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Petcu AS, Lázaro-Milla C, Alonso JM, Almendros P. Unveiling the Use of 1,1-Bis(triflyl)ethylene as CF 3SO 2CH═CH 2 Source with the Assistance of ( n-Bu) 4NF: Synthesis of 3-[(Trifluoromethyl)sulfonyl]cyclobut-1-enes. Org Lett 2024; 26:4560-4565. [PMID: 38767989 PMCID: PMC11148847 DOI: 10.1021/acs.orglett.4c01514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 05/22/2024]
Abstract
Allylic sulfone-embedded cyclobutenes have been prepared in one pot from alkynes. The carbocycle and the alkenyl sulfone moieties were installed through consecutive bis(triflyl)cyclobutenylation of a triple bond and tetra-n-butylammonium fluoride (TBAF)-assisted hydrodesulfonylation of an allylic bis(sulfone). It is noteworthy that 1,1-bis(triflyl)ethylene acts as a CF3SO2CH═CH2 source for the first time.
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Affiliation(s)
- A. Sonia Petcu
- Instituto
de Química Orgánica General, IQOG, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
- Grupo
de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Carlos Lázaro-Milla
- Grupo
de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - José M. Alonso
- Grupo
de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Pedro Almendros
- Instituto
de Química Orgánica General, IQOG, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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2
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Yanai H. Development of Stable Carbanionic Substituents. CHEM REC 2023; 23:e202300076. [PMID: 37058109 DOI: 10.1002/tcr.202300076] [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: 02/28/2023] [Revised: 03/29/2023] [Indexed: 04/15/2023]
Abstract
During the past decade, carbon (C-H) acids depicted as 'Tf2 CHR' (Tf=CF3 SO2 ) have attracted considerable attention as a new class of superacidic molecules, which show stronger acidity than sulfuric acid molecules. In recent years, the author has developed a synthetic methodology for such strong acids and has opened the door to chemistry of highly stabilised carbanions [Tf2 CR]- , which are the conjugate bases of the carbon acids. These carbanion-containing salts are stable and easy-to-handle species. Our efforts have revealed that the ionic but lipophilic characters of this type of carbanion can be used as a unique 'substituent' for increasing both the water solubility and the lipophilicity of organic compounds. This Personal Account provides an overview of our [Tf2 CR]- chemistry, including its synthesis, structure, reactivity, and applications.
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Affiliation(s)
- Hikaru Yanai
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
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3
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Hoshikawa S, Yanai H, Matsumoto T. Synthesis of Spirocyclic Cyclobutenes through Desulfinative Spirocyclisation of
gem
‐Bis(triflyl)cyclobutenes. Chemistry 2022; 28:e202200704. [DOI: 10.1002/chem.202200704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Shoki Hoshikawa
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
| | - Hikaru Yanai
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
| | - Takashi Matsumoto
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
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4
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Yanai H. Chemistry of Carbanions Stabilised by (Trifluoromethyl) sulfonyl Group: Synthesis, Structure and Applications. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hikaru Yanai
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
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5
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Hoshikawa S, Yanai H, Martín-Mejías I, Lázaro-Milla C, Aragoncillo C, Almendros P, Matsumoto T. Synthesis of Polycyclic Aromatic Hydrocarbons Decorated by Fluorinated Carbon Acids/Carbanions. Chemistry 2021; 27:16112-16116. [PMID: 34542205 DOI: 10.1002/chem.202103188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Indexed: 11/07/2022]
Abstract
The carboarylation reaction of biphenyl-alkynes was successfully triggered by electrophilic attack of 1,1-bis(triflyl)ethylene on the alkyne moiety to give polycyclic aromatic hydrocarbons (PAHs) decorated by superacidic carbon acid functionality. Neutralisation of thus obtained acids with NaHCO3 yielded the corresponding sodium salts, which showed improved solubility in both aqueous and organic solvents.
