1
|
Dunkel P, Bogdán D, Deme R, Zimber Á, Ballayová V, Csizmadia E, Kontra B, Kalydi E, Bényei A, Mátyus P, Mucsi Z. C(sp 3)-H cyclizations of 2-(2-vinyl)phenoxy- tert-anilines. RSC Adv 2024; 14:16784-16800. [PMID: 38784409 PMCID: PMC11112676 DOI: 10.1039/d3ra08974f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
1,5-hydride transfer-triggered cyclization reactions offering a robust method for C(sp3)-C(sp3) coupling and the synthesis of e.g. tetrahydroquinolines have been thoroughly investigated in the literature. Catalysts allowing milder reaction conditions or the development of enantioselective processes were important recent contributions to the field, as well as the studies on subtrates with oxygen or sulfur heteroatoms (besides the originally described nitrogen heterocycles). In a series of studies, we focused on expanded, higher order H-transfers/cyclizations by positioning the interacting substituents on distanced rings. Cyclizations of appropriately functionalized biaryl and fused bicyclic systems led to 7-9 membered rings. In the frame of this research, we set out to study the feasibility of the cyclization and the factors affecting it by in silico methods. The conclusions drawn from computational studies were complemented by cyclization screens on 2-(2-vinyl)phenoxy-tert-anilines and their CH2-expanded analogues, the results of which are presented here. Besides isolating the expected oxazonine products in several cases, we also observed a unique dimer formation, leading to an interesting 5-6-5 ring system.
Collapse
Affiliation(s)
- Petra Dunkel
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
| | - Dóra Bogdán
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
| | - Ruth Deme
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
| | - Ádám Zimber
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
| | - Veronika Ballayová
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
- Department of Chemical Drugs, Masaryk University Palackého 1946/1 612 00 Brno Czech Republic
| | - Eszter Csizmadia
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
| | - Bence Kontra
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
- Department of Biological Chemistry, Brain Vision Center Liliom utca 43-45 H-1094 Budapest Hungary
| | - Eszter Kalydi
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
| | - Attila Bényei
- Institute of Physical Chemistry, University of Debrecen Egyetem tér 1 H-4010 Debrecen Hungary
| | - Péter Mátyus
- Department of Organic Chemistry, Semmelweis University Hőgyes Endre utca 7 H-1092 Budapest Hungary
- University of Veterinary Medicine István utca 2 H-1078 Budapest Hungary
| | - Zoltán Mucsi
- Department of Biological Chemistry, Brain Vision Center Liliom utca 43-45 H-1094 Budapest Hungary
- Department of Chemistry, Femtonics Ltd Tűzoltó utca 59 H-1094 Budapest Hungary
- Institute of Chemistry, University of Miskolc Egyetem út 1 H-3515 Miskolc Hungary
| |
Collapse
|
2
|
Berdnikova DV. Aurones: Unexplored Visible-Light Photoswitches for Aqueous Medium. Chemistry 2024; 30:e202304237. [PMID: 38302861 DOI: 10.1002/chem.202304237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/03/2024]
Abstract
The development of synthetically accessible photoswitches showing an efficient performance in aqueous medium has recently become an urgent task due to the rapid progress of photopharmacology and novel biomedical applications. In response to this challenge, in this work, aurone derivatives are introduced as a novel class of efficient visible-light photoswitches for aqueous medium. In general, aurones exhibit superior performance in water, including significantly higher quantum yields, compared with other indigoid photoswitches (hemithioindigo and hemiindigo). Especially remarkable are the half-lives of the photoinduced E-isomers of aurones in water, reaching up to 7 years. Further modification of the aurone scaffold with substituents that increase water solubility does not affect most of the photoswitching characteristics and even improves some them. The highly advantageous property profile of the aurone photoswitches make them a perfect novel platform for the design of light-controllable systems in the areas requiring photoswitching in aqueous medium.
Collapse
Affiliation(s)
- Daria V Berdnikova
- Organische Chemie II, Universität Siegen, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| |
Collapse
|
3
|
Hong P, Liu J, Qin KX, Tian R, Peng LY, Su YS, Gan Z, Yu XX, Ye L, Zhu MQ, Li C. Towards Optical Information Recording: A Robust Visible-Light-Driven Molecular Photoswitch with the Ring-Closure Reaction Yield Exceeding 96.3 . Angew Chem Int Ed Engl 2024; 63:e202316706. [PMID: 38126129 DOI: 10.1002/anie.202316706] [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: 11/04/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023]
Abstract
Diarylethene molecular photoswitches hold great fascination as optical information materials due to their unique bistability and exceptional reversible photoswitching properties. Conventional diarylethenes, however, rely on UV light for ring-closure reactions, typically with modest yields. For practical application, diarylethenes driven by visible lights are preferred but achieving high ring-closure reaction yield remains a significant challenge. Herein, we synthesized a novel all-visible-light-driven photoswitch, TPAP-DTE, by facilely endcapping the dithienylethene (DTE) core with triphenylamine phenyl (TPAP) groups. Owing to the electron-donating conjugation effect of TPAP, the open-form TPAP-DTE responds strongly to short-wavelength visible lights with considerable photocyclization quantum yields and molar absorption coefficient. Upon 405 nm visible-light irradiation, TPAP-DTE achieves a ring-closure reaction yield exceeding 96.3 % (confirmed by both nuclear magnetic resonance spectroscopy and high-performance liquid chromatography). Its ring-opening reaction yield is 100 % upon irradiation with long-wavelength visible light. TPAP-DTE could be regarded as a bidirectional "quasi"-quantitative conversion molecular switch. Furthermore, TPAP-DTE exhibits robust fatigue resistance over 100 full photoswitching cycles and great anti-aging property under 85 °C and 85 % humidity for at least 1000 h. Consequently, its rewritable QR-code, multilevel data storage, and anti-counterfeiting/encryption applications are successfully demonstrated exclusively using visible lights, positioning TPAP-DTE as a highly promising medium for information recording.
Collapse
Affiliation(s)
- Pan Hong
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Jing Liu
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Kai-Xuan Qin
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Rui Tian
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Ling-Yan Peng
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Yun-Shu Su
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Zongsong Gan
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Xiang-Xiang Yu
- School of Integrated Circuits, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Lei Ye
- School of Integrated Circuits, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Ming-Qiang Zhu
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| | - Chong Li
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China
| |
Collapse
|