1
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Vang ZP, Sonstrom RE, Scolati HN, Clark JR, Pate BH. Assignment of the absolute configuration of molecules that are chiral by virtue of deuterium substitution using chiral tag molecular rotational resonance spectroscopy. Chirality 2023; 35:856-883. [PMID: 37277968 PMCID: PMC11102577 DOI: 10.1002/chir.23596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 06/07/2023]
Abstract
Chiral tag molecular rotational resonance (MRR) spectroscopy is used to assign the absolute configuration of molecules that are chiral by virtue of deuterium substitution. Interest in the improved performance of deuterated active pharmaceutical ingredients has led to the development of precision deuteration reactions. These reactions often generate enantioisotopomer reaction products that pose challenges for chiral analysis. Chiral tag rotational spectroscopy uses noncovalent derivatization of the enantioisotopomer to create the diastereomers of the 1:1 molecular complexes of the analyte and a small, chiral molecule. Assignment of the absolute configuration requires high-confidence determinations of the structures of these weakly bound complexes. A general search method, CREST, is used to identify candidate geometries. Subsequent geometry optimization using dispersion corrected density functional theory gives equilibrium geometries with sufficient accuracy to identify the isomers of the chiral tag complexes produced in the pulsed jet expansion used to introduce the sample into the MRR spectrometer. Rotational constant scaling based on the fact that the diastereomers have the same equilibrium geometry gives accurate predictions allowing identification of the homochiral and heterochiral tag complexes and, therefore, assignment of absolute configuration. The method is successfully applied to three oxygenated substrates from enantioselective Cu-catalyzed alkene transfer hydrodeuteration reaction chemistry.
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Affiliation(s)
- Zoua Pa Vang
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin, USA
| | - Reilly E. Sonstrom
- Department of Chemistry, University of Virginia, Charlottesville, Virginia, USA
- BrightSpec Inc, Charlottesville, Virginia, USA
| | - Haley N. Scolati
- Department of Chemistry, University of Virginia, Charlottesville, Virginia, USA
| | - Joseph R. Clark
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin, USA
| | - Brooks H. Pate
- Department of Chemistry, University of Virginia, Charlottesville, Virginia, USA
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2
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Senda R, Watanabe Y, Miwa S, Sato A, Kitagawa O. Synthesis of Isotopic Atropisomers Based on 12C/ 13C Discrimination. J Org Chem 2023. [PMID: 37300502 DOI: 10.1021/acs.joc.3c01004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Quinazolin-4-one derivatives possessing an isotopic atropisomerism (isotopic N-C axial chirality) based on ortho-12CH3/13CH3 discrimination were prepared. The diastereomeric quinazolin-4-ones bearing an asymmetric carbon as well as an isotopic atropisomerism were clearly discriminated by 1H and 13C NMR spectra and revealed to possess high rotational stability and stereochemical purity.
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Affiliation(s)
- Ryunosuke Senda
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Yuka Watanabe
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Shota Miwa
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Azusa Sato
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Osamu Kitagawa
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
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3
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Mills MD, Sonstrom RE, Vang ZP, Neill JL, Scolati HN, West CT, Pate BH, Clark JR. Enantioselective Synthesis of Enantioisotopomers with Quantitative Chiral Analysis by Chiral Tag Rotational Spectroscopy. Angew Chem Int Ed Engl 2022; 61:e202207275. [PMID: 35700045 PMCID: PMC9403034 DOI: 10.1002/anie.202207275] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Indexed: 01/13/2023]
Abstract
Fundamental to the synthesis of enantioenriched chiral molecules is the ability to assign absolute configuration at each stereogenic center, and to determine the enantiomeric excess for each compound. While determination of enantiomeric excess and absolute configuration is often considered routine in many facets of asymmetric synthesis, the same determinations for enantioisotopomers remains a formidable challenge. Here, we report the first highly enantioselective metal‐catalyzed synthesis of enantioisotopomers that are chiral by virtue of deuterium substitution along with the first general spectroscopic technique for assignment of the absolute configuration and quantitative determination of the enantiomeric excess of isotopically chiral molecules. Chiral tag rotational spectroscopy uses noncovalent chiral derivatization, which eliminates the possibility of racemization during derivatization, to perform the chiral analysis without the need of reference samples of the enantioisotopomer.
