriane Baussière
- Department of Chemistry, UiT The Arctic University of Norway, 9037 Tromsø, Norway
| | - Marius M. Haugland
- Department of Chemistry, UiT The Arctic University of Norway, 9037 Tromsø, Norway
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2
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Marco A, Guirado G, Sebastián RM, Hernando J. Spiropyran-based chromic hydrogels for CO 2 absorption and detection. Front Chem 2023; 11:1176661. [PMID: 37288075 PMCID: PMC10242082 DOI: 10.3389/fchem.2023.1176661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/10/2023] [Indexed: 06/09/2023] Open
Abstract
By enabling rapid, cost-effective, user-friendly and in situ detection of carbon dioxide, colorimetric CO2 sensors are of relevance for a variety of fields. However, it still remains a challenge the development of optical chemosensors for CO2 that combine high sensitivity, selectivity and reusability with facile integration into solid materials. Herein we pursued this goal by preparing hydrogels functionalized with spiropyrans, a well-known class of molecular switches that undergo different color changes upon application of light and acid stimuli. By varying the nature of the substituents of the spiropyran core, different acidochromic responses are obtained in aqueous media that allow discriminating CO2 from other acid gases (e.g., HCl). Interestingly, this behavior can be transferred to functional solid materials by synthesizing polymerizable spiropyran derivatives, which are used to prepare hydrogels. These materials preserve the acidochromic properties of the incorporated spiropyrans, thus leading to selective, reversible and quantifiable color changes upon exposure to different CO2 amounts. In addition, CO2 desorption and, therefore, recovery of the initial state of the chemosensor is favored by irradiation with visible light. This makes spiropyran-based chromic hydrogels promising systems for the colorimetric monitorization of carbon dioxide in a diversity of applications.
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Affiliation(s)
| | | | | | - Jordi Hernando
- *Correspondence: Rosa María Sebastián, ; Jordi Hernando,
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3
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Lauzon S, Caron L, Ollevier T. Efficient stereoselective synthesis of chiral 3,3′-dimethyl-(2,2′-bipyridine)-diol ligand and applications in Fe II-catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo00188d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A seven step synthesis of a chiral 2,2′-bipyridinediol ligand with 3,3′-dimethyl substituents was achieved starting from commercially available materials.
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4
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Zhu J, Zhu L, Wu Y, Cheng L, Wang H, Sun X, Shen J, Zhou Y, Ke Y. A novel C 2 symmetric chiral stationary phase with N-[(4-Methylphenyl)sulfonyl]-l-leucine as chiral side chains. J Sep Sci 2020; 43:2338-2348. [PMID: 32216077 DOI: 10.1002/jssc.202000163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 11/09/2022]
Abstract
In this study, a series of chiral stationary phases based on N-[(4-methylphenyl)sulfonyl]-l-leucine amide, whose enantiorecognition property has never been studied, were synthesized. Their enantioseparation abilities were chromatographically evaluated by 67 enantiomers. The chiral stationary phase derived from N-[(4-methylphenyl)sulfonyl]-l-leucine showed much better enantioselectivities than that based on N-(4-methylbenzoyl)-l-leucine amide. The construction of C2 symmetric chiral structure greatly improved the enantiorecognition performance of the stationary phase. The C2 symmetric chiral stationary phase exhibited superior enantioresolutions to other chiral stationary phases for most of the chiral analytes, especially for the chiral analytes with C2 symmetric structures. By comparing the enantioseparations of the enantiomers with similar structures, the importance of hydrogen bond interaction, π-π interaction, and steric hindrance on enantiorecognition was elucidated. The enantiorecognition mechanism of trans-N,N'-(1,2-diphenyl-1,2-ethanediyl)bis-acetamide, which had an excellent separation factor on the C2 symmetric chiral stationary phase, was investigated by 1 H-NMR spectroscopy and 2D 1 H-1 H nuclear overhauser enhancement spectroscopy.
