1
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Design and synthesis of novel cyclopeptide p53-MDM2 inhibitors with isoindolinone as antitumor agent. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2
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Xiao S, Zhao L, Yan R, Zhang H, Liu J, Wang Z, Tan G, Jin Y. Efficient synthesis of bisulfide-bridged bicyclopeptides by intramolecular photoinduced electron transfer cycloreaction. NEW J CHEM 2022. [DOI: 10.1039/d2nj00583b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nine bisulfide-bridged bicyclopeptides were synthesized firstly by intramolecular photoinduced electron transfer cyclo-reaction using l-cystine as the linker.
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Affiliation(s)
- Shimei Xiao
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
| | - Lishuang Zhao
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
| | - Rui Yan
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
| | - Huanli Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
| | - Jiawen Liu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
| | - Zhiqiang Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
| | - Guanghui Tan
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
| | - Yingxue Jin
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
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3
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Zhao L, Deng Y, Ji Y, Guan F, Bao Y, Li X, Wei L. Photo-induced synthesis and antitumor activity of marine zygosporamide analogs containing the isoindolinone fragment. NEW J CHEM 2022. [DOI: 10.1039/d2nj04004b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Two novel marine zygosporamide analogs with the isoindolinone fragment were synthesized, and the binding of the compounds with the EGFR protein of liver cancer cells was studied with the aim of explaining the bioactivity difference.
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Affiliation(s)
- Lishuang Zhao
- College of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin, 150025, China
| | - Yuanhao Deng
- College of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin, 150025, China
| | - Yuxin Ji
- College of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin, 150025, China
| | - Fujing Guan
- Harbin Center for Disease Control and Prevention, Harbin 150036, China
| | - Yujun Bao
- College of Life Science and Technology, Harbin Normal University, Harbin, 150025, China
| | - Xuewei Li
- College of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin, 150025, China
| | - Liguo Wei
- College of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin, 150025, China
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4
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Nakamura T, Ban K, Yoshida Y, Mino T, Kasashima Y, Sakamoto M. Asymmetric Synthesis of Indoline from Achiral Phthalimide Involving Crystallization-Induced Deracemization. Chemistry 2021; 27:16338-16341. [PMID: 34585795 DOI: 10.1002/chem.202103345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Indexed: 11/06/2022]
Abstract
Asymmetric synthesis was performed by combining the photochemical reaction of an achiral substrate followed by crystallization-induced deracemization. The results indicated that a fused indoline produced by photochemical intramolecular δ-hydrogen abstraction and cyclization of N-(5-chloro-2-methylphenyl)phthalimide crystallized as a racemic conglomerate. Since this substrate has an aminal skeleton, racemization involving a ring-opening and ring-closing equilibrium process occurred under suitable conditions. Efficient racemization was observed in acetone containing a catalytic base, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). Crystallization-induced dynamic deracemization by Viedma ripening from racemic indoline was performed with an excellent enantioselectivity of 99 % ee. Furthermore, one-pot asymmetric synthesis of the indoline was achieved by the photochemical reaction of achiral phthalimide followed by continuous attrition-enhanced deracemization converging to 99 % ee of enantiomeric crystals. This is the first example of asymmetric expression and amplification by photochemical hydrogen abstraction and crystallization-induced dynamic deracemization.
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Affiliation(s)
- Takumi Nakamura
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Kazuma Ban
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Yasushi Yoshida
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Takashi Mino
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Yoshio Kasashima
- Education Center, Faculty of Creative Engineering, Chiba Institute of Technology, Shibazono, Narashino, Chiba, 275-0023, Japan
| | - Masami Sakamoto
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
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5
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The effect of the rate of photoinduced electron transfer on the photodecarboxylation efficiency in phthalimide photochemistry. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Lim SH, Ahn M, Wee KR, Shim JH, Choi J, Ahn DS, Cho DW. Control of Chemoselectivity of SET-Promoted Photoaddition Reactions of Fullerene C 60 with α-Trimethylsilyl Group-Containing N-Alkylglycinates Yielding Aminomethyl-1,2-dihydrofullerenes or Fulleropyrrolidines. J Org Chem 2020; 85:12882-12900. [PMID: 32969218 DOI: 10.1021/acs.joc.0c01324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Knowledge about factors that govern chemoselectivity is pivotal to the design of reactions that are utilized to produce complex organic substances. In the current study, single-electron transfer (SET)-promoted photoaddition reactions of fullerene C60 with both trimethylsilyl and various alkyl group-containing glycinates and ethyl N-alkyl-N-((trimethylsilyl)methyl)glycinates were explored to evaluate how the nature of N-alkyl substituents of glycinate substrates and reaction conditions govern the chemoselectivity of reaction pathways followed. The results showed that photoreactions of C60 with glycinates, performed in deoxygenated conditions, produced aminomethyl-1,2-dihydrofullerenes efficiently through a pathway involving the addition of α-amino radical intermediates that are generated by sequential SET-solvent-assisted desilylation of glycinate substrates to C60. Under oxygenated conditions, photoreactions of glycinate substrates, except N-benzyl-substituted analogues, did not take place efficiently owing to quenching of 3C60* by oxygen. Interestingly, N-benzyl-substituted glycinates did react under these conditions to form fulleropyrrolidines through a pathway involving 1,3-dipolar cycloaddition of in situ formed azomethine ylides to C60. The ylide intermediates were formed by regioselective H-atom transfer from glycinates by singlet oxygen. Furthermore, methylene blue (MB)-photosensitized reactions of C60 with glycinates under oxygenated conditions took place efficiently to produce fulleropyrrolidines independent of the nature of N-alkyl substituents of glycinates.