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Affiliation(s)
- Mitchell D Mills
- Department of Chemistry, Marquette University, Milwaukee, WI 53233, USA
| | - Reilly E Sonstrom
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA
| | - Zoua Pa Vang
- Department of Chemistry, Marquette University, Milwaukee, WI 53233, USA
| | - Justin L Neill
- BrightSpec Inc., 770 Harris Street Suite 104b, Charlottesville, VA 22903, USA
| | - Haley N Scolati
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA
| | - Channing T West
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA
| | - Brooks H Pate
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA
| | - Joseph R Clark
- Department of Chemistry, Marquette University, Milwaukee, WI 53233, USA
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4
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Akter M, Rupa K, Anbarasan P. 1,2,3-Triazole and Its Analogues: New Surrogates for Diazo Compounds. Chem Rev 2022; 122:13108-13205. [DOI: 10.1021/acs.chemrev.1c00991] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Monalisa Akter
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Kavuri Rupa
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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5
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Pate BH, Mills MD, Sonstrom RE, Vang ZP, Neill JL, Scolati HN, West CT, Clark JR. Enantioselective Synthesis of Enantioisotopomers with Quantitative Chiral Analysis by Chiral Tag Rotational Spectroscopy. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207275] [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)
- Brooks H. Pate
- University of Virginia Department of Chemistry McCormick RoadP.O. Box 400319 22904-4319 Charlottesville UNITED STATES
| | | | | | | | - Justin L. Neill
- BrightSpec NA 770 Harris St.Suite 104b 22903 Charlottesville UNITED STATES
| | | | | | - Joseph R. Clark
- Marquette University Chemistry Department of ChemistryMarquette University 53233 Milwaukee UNITED STATES
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6
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Voloshkin VA, Kotovshchikov YN, Latyshev GV, Lukashev NV, Beletskaya IP. Annulation-Triggered Denitrogenative Transformations of 2-(5-Iodo-1,2,3-triazolyl)benzoic Acids. J Org Chem 2022; 87:7064-7075. [PMID: 35583492 DOI: 10.1021/acs.joc.2c00235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The ability of [1,2,3]triazolobenzoxazinones to act as a source of "hidden" diazo group was discovered. These diazo precursors can be easily prepared by the intramolecular cyclization of 2-(5-iodo-1,2,3-triazolyl)benzoic acids. The Cu-catalyzed capture of the hidden diazo group allows for further functionalization through the denitrogenative pathway. The transformations proceed via the formation of either diazoimine or diazoamide intermediates. Novel routes to various anthranilamides as well as thiolated benzoxazinones were developed using the one-pot cyclization/diazo capture procedure.
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Affiliation(s)
- Vladislav A Voloshkin
- Chemistry Department, M. V. Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Yury N Kotovshchikov
- Chemistry Department, M. V. Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Gennadij V Latyshev
- Chemistry Department, M. V. Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Nikolay V Lukashev
- Chemistry Department, M. V. Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Irina P Beletskaya
- Chemistry Department, M. V. Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
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7
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Liu Y, Chen Y, Yihuo A, Zhou Y, Liu X, Lin L, Feng X. Diastereodivergent Synthesis of Chiral α-Aminoketones via a Catalytic O–H Insertion/Barnes–Claisen Rearrangement Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05789] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yun Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yushuang Chen
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Aying Yihuo
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
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8
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Miura T, Ishihara Y, Nakamuro T, Moritani S, Nagata Y, Murakami M. Synthesis, Structure, and Dynamics of Chiral Eight-Membered Cyclic Molecules with Thienylene and Cyclopropylene Units Alternately Connected. Chemistry 2021; 28:e202103962. [PMID: 34928539 DOI: 10.1002/chem.202103962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Indexed: 11/09/2022]
Abstract
A rhodium(II)-catalyzed asymmetric cyclooligomerization of bifunctional monomers possessing triazolyl and vinyl groups at 2,3- and 3,4-positions on the thiophene ring is studied. Structurally interesting cyclic dimers in which thienylene and cyclopropylene units are alternately connected are obtained as the major components. The eight-membered rings in the center are non-planar and adopt a tub-shaped conformation. We also observe the phenomenon of racemization caused by a tub-to-tub ring-flipping, the activation energy of which is determined as 108 kJ mol -1 by electronic circular dichroism spectra measurement.