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Affiliation(s)
- Junchen Zhu
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Lunan Zhu
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Yaling Wu
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Lingping Cheng
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Huiying Wang
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Xiaotong Sun
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Jiawei Shen
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Yang Zhou
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
| | - Yanxiong Ke
- Engineering Research Center of Pharmaceutical Process Chemistry, East China University of Science and Technology, Shanghai, P. R. China
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5
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Mamula O, Bark T, Quinodoz B, Stoeckli-Evans H, von Zelewsky A. Self-assembly of Ag(I) helicates with new enantiopure 5,6-Chiragen type ligands. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Cabrera JM, Tauber J, Krische MJ. Enantioselective Iridium-Catalyzed Phthalide Formation through Internal Redox Allylation of Phthalaldehydes. Angew Chem Int Ed Engl 2018; 57:1390-1393. [PMID: 29240280 DOI: 10.1002/anie.201712015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Indexed: 12/28/2022]
Abstract
An inside job: Enantioselective phthalide synthesis was achieved through internal redox allylation of o-phthalaldehydes. Oxidative esterification is balanced by reductive carbonyl addition to achieve an overall redox-neutral process. This method enabled formal syntheses of ent-spirolaxine methyl ether and CJ-12,954.
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Affiliation(s)
- James M Cabrera
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
| | - Johannes Tauber
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
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7
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Cabrera JM, Tauber J, Krische MJ. Enantioselective Iridium-Catalyzed Phthalide Formation through Internal Redox Allylation of Phthalaldehydes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- James M. Cabrera
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
| | - Johannes Tauber
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
| | - Michael J. Krische
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
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8
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9
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Kumbhar SV, Chen C. Enantioselective Nozaki–Hiyama–Kishi allylation-lactonization for the syntheses of 3-substituted phthalides. RSC Adv 2018; 8:41355-41357. [PMID: 35559290 PMCID: PMC9091628 DOI: 10.1039/c8ra09575b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 11/23/2018] [Indexed: 11/21/2022] Open
Abstract
A chromium-catalyzed enantioselective Nozaki–Hiyama–Kishi allylation of substituted (2-ethoxycarbonyl)benzaldehydes and subsequent lactonization to synthesize phthalides with an optimal enantioselectivity of 99%.
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Affiliation(s)
- Sharad V. Kumbhar
- Department of Chemistry
- National Dong Hwa University
- Hualien 974
- Taiwan
| | - Chinpiao Chen
- Department of Chemistry
- National Dong Hwa University
- Hualien 974
- Taiwan
- Department of Nursing
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10
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Wang G, Sun S, Mao Y, Xie Z, Liu L. Chromium(II)-catalyzed enantioselective arylation of ketones. Beilstein J Org Chem 2016; 12:2771-2775. [PMID: 28144349 PMCID: PMC5238525 DOI: 10.3762/bjoc.12.275] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 12/06/2016] [Indexed: 11/23/2022] Open
Abstract
The chromium-catalyzed enantioselective addition of carbo halides to carbonyl compounds is an important transformation in organic synthesis. However, the corresponding catalytic enantioselective arylation of ketones has not been reported to date. Herein, we report the first Cr-catalyzed enantioselective addition of aryl halides to both arylaliphatic and aliphatic ketones with high enantioselectivity in an intramolecular version, providing facile access to enantiopure tetrahydronaphthalen-1-ols and 2,3-dihydro-1H-inden-1-ols containing a tertiary alcohol.