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Affiliation(s)
- Suk Hyun Lim
- Department of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Korea
| | - Mina Ahn
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan, Gyeongbuk 38453, Korea
| | - Kyung-Ryang Wee
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan, Gyeongbuk 38453, Korea
| | - Jun Ho Shim
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan, Gyeongbuk 38453, Korea
| | - Jungkweon Choi
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Doo-Sik Ahn
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Dae Won Cho
- Department of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Korea
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7
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The conventional turns rather than irregular γ-/β-turn secondary structures accounting for the antitumor activities of cyclic peptide Phakellistatin 6 analogs. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130881] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Bao Y, Jiang S, Zhao L, Jin Y, Yan R, Wang Z. Photoinduced synthesis and antitumor activity of a phakellistatin 18 analog with an isoindolinone fragment. NEW J CHEM 2020. [DOI: 10.1039/d0nj03005h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Photoinduced synthesis and antitumor activity of a phakellistatin 18 analog with an isoindolinone fragment.
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Affiliation(s)
- Yujun Bao
- Key Laboratory of Photochemistry biomaterials and Energy storage materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Shitian Jiang
- Key Laboratory of Photochemistry biomaterials and Energy storage materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Lishuang Zhao
- Key Laboratory of Photochemistry biomaterials and Energy storage materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Yingxue Jin
- Key Laboratory of Photochemistry biomaterials and Energy storage materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Rui Yan
- Key Laboratory of Photochemistry biomaterials and Energy storage materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Zhiqiang Wang
- Key Laboratory of Photochemistry biomaterials and Energy storage materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
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9
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Bao Y, Zhao L, Wu J, Jiang S, Wang Z, Jin Y. Photo-induced synthesis of Axinastatin 3 analogs, the secondary structures and their in vitro antitumor activities. Bioorg Med Chem Lett 2019; 29:126730. [PMID: 31607609 DOI: 10.1016/j.bmcl.2019.126730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 09/30/2019] [Accepted: 10/01/2019] [Indexed: 10/25/2022]
Abstract
Cyclic peptides combine several favorable properties such as good binding affinity, target selectivity and low toxicity that make them an attractive modality for drug development. In an effort to identify what conformation could be accounting for the bioactive disparity of natural and synthetic cyclic peptides, some structurally-constrained analogs of cyclopeptide Axinastatin 3 were prepared by photo-induced single electron transfer (SET) reaction. Detailed stereochemistry study was performed by experimental electronic circular dichroism combined with theoretical calculations. Our study suggested that the cyclopeptide 1 with βI-turn presented stronger antitumor activity comparing with those without such secondary structures. Moreover, a rare 'π helix unit' (compound 3) was realized because of the constrained cyclic structure, which could be considered an important research object for future study of unique helix secondary structures.
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Affiliation(s)
- Yujun Bao
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Lishuang Zhao
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province, Harbin, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China
| | - Jingwan Wu
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Shitian Jiang
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Zhiqiang Wang
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China.
| | - Yingxue Jin
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China.
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10
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Sterkhova IV, Lazarev IM, Lazareva NF. Synthesis, structural and spectroscopic features of 2,2,2-trichloro-N-[(trimethylsilyl)methyl]acetamide and 2,2,2-trimethyl-N-[(trimethylsilyl)methyl]acetamide. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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11
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Zhao L, Wu J, Bao Y, Jiang S, Wang Z, Guo C, Jin Y, Qu F. Synthesis of novel isoindole-containing phakellistatin 2 analogs and the conformation features affecting their antitumor activities. NEW J CHEM 2019. [DOI: 10.1039/c9nj01832h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two novel phakellistatin 2 analogs were synthesized and the conformational features affecting their antitumor activities were studied.
