1
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Ma C, Sun Y, Yang J, Guo H, Zhang J. Catalytic Asymmetric Synthesis of Tröger's Base Analogues with Nitrogen Stereocenter. ACS CENTRAL SCIENCE 2023; 9:64-71. [PMID: 36712492 PMCID: PMC9881208 DOI: 10.1021/acscentsci.2c01121] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Indexed: 06/18/2023]
Abstract
Nitrogen stereocenters are common chiral units in natural products, pharmaceuticals, and chiral catalysts. However, their research has lagged largely behind, compared with carbon stereocenters and other heteroatom stereocenters. Herein, we report an efficient method for the catalytic asymmetric synthesis of Tröger's base analogues with nitrogen stereocenters via palladium catalysis and home-developed GF-Phos. It allows rapid construction of a new rigid cleft-like structure with both a C- and a N-stereogenic center in high efficiency and selectivity. A variety of applications as a chiral organocatalyst and metallic catalyst precursors were demonstrated. Furthermore, DFT calculations suggest that the NH···O hydrogen bonding and weak interaction between the substrate and ligand are crucial for the excellent enantioselectivity control.
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Affiliation(s)
- Chun Ma
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Yue Sun
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Junfeng Yang
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
- Fudan
Zhangjiang Institute, Shanghai 201203, P. R. China
| | - Hao Guo
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
- Zhuhai
Fudan Innovation Institute, Zhuhai, 519000, P. R. China
| | - Junliang Zhang
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
- School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang, Henan 453007, P. R. China
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2
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Kazem-Rostami M. A nitrogen-based chiral catenane for enantioenriching photocatalytic aerobic oxidation. NEW J CHEM 2022. [DOI: 10.1039/d2nj03732g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Tröger's base's chirality merges catenanes’ photosensitizing characteristics to introduce the first nitrogen-based chiral hetero[2]catenane that proceeds enantioenriching photocatalytic aerobic oxidations.
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Affiliation(s)
- Masoud Kazem-Rostami
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
- Faculty of Science and Engineering, Macquarie University, North Ryde, NSW 2109, Australia
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3
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Xue J, Zhang J, Liu X, Huang T, Jiang H, Yin Y, Qin Y, Guiver MD. Toward alkaline-stable anion exchange membranes in fuel cells: cycloaliphatic quaternary ammonium-based anion conductors. ELECTROCHEM ENERGY R 2021. [DOI: 10.1007/s41918-021-00105-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Zullo V, Iuliano A, Guazzelli L. Sugar-Based Ionic Liquids: Multifaceted Challenges and Intriguing Potential. Molecules 2021; 26:2052. [PMID: 33916695 PMCID: PMC8038380 DOI: 10.3390/molecules26072052] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/26/2021] [Accepted: 03/29/2021] [Indexed: 01/29/2023] Open
Abstract
Carbohydrates represent a promising option in transitioning from oil-based chemical resources to renewable ones, with the goal of developing chemistries for a sustainable future. Cellulose, hemicellulose, and largely available monosaccharides already provide useful chemical building blocks, so-called platform chemicals, such as levulinic acid and hydroxymethyl furfural, as well as solvents like cyrene or gamma-valerolactone. Therefore, there is great anticipation for novel applications involving materials and chemicals derived from sugars. In the field of ionic liquids (ILs), sugar-based ILs have been overlooked for a long time, mainly on account of their multistep demanding preparation. However, exploring new strategies for accessing sugar-based ILs, their study, and their exploitation, are attracting increasing interest. This is due to the growing concerns about the negative (eco)toxicity profile of most ILs in conjunction with their non-sustainable nature. In the present review, a literature survey concerning the development of sugar-based ILs since 2011 is presented. Their preparation strategies and thermal behavior analyses, sorted by sugar type, make up the first two sections with the intention to provide the reader with a useful guide. A final overview of the potential applications of sugar-based ILs and their future perspectives complement the present analysis.