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Affiliation(s)
- Tomoya Miura
- Okayama University, Division of Applied Chemistry, Tsushimanaka 3-1-1, 700-8530, Okayama, JAPAN
| | - Yumi Ishihara
- Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, JAPAN
| | - Takayuki Nakamuro
- Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, JAPAN
| | - Shunsuke Moritani
- Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, JAPAN
| | - Yuuya Nagata
- Hokkaido University, Institute for Chemical Reaction Design and Discovery, JAPAN
| | - Masahiro Murakami
- Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, JAPAN
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9
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Jablasone ST, Ye Z, Duan S, Xu ZF, Li CY. Synthesis of benzothiazonine by rhodium-catalyzed denitrogenative transannulation of 1-sulfonyl-1,2,3-triazole and thiochromone. Org Biomol Chem 2021; 19:5758-5761. [PMID: 34124725 DOI: 10.1039/d1ob00419k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile synthesis of multi-functionalized benzothiazonine was achieved by the rhodium-catalyzed denitrogenative annulation of 1-sulfonyl-1,2,3-triazole and thiochromone. In view of the excellent atom economy, broad substrate scope and easy availability of starting materials, the protocol provided an efficient strategy for the construction of medium N,S-heterocycles.
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Affiliation(s)
- Saygbechi T Jablasone
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
| | - Zihang Ye
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
| | - Shengguo Duan
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
| | - Ze-Feng Xu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
| | - Chuan-Ying Li
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
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10
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Wang J, Oruganti B, Durbeej B. Computational Comparison of Chemical and Isotopic Approaches to Control the Photoisomerization Dynamics of Light-Driven Molecular Motors. J Org Chem 2021; 86:5552-5559. [PMID: 33784457 PMCID: PMC8154570 DOI: 10.1021/acs.joc.1c00063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
![]()
Synthetic molecular
motors driven by E/Z photoisomerization
reactions are able to produce unidirectional
rotary motion because of a structural asymmetry that makes one direction
of rotation more probable than the other. In most such motors, this
asymmetry is realized through the incorporation of a chemically asymmetric
carbon atom. Here, we present molecular dynamics simulations based
on multiconfigurational quantum chemistry to investigate whether the
merits of this approach can be equaled by an alternative approach
that instead exploits isotopic chirality. By first considering an N-methylpyrrolidine–cyclopentadiene motor design,
it is shown that isotopically chiral variants of this design undergo
faster photoisomerizations than a chemically chiral counterpart, while
maintaining rotary photoisomerization quantum yields of similarly
high magnitude. However, by subsequently considering a pyrrolinium–cyclopentene
design, it is also found that the introduction of isotopic chirality
does not provide any control of the directionality of the photoinduced
rotations within this framework. Taken together, the results highlight
both the potential usefulness of isotopic rather than chemical chirality
for the design of light-driven molecular motors, and the need for
further studies to establish the exact structural circumstances under
which this asymmetry is best exploited.