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Affiliation(s)
- Lishuang Zhao
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province
- College of Life Science and Technology
- Harbin Normal University
- Harbin
- China
| | - Jingwan Wu
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Yujun Bao
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Shitian Jiang
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Zhiqiang Wang
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Changhong Guo
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province
- College of Life Science and Technology
- Harbin Normal University
- Harbin
- China
| | - Yingxue Jin
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Fengyu Qu
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province
- College of Life Science and Technology
- Harbin Normal University
- Harbin
- China
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12
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Sohora M, Vazdar M, Sović I, Mlinarić-Majerski K, Basarić N. Photocyclization of Tetra- and Pentapeptides Containing Adamantylphthalimide and Phenylalanines: Reaction Efficiency and Diastereoselectivity. J Org Chem 2018; 83:14905-14922. [PMID: 30460849 DOI: 10.1021/acs.joc.8b01785] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A series of tetrapeptides and pentapeptides was synthesized bearing a phthalimide chromophore at the N-terminus. The C-terminus of the peptides was strategically substituted with an amino acid, Phe, Phe(OMe), or Phe(OMe)2 characterized by different oxidation potentials. The photochemical reactivity of the peptides was investigated by preparative irradiation and isolation of photoproducts, as well as with laser flash photolysis. Upon photoexcitation, the peptides undergo photoinduced electron transfer (PET) and decarboxylation, followed by diastereoselective cyclization with the retention of configuration for tetrapeptides or inversion of configuration for pentapeptides. Molecular dynamics (MD) simulations and NOE experiments enabled assignment of the stereochemistry of the cyclic peptides. MD simulations of the linear peptides disclosed conformational reasons for the observed diastereoselectivity, being due to the peptide backbone spatial orientation imposed by the Phe amino acids. The photochemical efficiency for the decarboxylation and cyclization is not dependent on the peptide length, but it depends on the oxidation potential of the amino acid at the C-terminus. The results described herein are particularly important for the rational design of efficient photochemical reactions for the preparation of cyclic peptides with the desired selectivity.
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Affiliation(s)
- Margareta Sohora
- Department of Organic Chemistry and Biochemistry , Rud̵er Bošković Institute , Bijenička cesta 54 , 10000 Zagreb , Croatia
| | - Mario Vazdar
- Department of Organic Chemistry and Biochemistry , Rud̵er Bošković Institute , Bijenička cesta 54 , 10000 Zagreb , Croatia
| | - Irena Sović
- Department of Organic Chemistry and Biochemistry , Rud̵er Bošković Institute , Bijenička cesta 54 , 10000 Zagreb , Croatia
| | - Kata Mlinarić-Majerski
- Department of Organic Chemistry and Biochemistry , Rud̵er Bošković Institute , Bijenička cesta 54 , 10000 Zagreb , Croatia
| | - Nikola Basarić
- Department of Organic Chemistry and Biochemistry , Rud̵er Bošković Institute , Bijenička cesta 54 , 10000 Zagreb , Croatia
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13
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Yang J, Xu C, Xiong Y, Wang X, Xie Y, Li Z, Tang H. A Green and Highly Efficient Naphthalimide Visible Photoinitiator with an Ability Initiating Free Radical Polymerization under Air. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800256] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jianjing Yang
- Engineering Research Center of Organosilicon Compounds and Materials; Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University; Wuhan 430072 P. R. China
| | - Can Xu
- Engineering Research Center of Organosilicon Compounds and Materials; Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University; Wuhan 430072 P. R. China
| | - Ying Xiong
- Engineering Research Center of Organosilicon Compounds and Materials; Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University; Wuhan 430072 P. R. China
| | - Xiaoling Wang
- Engineering Research Center of Organosilicon Compounds and Materials; Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University; Wuhan 430072 P. R. China
| | - Yujun Xie
- Engineering Research Center of Organosilicon Compounds and Materials; Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University; Wuhan 430072 P. R. China
| | - Zhen Li
- Engineering Research Center of Organosilicon Compounds and Materials; Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University; Wuhan 430072 P. R. China
| | - Hongding Tang
- Engineering Research Center of Organosilicon Compounds and Materials; Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University; Wuhan 430072 P. R. China
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14
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Greer EM, Kwon K. Density Functional Theory and
ab Initio
Computational Evidence for Nitrosamine Photoperoxides: Hammett Substituent Effects in the Photogeneration of the Nitrooxide Intermediate. Photochem Photobiol 2018; 94:975-984. [DOI: 10.1111/php.12941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 05/15/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Edyta M. Greer
- Department of Natural Sciences Baruch College City University of New York New York NY
| | - Kitae Kwon
- Department of Natural Sciences Baruch College City University of New York New York NY
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15
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16
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Wu J, Zhao L, Wang Z, Jin Y. Photo-induced synthesis of chiral galaxamide analogs and the biological activities against human tumor cells. NEW J CHEM 2018. [DOI: 10.1039/c8nj04978e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Two chiral analogs of galaxamide were synthesized by a photoinduced cyclization reaction.