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Affiliation(s)
- Valerio Zullo
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, 56124 Pisa, Italy; (V.Z.); (A.I.)
| | - Anna Iuliano
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, 56124 Pisa, Italy; (V.Z.); (A.I.)
| | - Lorenzo Guazzelli
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 33, 56126 Pisa, Italy
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5
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Quaternized Tröger’s base polymer with crown ether unit for alkaline stable anion exchange membranes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136693] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Inoue K, Ishiwari F, Fukushima T. Selective synthesis of diazacyclooctane -containing flexible ladder polymers with symmetrically or unsymmetrically substituted side chains. Polym Chem 2020. [DOI: 10.1039/d0py00603c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a versatile synthetic method for selectively obtaining symmetrical or unsymmetrical N,N′-dialkylated DACO-containing flexible ladder polymers with various functionalities.
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Affiliation(s)
- Keiki Inoue
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Fumitaka Ishiwari
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Takanori Fukushima
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
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7
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Choi Y, Kim H, Park SB. A divergent synthetic pathway for pyrimidine-embedded medium-sized azacycles through an N-quaternizing strategy. Chem Sci 2018; 10:569-575. [PMID: 30746098 PMCID: PMC6335630 DOI: 10.1039/c8sc04061c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 10/18/2018] [Indexed: 11/21/2022] Open
Abstract
A new divergent synthetic pathway for skeletally distinct pyrimidine-containing medium-sized azacycles was developed. Diversity-generating reactions via selective bond cleavages or migrations from N-quaternized intermediates were designed, and 14 discrete core skeletons were synthesized in an efficient manner. The skeletal diversity of the resulting molecular frameworks was confirmed by chemoinformatic analysis.
Medium-sized heterocycles have recently received significant attention because of their potential roles as modulators of protein–protein interactions, but their molecular diversity and synthetic availability are still inadequate to meet the demand. To address these issues, we developed a new divergent synthetic pathway for skeletally distinct pyrimidine-containing medium-sized azacycles. We introduced N-quaternized pyrimidine-containing polyheterocycles as novel key intermediates for diversity-generating reactions via selective bond cleavages or migrations and prepared 14 discrete core skeletons in an efficient manner. The skeletal diversity of the resulting molecular frameworks was confirmed by chemoinformatic analysis.
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Affiliation(s)
- Yoona Choi
- CRI Center for Chemical Proteomics , Department of Chemistry , Seoul National University , 1 Gwanak-ro, Gwanak-gu , Seoul 08826 , Korea .
| | - Heejun Kim
- CRI Center for Chemical Proteomics , Department of Chemistry , Seoul National University , 1 Gwanak-ro, Gwanak-gu , Seoul 08826 , Korea .
| | - Seung Bum Park
- CRI Center for Chemical Proteomics , Department of Chemistry , Seoul National University , 1 Gwanak-ro, Gwanak-gu , Seoul 08826 , Korea .
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8
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Ozeryanskii VA, Vlasenko MP, Pozharskii AF, Sergeyev S, Maes BUW, Franck P, Herrebout WA. Proton Sponge Analogue of the Tröger's Base: A Compound with Remarkable Enantiomeric Stability. ChemistrySelect 2017. [DOI: 10.1002/slct.201701963] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Valery A. Ozeryanskii
- Department of Organic Chemistry; Southern Federal University; Zorge 7 344090 Rostov-on-Don Russian Federation
| | - Marina P. Vlasenko
- Department of Organic Chemistry; Southern Federal University; Zorge 7 344090 Rostov-on-Don Russian Federation
| | - Alexander F. Pozharskii
- Department of Organic Chemistry; Southern Federal University; Zorge 7 344090 Rostov-on-Don Russian Federation
| | - Sergey Sergeyev
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Bert U. W. Maes
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Philippe Franck
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Wouter A. Herrebout
- Molecular Spectroscopy, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171 2020 Antwerp Belgium
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9
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Ishiwari F, Takeuchi N, Sato T, Yamazaki H, Osuga R, Kondo JN, Fukushima T. Rigid-to-Flexible Conformational Transformation: An Efficient Route to Ring-Opening of a Tröger's Base-Containing Ladder Polymer. ACS Macro Lett 2017; 6:775-780. [PMID: 35650861 DOI: 10.1021/acsmacrolett.7b00385] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of ladder polymers is still a big challenge in polymer chemistry, and in particular, there are few examples of conformationally flexible well-defined ladder polymers. Here we report an efficient and convenient route to conformationally flexible ladder polymers, which is based on a postpolymerization reaction of a rigid ladder polymer containing Tröger's base in its main chain. The postpolymerization reaction involves sequential N-methylation and hydrolysis for the Tröger's base unit, resulting in a diazacyclooctane skeleton that can exhibit a ring-flipping motion. Molecular dynamics simulations predicted that this motion provides conformational flexibility with the resultant ladder polymer, which was demonstrated by 1H NMR spectroscopy in solution. The presence of the diazacyclooctane units in the flexible ladder polymer allowed further functionalization through reactions involving its secondary amine moiety. The present synthetic method may lead to the development of a new class of ladder polymers that exhibit both conformational and design flexibility.