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Affiliation(s)
- Gang Wang
- Shenzhen Research Institute of Shandong University, Shenzhen 518057, China
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Shutao Sun
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Ying Mao
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Zhiyu Xie
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Lei Liu
- Shenzhen Research Institute of Shandong University, Shenzhen 518057, China
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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11
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Wessjohann LA, Wild H, Ferreira LA, Schrekker HS. Synthesis of α-alkenyl-β-hydroxy adducts by α-addition of unprotected 4-bromocrotonic acid and amides with aldehydes and ketones by chromium(II)-mediated reactions. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ludger A. Wessjohann
- Leibniz Institute of Plant Biochemistry; Weinberg 3 D-06120 Halle (Saale) Germany
- Ludwig Maximilians Universität München; Butenandtstrasse 5-13, D-081377 München Germany
| | - Harry Wild
- Ludwig Maximilians Universität München; Butenandtstrasse 5-13, D-081377 München Germany
| | - Leonildo A. Ferreira
- Universidade Federal do Rio Grande do Sul; Institute of Chemistry; Av. Bento Gonçalves 9500 Porto Alegre - RS, CEP: 91.501-970 Brazil
| | - Henri S. Schrekker
- Leibniz Institute of Plant Biochemistry; Weinberg 3 D-06120 Halle (Saale) Germany
- Universidade Federal do Rio Grande do Sul; Institute of Chemistry; Av. Bento Gonçalves 9500 Porto Alegre - RS, CEP: 91.501-970 Brazil
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12
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Boobalan R, Chen C. An improved and efficient synthesis of pinene based bipyridyldiols and bipyridine. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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13
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Chen RY, Dhondge AP, Lee GH, Chen C. A Chiral Bipyridyl Alcohol for Catalytic Enantioselective Nozaki-Hiyama-Kishi Allylation of Aldehydes and Ketones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400945] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Hessler F, Betík R, Kadlčíková A, Belle R, Kotora M. Enantioselective Allylation of Selectedortho-Substituted Benzaldehydes: A Comparative Study. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403034] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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Pal P, Jana N, Nanda S. Asymmetric total synthesis of paecilomycin E, 10'-epi-paecilomycin E and 6'-epi-cochliomycin C. Org Biomol Chem 2014; 12:8257-74. [PMID: 25204742 DOI: 10.1039/c4ob01400f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric total syntheses of naturally occurring resorcylic acid lactone paecilomycin E and two of its structural congeners have been reported in this article. The major highlight of the synthetic venture is the application of the late stage Mitsunobu macrolactonization method (as it is difficult to achieve the desired products through the standard carboxyl activation method) of a properly functionalized seco-acid. The macrolactonization precursor was synthesized by applying an "E"-selective Julia-Kocienski olefination of a highly functionalized aromatic aldehyde and a sulphone, which constitutes all the stereocenters (C4', C5', C6' and C10'; 3S,7R,8R,9S) in the target molecule.
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Affiliation(s)
- Pratik Pal
- Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, India.
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16
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Shih YS, Boobalan R, Chen C, Lee GH. Novel C2-symmetric chiral O,N,N,O-tetradentate 2,2-bipyridyldiolpropane ligands: synthesis and application in asymmetric diethylzinc addition to aldehydes. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2013.12.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Motloch P, Valterová I, Kotora M. Enantioselective Allylation of Thiophene-2-carbaldehyde: Formal Total Synthesis of Duloxetine. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300849] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Petrignet J, Inack Ngi S, Abarbri M, Thibonnet J. Short and convenient synthesis of two natural phthalides by a copper(I) catalysed Sonogashira/oxacyclisation copper(I) process. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.12.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Rossi R, Bellina F, Lessi M, Manzini C. Development and applications of highly selective palladium-catalyzed monocoupling reactions of (cyclo)alkenes and 1,3-alkadienes bearing two or three electrophilic sites and bis(enol triflates) with terminal alkynes. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Boobalan R, Lee G, Chen C. Copper Complex of Aminoisoborneol Schiff Base Cu
2
(SBAIB‐d)
2
: An Efficient Catalyst for Direct Catalytic Asymmetric Nitroaldol (Henry) Reaction. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200337] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ramalingam Boobalan
- Department of Chemistry, National Dong Hwa University, Soufeng, Hualien 974, Taiwan, Republic of China, Fax: (+886)‐3‐836‐0475
| | - Gene‐Hsian Lee
- Instrumentation Center, College of Science, National Taiwan University, Taipei 106, Taiwan, Republic of China
| | - Chinpiao Chen
- Department of Chemistry, National Dong Hwa University, Soufeng, Hualien 974, Taiwan, Republic of China, Fax: (+886)‐3‐836‐0475
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Mirabdolbaghi R, Dudding T. An Indium-Mediated Allylative/Transesterification DFT-Directed Approach to Chiral C(3)-Functionalized Phthalides. Org Lett 2012; 14:3748-51. [DOI: 10.1021/ol301566f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Roya Mirabdolbaghi
- Department of Chemistry, Brock University, 500 Glenridge Avenue, St. Catharines, Ontario, Canada L2S 3A1
| | - Travis Dudding
- Department of Chemistry, Brock University, 500 Glenridge Avenue, St. Catharines, Ontario, Canada L2S 3A1
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22
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Dhondge AP, Shaikh AC, Chen C. A pineno-salen type catalyst for the enantioselective Nozaki–Hiyama–Kishi reaction. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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