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Affiliation(s)
- Jingwan Wu
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Lishuang Zhao
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Zhiqiang Wang
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Yingxue Jin
- Key Laboratory of Photochemistry Biomaterials and Energy Storage Materials of Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
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17
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Synthesis and photochemical reactivity of phthalimidoadamantane–tyrosine conjugates. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2927-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Hsieh SY, Bode JW. Lewis Acid Induced Toggle from Ir(II) to Ir(IV) Pathways in Photocatalytic Reactions: Synthesis of Thiomorpholines and Thiazepanes from Aldehydes and SLAP Reagents. ACS CENTRAL SCIENCE 2017; 3:66-72. [PMID: 28149955 PMCID: PMC5269652 DOI: 10.1021/acscentsci.6b00334] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Indexed: 06/06/2023]
Abstract
Redox neutral photocatalytic transformations often require careful pairing of the substrates and photoredox catalysts in order to achieve a catalytic cycle. This can limit the range of viable transformations, as we recently observed in attempting to extend the scope of the photocatalytic synthesis of N-heterocycles using silicon amine protocol (SLAP) reagents to include starting materials that require higher oxidation potentials. We now report that the inclusion of Lewis acids in photocatalytic reactions of organosilanes allows access to a distinct reaction pathway featuring an Ir(III)*/Ir(IV) couple instead of the previously employed Ir(III)*/Ir(II) pathway, enabling the transformation of aromatic and aliphatic aldehydes to thiomorpholines and thiazepanes. The role of the Lewis acid in accepting an electron-either directly or via coordination to an imine-can be extended to other classes of photocatalysts and transformations, including oxidative cyclizations. The combination of light induced reactions and Lewis acids therefore promises access to new pathways and transformations that are not viable using the photocatalysts alone.
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19
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Zhao L, Zhang H, Cui J, Zhao M, Wang Z, Yue Q, Jin Y. Photo-induced synthesis and in vitro antitumor activity of Fenestin A analogs. NEW J CHEM 2017. [DOI: 10.1039/c7nj03363j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two bioactive Fenestin A analogs were synthesized by photo-induced cyclization.
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Affiliation(s)
- Lishuang Zhao
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Hongyue Zhang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Jianing Cui
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Meiqi Zhao
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Zhiqiang Wang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Qunfeng Yue
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Yingxue Jin
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
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20
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Hsieh SY, Bode JW. Silicon Amine Reagents for the Photocatalytic Synthesis of Piperazines from Aldehydes and Ketones. Org Lett 2016; 18:2098-101. [DOI: 10.1021/acs.orglett.6b00722] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sheng-Ying Hsieh
- Laboratorium für Organische
Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Jeffrey W. Bode
- Laboratorium für Organische
Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
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21
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Lim SH, Jeong HC, Sohn Y, Kim YI, Cho DW, Woo HJ, Shin IS, Yoon UC, Mariano PS. Single Electron Transfer-Promoted Photochemical Reactions of Secondary N-Trimethylsilylmethyl-N-benzylamines Leading to Aminomethylation of Fullerene C60. J Org Chem 2016; 81:2460-73. [DOI: 10.1021/acs.joc.6b00004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Suk Hyun Lim
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Ho Cheol Jeong
- Department
of Energy Convergence Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Youngku Sohn
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Young-Il Kim
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Dae Won Cho
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Hee-Jae Woo
- Department
of Chemistry, Soongsil University, Seoul 156-743, Korea
| | - Ik-Soo Shin
- Department
of Chemistry, Soongsil University, Seoul 156-743, Korea
| | - Ung Chan Yoon
- Department
of Chemistry, Pusan National University, Busan 609-735, Korea
| | - Patrick S. Mariano
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
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22
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Lim SH, Yi J, Ra CS, Nahm K, Cho DW, Lee GY, Kim J, Yoon UC, Mariano PS. SET-promoted photoaddition reactions of N -α-trimethylsilylmethyl- N , N -dibenzylamines with fullerene C 60 . Electronic factors that govern photoaddition efficiencies. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.10.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Doni E, Murphy JA. Evolution of neutral organic super-electron-donors and their applications. Chem Commun (Camb) 2015; 50:6073-87. [PMID: 24690952 DOI: 10.1039/c3cc48969h] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In recent times, metal-free chemistry has received significant attention due to its inherent qualities and its potential savings in the costs of (i) reagents and (ii) environmental treatments of residues. In this context, recently developed neutral organic electron-donors have shown an ability to perform challenging reductions that are traditionally the preserve of reactive metals and metal-based complexes, under mild reaction conditions. Hence, this feature article is aimed at describing the evolution of neutral organic super-electron-donors and their rapidly developing applications in electron-transfer reactions.
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Affiliation(s)
- Eswararao Doni
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK.