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Affiliation(s)
- Fumitaka Ishiwari
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Nobuhiko Takeuchi
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Takahiro Sato
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Hiroshi Yamazaki
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Ryota Osuga
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Junko N. Kondo
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
| | - Takanori Fukushima
- Laboratory for Chemistry
and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8503, Japan
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10
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Shahi CK, Bhattacharyya A, Nanaji Y, Ghorai MK. A Stereoselective Route to Tetrahydrobenzoxazepines and Tetrahydrobenzodiazepines via Ring-Opening and Aza-Michael Addition of Activated Aziridines with 2-Hydroxyphenyl and 2-Aminophenyl Acrylates. J Org Chem 2016; 82:37-47. [DOI: 10.1021/acs.joc.6b01919] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chandan Kumar Shahi
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | | | - Yerramsetti Nanaji
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Manas K. Ghorai
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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11
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Pereira R, Ondrisek P, Kubincová A, Otth E, Cvengroš J. Mild Stereoselective Intermolecular Acetoxylation and Azidation of α-C−H Bonds in Tröger's Bases. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Raul Pereira
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| | - Pavol Ondrisek
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| | - Alžbeta Kubincová
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| | - Elisabeth Otth
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| | - Ján Cvengroš
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
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12
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Yuan R, Li MQ, Xu JB, Huang SY, Zhou SL, Zhang P, Liu JJ, Wu H. Synthesis and optical properties of novel Tröger's base derivatives. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Dawaigher S, Månsson K, Ascic E, Artacho J, Mårtensson R, Loganathan N, Wendt OF, Harmata M, Snieckus V, Wärnmark K. A Protocol for the exo-Mono and exo,exo-Bis Functionalization of the Diazocine Ring of Tröger's Base. J Org Chem 2015; 80:12006-14. [PMID: 26597045 DOI: 10.1021/acs.joc.5b01921] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient protocol has been developed for the exo-mono and exo,exo-bis functionalization of Tröger's base in the benzylic 6 and 12 positions of the diazocine ring. The lithiation of Tröger's base using s-BuLi/TMEDA followed by electrophilic quench affords exo-mono- and exo,exo-bis-substituted derivatives of Tröger's base in good to excellent yields. The variation of the number of equivalents of s-BuLi/TMEDA and the order of addition of the electrophile strongly govern the outcome of the reaction for each electrophile.