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Affiliation(s)
- Shoki Hoshikawa
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Hikaru Yanai
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Irene Martín-Mejías
- Instituto de Química Orgánica General, IQOG, Consejo Superior de Investigaciones Científicas, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | - Carlos Lázaro-Milla
- Grupo de Lactamas y Heterociclos Bioactivos, Unidad Asociada al CSIC, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Cristina Aragoncillo
- Grupo de Lactamas y Heterociclos Bioactivos, Unidad Asociada al CSIC, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General, IQOG, Consejo Superior de Investigaciones Científicas, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | - Takashi Matsumoto
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
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6
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Martín I, Aragoncillo C, Almendros P. Palladium‐Catalyzed Hydroarylation of Homopropargyl Iodoindoles with Concurrent Alkyl and Iodonium Migrations. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Irene Martín
- Instituto de Química Orgánica General, IQOG, CSIC Juan de la Cierva 3 28006 Madrid Spain
| | - Cristina Aragoncillo
- Grupo de Lactamas y Heterociclos Bioactivos Departamento de Química Orgánica Unidad Asociada al CSIC Facultad de Química Universidad Complutense de Madrid 28040 Madrid Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General, IQOG, CSIC Juan de la Cierva 3 28006 Madrid Spain
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7
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Yanai H, Hoshikawa S, Moriiwa Y, Shoji A, Yanagida A, Matsumoto T. A Fluorinated Carbanionic Substituent for Improving Water Solubility and Lipophilicity of Fluorescent Dyes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hikaru Yanai
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
| | - Shoki Hoshikawa
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
| | - Yukiko Moriiwa
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
| | - Atsushi Shoji
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
| | - Akio Yanagida
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
| | - Takashi Matsumoto
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji Tokyo 192-0392 Japan
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8
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Yanai H, Hoshikawa S, Moriiwa Y, Shoji A, Yanagida A, Matsumoto T. A Fluorinated Carbanionic Substituent for Improving Water Solubility and Lipophilicity of Fluorescent Dyes. Angew Chem Int Ed Engl 2021; 60:5168-5172. [PMID: 33245605 DOI: 10.1002/anie.202012764] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/02/2020] [Indexed: 12/21/2022]
Abstract
Installation of a carbanionic substituent, that is strongly stabilized by two (trifluoromethyl)sulfonyl (Tf=SO2 CF3 ) groups, into several fluorescence dyes including boron-dipyrromethenes (BODIPYs), fluoresceins, and aminocoumarins has been achieved by the 2,2-bis(triflyl)ethylation reaction of the dye frameworks with highly electrophilic Tf2 C=CH2 , followed by neutralization with NaHCO3 . Despite the contradiction between water solubility and lipophilicity, the carbanion-decorated dyes thus obtained showed significant enhancement of not only water solubility but also lipophilicity. This work clearly demonstrates that the fluorinated, highly stabilized carbanionic substituent is a new option for controlling the macroscopic property of chemical materials.
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Affiliation(s)
- Hikaru Yanai
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Shoki Hoshikawa
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Yukiko Moriiwa
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Atsushi Shoji
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Akio Yanagida
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Takashi Matsumoto
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
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9
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Banerjee A, Kundu S, Bhattacharyya A, Sahu S, Maji MS. Benzannulation strategies for the synthesis of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines. Org Chem Front 2021. [DOI: 10.1039/d1qo00092f] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review presents a critical and authoritative analysis of several exciting benzannulation approaches developed in the past decade for the construction of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines.
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Affiliation(s)
- Ankush Banerjee
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Samrat Kundu
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Arya Bhattacharyya
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Samrat Sahu
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Modhu Sudan Maji
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
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10
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Yang X, Zheng B, Wang Y, Li Y, Liu Q, Pan L. Cs
+
/Alcohol Promoted[4C+2C]Annulation: ASynthetic Strategy for Polysubstituted Phenols. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xiaohui Yang
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
| | - Baihui Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
| | - Yanqing Wang
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
| | - Yifei Li
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
| | - Qun Liu
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
| | - Ling Pan
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
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