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Affiliation(s)
- Jun Wang
- Institut de Química Computacional i Catàlisi, Facultat de Ciències, Universitat de Girona, ES-17003 Girona, Spain
| | - Baswanth Oruganti
- Department of Chemistry and Biomedical Sciences, Faculty of Health and Life Sciences, Linnaeus University, SE-45041 Kalmar, Sweden
| | - Bo Durbeej
- Division of Theoretical Chemistry, IFM, Linköping University, SE-58183 Linköping, Sweden
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11
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Saito F, Gerbig D, Becker J, Schreiner PR. Breaking the Symmetry of a Meso Compound by Isotopic Substitution: Synthesis and Stereochemical Assignment of Monodeuterated cis-Perhydroazulene. Org Lett 2021; 23:113-117. [PMID: 33306399 DOI: 10.1021/acs.orglett.0c03795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis and absolute configuration of monodeuterated cis-perhydroazulene (d1-1), which is a rare example of an isotopically chiral hydrocarbon whose synthesis and stereochemical analysis are known to be particularly difficult. The synthesis features nickel-boride-catalyzed deuteration that allowed formation of the diastereomerically pure cis-fused bicyclic system in d1-1. The vibrational circular dichroism results are in excellent agreement with the computed spectrum at ωB97XD/aug-cc-pVTZ, allowing unambiguous assignment of the absolute configuration of d1-1.
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Affiliation(s)
- Fumito Saito
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Dennis Gerbig
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Jonathan Becker
- Institute of Inorganic and Analytical Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
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12
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Naret T, Lesot P, Puente AR, Polavarapu PL, Buisson DA, Crassous J, Pieters G, Feuillastre S. Chemical Synthesis of [ 2H]-Ethyl Tosylate and Exploration of Its Crypto-optically Active Character Combining Complementary Spectroscopic Tools. Org Lett 2020; 22:8846-8849. [PMID: 33141582 DOI: 10.1021/acs.orglett.0c03219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Small chiral molecules are excellent candidates to push the boundaries of enantiodiscrimination analytical techniques. Here is reported the synthesis of two new deuterated chiral probes, (R)- and (S)-[2H]-ethyl tosylate, obtained with high enantiomeric excesses. Due to their crypto-optically active properties, the discrimination of each enantiomer is challenging. Whereas their enantiopurity is determined by 2H NMR in chiral anisotropic media, their identification was performed by combining quantum chemical calculations and vibrational circular dichroism analysis.
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Affiliation(s)
- Timothée Naret
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, F-91191 Gif-sur-Yvette, France
| | - Philippe Lesot
- Université Paris-Saclay, ICMMO, UMR CNRS 8182, RMN en Milieu Orienté, F-91405 Orsay cedex, France
| | - Andrew R Puente
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Prasad L Polavarapu
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - David-Alexandre Buisson
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, F-91191 Gif-sur-Yvette, France
| | - Jeanne Crassous
- Univ. Rennes, Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Campus de Beaulieu, F-35042 Rennes cedex, France
| | - Grégory Pieters
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, F-91191 Gif-sur-Yvette, France
| | - Sophie Feuillastre
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, F-91191 Gif-sur-Yvette, France
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13
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Miura T, Nakamuro T, Ishihara Y, Nagata Y, Murakami M. Chiral Macrocycles Having C 3 Symmetry Resulting from Orientation of Thiophene Rings. Angew Chem Int Ed Engl 2020; 59:20475-20479. [PMID: 32770591 DOI: 10.1002/anie.202009781] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/06/2020] [Indexed: 12/20/2022]
Abstract
An chiral RhII -catalyzed cyclooligomerization reaction of thiophenes having triazolyl and vinyl substituents at the 2- and 4-positions was studied. Structurally interesting cyclic trimers, having chirality that is ascribed only to the orientation of the 2,4-disubstituted thiophene rings, are obtained. The 2,4-disubstitution of the starting thiophene monomer allows production of each of the enantiomers. The observed electronic circular-dichroism spectra are in accord with those simulated by density-functional theory calculations.