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Affiliation(s)
- Sami Dawaigher
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , P.O. Box 124, 221 00 Lund, Sweden
| | - Kristoffer Månsson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , P.O. Box 124, 221 00 Lund, Sweden
| | - Erhad Ascic
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , P.O. Box 124, 221 00 Lund, Sweden.,Department of Chemistry, Queen's University , Kingston, ON K7L 3N6, Canada
| | - Josep Artacho
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , P.O. Box 124, 221 00 Lund, Sweden
| | - Roger Mårtensson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , P.O. Box 124, 221 00 Lund, Sweden
| | - Nagarajan Loganathan
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , P.O. Box 124, 221 00 Lund, Sweden
| | - Ola F Wendt
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , P.O. Box 124, 221 00 Lund, Sweden
| | - Michael Harmata
- Department of Chemistry, University of Missouri-Columbia , Columbia, Missouri 65211, United States
| | - Victor Snieckus
- Department of Chemistry, Queen's University , Kingston, ON K7L 3N6, Canada
| | - Kenneth Wärnmark
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , P.O. Box 124, 221 00 Lund, Sweden
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14
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Ghorai MK, Shahi CK, Bhattacharyya A, Sayyad M, Mal A, Wani IA, Chauhan N. Syntheses of Tetrahydrobenzodiazepines via SN2-Type Ring-Opening of Activated Aziridines with 2-Bromobenzylamine Followed by Copper-Powder-Mediated C−N Bond Formation. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500224] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Chandan Kumar Shahi
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Aditya Bhattacharyya
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Masthanvali Sayyad
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Abhijit Mal
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Imtiyaz Ahmad Wani
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
| | - Navya Chauhan
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016, Uttar Pradesh India
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15
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Pujari SA, Besnard C, Bürgi T, Lacour J. A Mild and Efficient CH2-Extrusion Reaction for the Enantiospecific Synthesis of Highly Configurationally Stable Tröger Bases. Angew Chem Int Ed Engl 2015; 54:7520-3. [DOI: 10.1002/anie.201500435] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 03/11/2015] [Indexed: 01/16/2023]
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16
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Pujari SA, Besnard C, Bürgi T, Lacour J. A Mild and Efficient CH2-Extrusion Reaction for the Enantiospecific Synthesis of Highly Configurationally Stable Tröger Bases. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Weatherly CA, Na YC, Nanayakkara YS, Woods RM, Sharma A, Lacour J, Armstrong DW. Reprint of: Enantiomeric separation of functionalized ethano-bridged Tröger bases using macrocyclic cyclofructan and cyclodextrin chiral selectors in high-performance liquid chromatography and capillary electrophoresis with application of principal component analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 968:40-8. [DOI: 10.1016/j.jchromb.2014.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 01/31/2014] [Indexed: 12/29/2022]
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18
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Weatherly CA, Na YC, Nanayakkara YS, Woods RM, Sharma A, Lacour J, Armstrong DW. Enantiomeric separation of functionalized ethano-bridged Tröger bases using macrocyclic cyclofructan and cyclodextrin chiral selectors in high-performance liquid chromatography and capillary electrophoresis with application of principal component analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 955-956:72-80. [DOI: 10.1016/j.jchromb.2014.01.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 01/29/2014] [Accepted: 01/31/2014] [Indexed: 12/16/2022]
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19
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Havlík M, Dolenský B, Jakubek M, Král V. Synthesis of Unsymmetrical Tröger's Bases Bearing Groups Sensitive to Reduction. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301517] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Wang B, Gu Z. Highly efficient and practical resolution of 2,3:6,7-dibenzobicyclo[3.3.1]nona-2,6-diene-4,8-dione and stereoselective synthesis of its chiral diamine derivatives. Org Chem Front 2014. [DOI: 10.1039/c4qo00011k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rigid V-shaped molecule (±)-4 could be efficiently resolved by commercially available BINOL in high enantiomeric excesses.