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24
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25
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Lim SH, Yi J, Moon GM, Ra CS, Nahm K, Cho DW, Kim K, Hyung TG, Yoon UC, Lee GY, Kim S, Kim J, Mariano PS. Method for the Synthesis of Amine-Functionalized Fullerenes Involving SET-Promoted Photoaddition Reactions of α-Silylamines. J Org Chem 2014; 79:6946-58. [DOI: 10.1021/jo501034t] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Suk Hyun Lim
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Jinju Yi
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Gyeong Min Moon
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Choon Sup Ra
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Keepyung Nahm
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Dae Won Cho
- Department
of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Kyungmok Kim
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Tae Gyung Hyung
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Ung Chan Yoon
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Ga Ye Lee
- Department
of Chemistry and Nano Science, Global Top 5 Research Program, Ewha Womans University, Seoul 120-750, Korea
| | - Soojin Kim
- Department
of Chemistry and Nano Science, Global Top 5 Research Program, Ewha Womans University, Seoul 120-750, Korea
| | - Jinheung Kim
- Department
of Chemistry and Nano Science, Global Top 5 Research Program, Ewha Womans University, Seoul 120-750, Korea
| | - Patrick S. Mariano
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
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26
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Cho DW, Mariano PS, Yoon UC. Direct and indirect single electron transfer (SET)-photochemical approaches for the preparation of novel phthalimide and naphthalimide-based lariat-type crown ethers. Beilstein J Org Chem 2014; 10:514-27. [PMID: 24605169 PMCID: PMC3943935 DOI: 10.3762/bjoc.10.47] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 01/27/2014] [Indexed: 11/23/2022] Open
Abstract
In this review, we describe direct and indirect photochemical approaches that have been developed for the preparation of phthalimide- and naphthalimide-based, lariat-type crown ethers. The direct route utilizes a strategy in which nitrogen-linked side chains containing polyethoxy-tethered phthalimides and naphthalimides, possessing terminal α-trialkylsilyl groups, are synthesized utilizing concise routes and UV-irradiation to form macrocyclic ring systems. In contrast, the indirect route developed for the synthesis of lariat-type crown ethers employs sequences in which SET-promoted macrocyclization reactions of α-trialkylsilyl-terminated, polyethoxy-tethered phthalimides and naphthalimides are followed by a side chain introduction through substitution reactions at the amidol centers in the macrocyclic ethers. The combined observations made in these investigations demonstrate the unique features of SET-promoted photocyclization reactions that make them well-suited for the use in the synthesis of functionalized crown ethers. In addition, while some limitations exist for the general use of SET-photochemical reactions in large-scale organic synthesis, important characteristics of the photoinduced macrocyclization reactions make them applicable to unique situations in which high temporal and spatial control is required.
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Affiliation(s)
- Dae Won Cho
- Department of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Korea
| | - Patrick S Mariano
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Ung Chan Yoon
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
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27
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Park HJ, Sung NK, Kim SR, Ahn SH, Yoon UC, Cho DW, Mariano PS. Novel Naphthalene Based Lariat-Type Crown Ethers Using Direct Single Electron Transfer Photochemical Strategy. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.12.3681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Lin WC, Yang DY. Photochromism of o-Nitrophenyl-Substituted Oxazabicycles. J Org Chem 2013; 78:11798-806. [DOI: 10.1021/jo401838n] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wen-Chung Lin
- Department
of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 40704, Taiwan, Republic of China
| | - Ding-Yah Yang
- Department
of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 40704, Taiwan, Republic of China
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29
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Lim SH, Nahm K, Ra CS, Cho DW, Yoon UC, Latham JA, Dunaway-Mariano D, Mariano PS. Effects of alkoxy groups on arene rings of lignin β-O-4 model compounds on the efficiencies of single electron transfer-promoted photochemical and enzymatic C-C Bond Cleavage Reactions. J Org Chem 2013; 78:9431-43. [PMID: 23992466 DOI: 10.1021/jo401680z] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
To gain information about how alkoxy substitution in arene rings of β-O-4 structural units within lignin governs the efficiencies/rates of radical cation C1-C2 bond cleavage reactions, single electron transfer (SET) photochemical and lignin peroxidase-catalyzed oxidation reactions of dimeric/tetrameric model compounds have been explored. The results show that the radical cations derived from less alkoxy-substituted dimeric β-O-4 models undergo more rapid C1-C2 bond cleavage than those of more alkoxy-substituted analogues. These findings gained support from the results of DFT calculations, which demonstrate that C1-C2 bond dissociation energies of β-O-4 radical cations decrease as the degree of alkoxy substitution decreases. In SET reactions of tetrameric compounds consisting of two β-O-4 units, containing different degrees of alkoxy substitution, regioselective radical cation C-C bond cleavage was observed to occur in one case at the C1-C2 bond in the less alkoxy-substituted β-O-4 moiety. However, regioselective C1-C2 cleavage in the more alkoxy-substituted β-O-4 moiety was observed in another case, suggesting that other factors might participate in controlling this process. These observations show that lignins containing greater proportions of less rather than more alkoxylated rings as part of β-O-4 units would be more efficiently cleaved by SET mechanisms.