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Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Takayuki Nakamuro
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan.,Present address: Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yumi Ishihara
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Yuuya Nagata
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan.,Present address: Institute for Chemical Reaction Design and Discovery, Hokkaido University, Kita 21 Nishi 10, Kita-Ku, Sapporo, Hokkaido, 001-0021, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
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14
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Miura T, Nakamuro T, Ishihara Y, Nagata Y, Murakami M. Chiral Macrocycles Having
C
3
Symmetry Resulting from Orientation of Thiophene Rings. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
| | - Takayuki Nakamuro
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
- Present address: Department of Chemistry The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yumi Ishihara
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
| | - Yuuya Nagata
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
- Present address: Institute for Chemical Reaction Design and Discovery Hokkaido University Kita 21 Nishi 10, Kita-Ku Sapporo, Hokkaido 001-0021 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
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15
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Wang J, Oruganti B, Durbeej B. Unidirectional Rotary Motion in Isotopically Chiral Molecular Motors: A Computational Analysis. Org Lett 2020; 22:7113-7117. [PMID: 32822192 PMCID: PMC7506945 DOI: 10.1021/acs.orglett.0c02436] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
Molecular dynamics
simulations are performed to explore if isotopic chirality can induce
unidirectional rotary motion in molecular motors operated through
double-bond photoisomerizations. Using a high-quantum yield motor
featuring a chemically asymmetric carbon atom as reference, it is
found that isotopically chiral counterparts of this motor sustain
such motion almost equally well. Overall, the study reveals a previously
unexplored role for isotopic chirality in the design of rotary molecular
motors.
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Affiliation(s)
- Jun Wang
- Division of Theoretical Chemistry, IFM, Linköping University, SE-58183 Linköping, Sweden.,Institut de Química Computacional i Catàlisi, Facultat de Ciències, Universitat de Girona, ES-17003 Girona, Spain
| | - Baswanth Oruganti
- Department of Chemistry and Biomedical Sciences, Faculty of Health and Life Sciences, Linnaeus University, SE-45041 Kalmar, Sweden
| | - Bo Durbeej
- Division of Theoretical Chemistry, IFM, Linköping University, SE-58183 Linköping, Sweden
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16
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Merten C. Recent Advances in the Application of Vibrational Circular Dichroism Spectroscopy for the Characterization of Asymmetric Catalysts. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000876] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Christian Merten
- Fakultät für Chemie und Biochemie Organische Chemie II Ruhr Universität Bochum Universitätsstraße 150 44801 Bochum Germany
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17
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Saito F, Schreiner PR. Determination of the Absolute Configurations of Chiral Alkanes – An Analysis of the Available Tools. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000711] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Fumito Saito
- Institute of Organic Chemistry Justus Liebig University Heinrich‐Buff‐Ring 17 35392 Giessen Germany
| | - Peter R. Schreiner
- Institute of Organic Chemistry Justus Liebig University Heinrich‐Buff‐Ring 17 35392 Giessen Germany
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18
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Xu Z, Wang W, Cen M, Feng Z, Duan S, Li C. Synthesis of α‐(2‐Hydroxyphenyl)‐α‐Aminoketones by Rhodium‐Catalyzed Tandem Reaction of 1‐Sulfonyl‐1,2,3‐Triazoles and Benzoquinone‐Derived Alcohols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000487] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ze‐Feng Xu
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
- Key Laboratory of Organofluorine ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Weipeng Wang
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
| | - Mengjie Cen
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
| | - Zijuan Feng
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
| | - Shengguo Duan
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
| | - Chuan‐Ying Li
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
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19
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Cen M, Xiang Q, Xu Y, Duan S, Lv Y, Xu ZF, Li CY. Synthesis of α-cyano sulfone via thermal rearrangement of 1,4-disubstituted triazole mediated by carbene and radical species. Org Chem Front 2020. [DOI: 10.1039/c9qo01340g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
α-Cyano sulfone is produced conveniently from 1,4-disubstituted triazole, which involves carbene, ketenimine and radical species as the key intermediates.
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Affiliation(s)
- Mengjie Cen
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Qiaoyi Xiang
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Yiwen Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Shengguo Duan
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Yaohong Lv
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Ze-Feng Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
- Key Laboratory of Organofluorine Chemistry
| | - Chuan-Ying Li
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
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