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Affiliation(s)
- Bin Wang
- Department of Chemistry
- University of Science and Technology of China
- Hefei, P. R. China
| | - Zhenhua Gu
- Department of Chemistry
- University of Science and Technology of China
- Hefei, P. R. China
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21
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Tomioka T, Sankranti R, Yamada T, Clark C. n-BuLi/LiCH2CN-Mediated One-Carbon Homologation of Aryl Epoxides into Conjugated Allyl Alcohols. Org Lett 2013; 15:5099-101. [DOI: 10.1021/ol402466y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takashi Tomioka
- Department of Chemistry and Biochemistry, University of Mississippi , University, Mississippi 38677, United States
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22
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Rowley JH, Yau SC, Kariuki BM, Kennedy AR, Tomkinson NCO. Readily accessible chiral at nitrogen cage structures. Org Biomol Chem 2013; 11:2198-205. [PMID: 23403456 DOI: 10.1039/c3ob27458f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of glycine-N-methyl amide with paraformaldehyde in the presence of ytterbium triflate (1 mol%) leads to a novel cage structure 6 which is chiral at nitrogen. Single crystal X-ray analysis and DFT calculations suggest this cage structure is rigid and adopts a single low energy conformation. Use of single enantiomer α-amino amides results in two diastereomeric tertiary amines that differ in their absolute configuration at nitrogen. These diastereoisomers interconvert under acidic conditions but are configurationally stable under basic conditions and can be readily separated by either crystallisation or column chromatography. By reacting racemic chiral α-amino amides a third diastereomeric cage can also be isolated through this reaction protocol. Preparation of mixed cages by reacting two different α-amino amides is also possible allowing for greater structural diversity in the products to be attained. Preliminary mechanistic studies show that all three methylene units in the cage structure are labile and can be replaced under acidic reaction conditions.
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Affiliation(s)
- Julian H Rowley
- WestCHEM, Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
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23
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Rúnarsson ÖV, Artacho J, Wärnmark K. The 125thAnniversary of the Tröger's Base Molecule: Synthesis and Applications of Tröger's Base Analogues. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201249] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Artacho J, Ascic E, Rantanen T, Wallentin CJ, Dawaigher S, Bergquist KE, Harmata M, Snieckus V, Wärnmark K. Tröger’s Base Twisted Amides: Endo Functionalization and Synthesis of an Inverted Crown Ether. Org Lett 2012; 14:4706-9. [DOI: 10.1021/ol302022y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Josep Artacho
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Erhad Ascic
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Toni Rantanen
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Carl-Johan Wallentin
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Sami Dawaigher
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Karl-Erik Bergquist
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Michael Harmata
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Victor Snieckus
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Kenneth Wärnmark
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden, Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States, and Snieckus Innovations and Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
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Artacho J, Ascic E, Rantanen T, Karlsson J, Wallentin CJ, Wang R, Wendt OF, Harmata M, Snieckus V, Wärnmark K. Twisted Amide Analogues of Tröger’s Base. Chemistry 2012; 18:1038-42. [DOI: 10.1002/chem.201103228] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Indexed: 11/07/2022]
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Sharma A, Besnard C, Guénée L, Lacour J. Asymmetric synthesis of ethano-Tröger bases using CuTC-catalyzed diazo decomposition reactions. Org Biomol Chem 2012; 10:966-9. [DOI: 10.1039/c1ob06751f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Révész Á, Schröder D, Rokob TA, Havlík M, Dolenský B. Identification and interconversion of diastereomeric oligo-Tröger bases probed by ion mobility mass spectrometry. Phys Chem Chem Phys 2012; 14:6987-95. [DOI: 10.1039/c2cp40585g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Malik QM, Mahon AB, Craig DC, Try AC. Reaction of Tröger’s base analogues with Vilsmeier reagents. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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One-Step Catalytic Asymmetric Synthesis of Configurationally Stable Tröger Bases. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100134] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Sharma A, Guénée L, Naubron JV, Lacour J. One-Step Catalytic Asymmetric Synthesis of Configurationally Stable Tröger Bases. Angew Chem Int Ed Engl 2011; 50:3677-80. [DOI: 10.1002/anie.201100134] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Indexed: 11/06/2022]
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Veale EB, Gunnlaugsson T. Synthesis, Photophysical, and DNA Binding Studies of Fluorescent Tröger’s Base Derived 4-Amino-1,8-naphthalimide Supramolecular Clefts. J Org Chem 2010; 75:5513-25. [DOI: 10.1021/jo1005697] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Emma B. Veale
- School of Chemistry, Center for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry, Center for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland
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