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Affiliation(s)
- Suk Hyun Lim
- Department of Chemistry, Yeungnam University , Gyeongsan, Gyeongbuk 712-749, Korea
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30
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Park HJ, Ryu YJ, Kim KM, Yoon UC, Kim E, Sohn Y, Cho DW, Mariano PS. Comparison of Photocyclization Reactions of Fluoro- vs Nonfluoro-Substituted Polymethyleneoxy Donor Linked Phthalimides. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.4.1108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Liu CE, Han Q, Ma N, Geng ZS, Zhang RH, Jiang ZQ. Unusual stereo- and chemo-selective photocyclization of chiral α-aminoacid-incorporated 2-acyl benzamides by control of chiral memory. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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32
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Park HJ, Yoon UC, Lee HY, Cho DW, Cho DW, Mariano PS. Photoaddition Reactions of Acetylpyridines with Silyl Ketene Acetals: SET vs [2 + 2]-Cycloaddition Pathways. J Org Chem 2012; 77:10304-13. [DOI: 10.1021/jo301961n] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hea Jung Park
- Department of Chemistry and
Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Ung Chan Yoon
- Department of Chemistry and
Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Hyang-Yeol Lee
- Department of Biotechnology, Korea National University of Transportation, 61 Daehak-ro,
Jeungpyung, Chungbuk 368-701, Korea
| | - Dae Won Cho
- Fraunhofer ISE Next Generation
Solar Cell Research Center, Konkuk University, Seoul 143-701, Korea
| | - Dae Won Cho
- Department of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 712-749,
Korea
| | - Patrick S. Mariano
- Department of Chemistry
and
Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
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33
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Cho DW, Cho DW, Park HJ, Yoon UC, Lee MH, Im C. Synergistic effect of trimethylsilane for photoinduced electron transfer on 1,8-naphthalimides in polar solvent. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Mbuvi HM, Klobukowski ER, Roberts GM, Woo LK. O-H insertion and tandem N-H insertion/cyclization reactions using an iron porphyrin as catalyst with diazo compounds as carbene sources. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424610001982] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Iron(III) tetraphenylporphyrin chloride, Fe(TPP)Cl , efficiently catalyzed the insertion of carbenes derived from methyl 2-phenyldiazoacetates into O-H bonds of aliphatic and aromatic alcohols, with yields generally above 80%. Although the analogous N-H insertions are rapid at room temperature, the O-H insertion reactions are slower and required heating in refluxing methylene chloride for about 8 hours using 1.0 mol.% catalyst. Fe(TPP)Cl was also found to be effective for tandem N-H insertion/cyclization reactions when 1,2-diamines and 1,2-alcoholamines were treated with diazo reagents to give piperazinones and morpholinones and related analogs such as quinoxalinones and benzoxazin-2-ones. This approach provides a new one-pot route for synthesizing these classes of heterocyclic compounds.
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Affiliation(s)
- Harun M. Mbuvi
- Department of Chemistry, Iowa State University, Ames, IA 50011-3111, USA
| | | | - Gina M. Roberts
- Department of Chemistry, Iowa State University, Ames, IA 50011-3111, USA
| | - L. Keith Woo
- Department of Chemistry, Iowa State University, Ames, IA 50011-3111, USA
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35
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Cho DW, Lee CW, Park JG, Oh SW, Sung NK, Park HJ, Kim KM, Mariano PS, Yoon UC. Exploration of photochemical reactions of N-trimethylsilylmethyl-substituted uracil, pyridone, and pyrrolidone derivatives. Photochem Photobiol Sci 2011; 10:1169-80. [PMID: 21472163 DOI: 10.1039/c0pp00372g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photochemical reactions of N-trimethylsilylmethyl-substituted uracil, pyridone and pyrrolidone derivatives were carried out to determine if silicone containing substituents have an impact on excited state reaction profiles. The results show that ultraviolet irradiation of N-trimethylsilylmethyl substituted uracils in the presence of substituted alkenes leads to efficient formation of both dimeric and cross [2+2]-cycloaddition products. Qualitatively similar observations were made in a study of the photochemistry of N-trimethylsilylmethyl-2-pyridone. The combined results demonstrate that [2+2]-photocycloaddition is a more efficient excited state reaction pathway for the uracil and pyridone substrates as compared to other processes, such as ylide-forming trimethylsilyl group C-to-O migration. Finally, photoreactions of N-trimethylsilylmethyl-2-pyrrolidone in solutions containing dipolarophiles, such as methyl acrylate, lead to the formation of the desilylation product, N-methyl-2-pyrrolidone by way of a simple, non-ylide generating, protodesilylation process. In addition, observations were made which show that orbital symmetry allowed photocycloreversion reactions of dimeric uracil derivatives, involving cyclobutane ring splitting, to take place. These processes, which lead to the formation of monomeric uracils, appear to be stimulated by the presence of electron donor groups on the cyclobutane ring, a likely result of a new SET promoted cyclobutane ring cleavage pathway. In the cases of N-trimethylsilylmethyl-substituted cyclobutane derivatives that possess phthalimide groups, highly efficient excited state cleavage of the cyclobutane moiety occurs to produce uracil derivatives and corresponding vinyl phthalimide.
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Affiliation(s)
- Dae Won Cho
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 609-735, Korea
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36
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Cho DW, Latham JA, Park HJ, Yoon UC, Langan P, Dunaway-Mariano D, Mariano PS. Regioselectivity of Enzymatic and Photochemical Single Electron Transfer Promoted Carbon−Carbon Bond Fragmentation Reactions of Tetrameric Lignin Model Compounds. J Org Chem 2011; 76:2840-52. [DOI: 10.1021/jo200253v] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dae Won Cho
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - John A. Latham
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Hea Jung Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Ung Chan Yoon
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Paul Langan
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Debra Dunaway-Mariano
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Patrick S. Mariano
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
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37
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Cho DW, Yoon UC, Mariano PS. Studies leading to the development of a single-electron transfer (SET) photochemical strategy for syntheses of macrocyclic polyethers, polythioethers, and polyamides. Acc Chem Res 2011; 44:204-15. [PMID: 21197953 DOI: 10.1021/ar100125j] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Organic photochemists began to recognize in the 1970s that a new mechanistic pathway involving excited-state single-electron transfer (SET) could be used to drive unique photochemical reactions. Arnold's seminal studies demonstrated that SET photochemical reactions proceed by way of ion radical intermediates, the properties of which govern the nature of the ensuing reaction pathways. Thus, in contrast to classical photochemical reactions, SET-promoted excited-state processes are controlled by the nature and rates of secondary reactions of intermediate ion radicals. In this Account, we discuss our work in harnessing SET pathways for photochemical synthesis, focusing on the successful production of macrocyclic polyethers, polythioethers, and polyamides. One major thrust of our studies in SET photochemistry has been to develop new, efficient reactions that can be used for the preparation of important natural and non-natural substances. Our efforts with α-silyl donor-tethered phthalimides and naphthalimides have led to the discovery of efficient photochemical processes in which excited-state SET is followed by regioselective formation of carbon-centered radicals. The radical formation takes place through nucleophile-assisted desilylation of intermediate α-silyl-substituted ether-, thioether-, amine-, and amide-centered cation radicals. Early laser flash photolysis studies demonstrated that the rates of methanol- and water-promoted bimolecular desilylations of cation radicals (derived from α-silyl electron donors) exceeded the rates of other cation radical α-fragmentation processes, such as α-deprotonation. In addition, mechanistic analyses of a variety of SET-promoted photocyclization reactions of α-silyl polydonor-linked phthalimides and naphthalimides showed that the chemical and quantum efficiencies of the processes are highly dependent on the lengths and types of the chains connecting the imide acceptor and α-silyl electron donor centers. We also observed that reaction efficiencies are controlled by the rates of desilylation at the α-silyl donor cation radical moieties in intermediate zwitterionic biradicals that are formed by either direct excited-state intramolecular SET or by SET between the donor sites in the intervening chains. It is important to note that knowledge about how these factors govern product yields, regiochemical selectivities, and quantum efficiencies was crucial for the design of synthetically useful photochemical reactions of linked polydonor-acceptor substrates. The fruits of these insights are exemplified by synthetic applications in the concise preparation of cyclic peptide mimics, crown ethers and their lariat- and bis-analogs, and substances that serve as fluorescence sensors for important heavy metal cations.
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Affiliation(s)
- Dae Won Cho
- Department of Chemistry, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Ung Chan Yoon
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Patrick S. Mariano
- Department of Chemistry, University of New Mexico, Albuquerque, New Mexico 87131, United States
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38
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Cho DW, Quan C, Park HJ, Yoon UC, Mariano PS. Photochemical Approach to the Preparation of Lariat Crown Ethers Containing Peptide Sidearms. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.2.503] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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39
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Horvat M, Mlinarić-Majerski K, Griesbeck AG, Basarić N. Photoinduced decarboxylation of 3-(N-phthalimido)adamantane-1-carboxylic acid and radical addition to electron deficient alkenes. Photochem Photobiol Sci 2011; 10:610-7. [DOI: 10.1039/c0pp00357c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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40
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Oelgemöller M, Kramer WH. Synthetic photochemistry of naphthalimides and related compounds. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2010. [DOI: 10.1016/j.jphotochemrev.2011.02.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Cho DW, Oh SW, Kim DU, Park HJ, Xue JY, Yoon UC, Mariano PS. Studies of Silyl-Transfer Photochemical Reactions of N-[(Trimethylsilyl)alkyl]saccharins. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.9.2453] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Studies aimed at elucidating factors involved in the control of chemoselectivity in single electron transfer promoted photoreactions of branched-polydonor substituted phthalimides. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.02.074] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Intermolecular Photocyclizations of N-(ω-Hydroxyalkyl)tetrachlorophthalimide with Alkenes Leading to Medium- and Large-Ring Heterocycles-Reaction Modes and Regio- and Stereoselectivity of the 1,n-Biradicals. Chemistry 2010; 16:2873-86. [DOI: 10.1002/chem.200902849] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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Horvat M, Görner H, Warzecha KD, Neudörfl J, Griesbeck AG, Mlinarić-Majerski K, Basarić N. Photoinitiated domino reactions: N-(adamantyl)phthalimides and N-(adamantylalkyl)phthalimides. J Org Chem 2009; 74:8219-31. [PMID: 19874065 DOI: 10.1021/jo901753z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Phthalimides 1-6 undergo photochemical reactions upon direct irradiation as well as triplet sensitization and give rise to new products. Besides formation of the primary photoproducts, the first photochemical step initiates a subsequent thermal domino reaction or a domino sequence of a thermal and a photochemical reaction. The latter, involving two photochemical intramolecular gamma-H abstractions, was observed with phthalimides 1, 3, and 6 and delivered stereospecifically the hexacyclic benzazepine products 12, 19, and 27, respectively. The lowest triplet states of 1-6 were characterized in several solvents upon direct and acetone-sensitized excitation. The intermolecular electron transfer from triethylamine and DABCO was studied, and the radical anions were observed. Electrochemical measurements showed that intramolecular electron transfer from the adamantyl group of 1-6 to the lowest triplet state of the phthalimides is not feasible. The formation of products can be explained by intramolecular H-abstraction from the (alkyl)adamantane to the excited phthalimide, either from the excited singlet state or a hidden upper excited triplet state.
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Affiliation(s)
- Margareta Horvat
- Department of Organic Chemistry and Biochemistry, Ruder Bosković Institute, Bijenicka cesta 54, 10 000 Zagreb, Croatia
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45
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Jeong HC, Park KH, Park HJ, Cho DW, Yoon UC. Azomethine Yilde Forming Photoreaction of N-(Tributylstannyl)methylphthalimide. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2009. [DOI: 10.5012/jkcs.2009.53.3.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Swamy KCK, Kumar NNB, Balaraman E, Kumar KVPP. Mitsunobu and Related Reactions: Advances and Applications. Chem Rev 2009; 109:2551-651. [PMID: 19382806 DOI: 10.1021/cr800278z] [Citation(s) in RCA: 873] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K. C. Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad − 500046, A. P., India
| | - N. N. Bhuvan Kumar
- School of Chemistry, University of Hyderabad, Hyderabad − 500046, A. P., India
| | - E. Balaraman
- School of Chemistry, University of Hyderabad, Hyderabad − 500046, A. P., India
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47
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Novel N-Hydroxymethylation of Phthalimide by Titanium Dioxide Photocatalyst in Methanol. B KOREAN CHEM SOC 2009. [DOI: 10.5012/bkcs.2009.30.2.295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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48
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Tsuchida H, Tamura M, Hasegawa E. Cyclization and Ring-Expansion Processes Involving Samarium Diiodide Promoted Reductive Formation and Subsequent Oxidative Ring Opening of Cyclopropanol Derivatives. J Org Chem 2009; 74:2467-75. [DOI: 10.1021/jo802749g] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroyuki Tsuchida
- Department of Chemistry, Faculty of Science, Niigata University, Ikarashi-2 8050, Niigata 950-2181, Japan
| | - Mutsuko Tamura
- Department of Chemistry, Faculty of Science, Niigata University, Ikarashi-2 8050, Niigata 950-2181, Japan
| | - Eietsu Hasegawa
- Department of Chemistry, Faculty of Science, Niigata University, Ikarashi-2 8050, Niigata 950-2181, Japan
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Maki Y, Mori H, Endo T. Synthesis of Well-Defined Alternating Copolymers by RAFT Copolymerization of N-Vinylnaphthalimide. Macromolecules 2008. [DOI: 10.1021/ma801359y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuya Maki
- Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa, 992-8510, Japan, and Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan
| | - Hideharu Mori
- Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa, 992-8510, Japan, and Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan
| | - Takeshi Endo
- Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa, 992-8510, Japan, and Molecular Engineering Institute, Kinki University, Iizuka, Fukuoka 820-8555, Japan
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Cho DW, Lee HY, Oh SW, Choi JH, Park HJ, Mariano PS, Yoon UC. Photoaddition reactions of 1,2-diketones with silyl ketene acetals. formation of beta-hydroxy-gamma-ketoesters. J Org Chem 2008; 73:4539-47. [PMID: 18494523 DOI: 10.1021/jo800473x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Photochemical reactions taking place between 1,2-diketones and silyl ketene acetals and their excited state reaction mechanisms have been explored. Irradiation of benzene, acetone, or acetonitrile solutions containing 1,2-diketones and silyl ketene acetals is observed to promote formation of 1,4-dioxenes, resulting from [4 + 2]-cycloaddition, oxetanes, arising by Paterno-Buchi processes, and beta-hydroxy-gamma-ketoesters, generated by SET-promoted Claisen-type condensation. These competitive pathways leading from the excited states of the 1,2-diketones to these products are influenced by solvent polarity and the nature of the silyl ketene acetal and 1,2-diketone. The Claisen-type condensation process, following an SET desilylation pathway and predominating when the photoreactions are carried out in the polar solvent acetonitrile, represents an efficient method to prepare a variety of diversely substituted beta-hydoxy-gamma-ketoesters.
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Affiliation(s)
- Dae Won Cho
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, Korea
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