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Hayashi E, Akiyama N, Kakiuchi K, Kawai T, Morimoto T. Cationic Rhodium(I)-Catalyzed Asymmetric Cyclohydroformylation of 1,6-Enynes with Formaldehyde. Chem Asian J 2023; 18:e202201241. [PMID: 36647201 DOI: 10.1002/asia.202201241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/18/2023]
Abstract
We report a rhodium(I)-catalyzed asymmetric cyclohydroformylation reaction of 1,6-enynes with formaldehyde. The reaction of 1,6-enynes with formaldehyde in the presence of a cationic Rh(I) catalyst, such as [Rh(cod)2 ]+ OTf- , and a chiral biaryl diphosphine led to asymmetric cyclohydroformylation to produce aldehydes with higher-order structures highly enantioselectively. This transformation procedure is applicable to a variety of enynes, with wide compatibility in various atoms liking between the alkyne and alkene parts, substituents at the alkyne terminus, and substituents at the alkene part, being converted to newly formed aldehydes in 14% to 90% yields with 50% to 98% ee. The products were further transformed with various nucleophiles to alcohols, an amine, and a diene without loss of chirality at their γ-position.
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Affiliation(s)
- Erin Hayashi
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Ikoma, Nara, 630-0192, Japan
| | - Naoto Akiyama
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Ikoma, Nara, 630-0192, Japan
| | - Kiyomi Kakiuchi
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Ikoma, Nara, 630-0192, Japan
| | - Tsuyoshi Kawai
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Ikoma, Nara, 630-0192, Japan
| | - Tsumoru Morimoto
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Ikoma, Nara, 630-0192, Japan
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2
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Kakiuchi K. Wait for Destiny and Do Your Best. J SYN ORG CHEM JPN 2023. [DOI: 10.5059/yukigoseikyokaishi.81.59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Jia J, Morimoto T, Yamaguchi Y, Tanimoto H, Kakiuchi K. Correction to "Photodissociation of the Product from a Transition-Metal Center Allows the Catalytic Cycle to Proceed: The Rhodium(I)-Catalyzed [2+2+1] Carbonylative Cycloaddition of Diynes". Org Lett 2022; 24:797. [PMID: 34978194 DOI: 10.1021/acs.orglett.1c03854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Li X, Guo Y, Xu T, Wang J, Dai M, Kakiuchi K, Morimoto T, Ma J. To Photodeprotection or Not: Effect of the Oxidation State of Sulfur Atom of Thiochromone Derivatives. Chem Commun (Camb) 2022; 58:11725-11728. [DOI: 10.1039/d2cc04650d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Time-resolved spectroscopic experiments, assisted with DFT calculations, were employed to study the photochemical reaction mechanism of (4-oxo-3-phenyl-4H-thiochromen-2-yl) methoxycarbonyl-caged ethanol (TC) and (1,1-dioxido-4-oxo-3-phenyl-4H-thiochromen-2-yl) methoxy carbonyl-caged ethanol (TS-PPG) in different solvents. TC...
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Tanimoto H, Tojo K, Morimoto T, Kakiuchi K. Concise Synthesis of the Terpene Core Structure of Suaveolindole through a Time-Economic Route. Synlett 2021. [DOI: 10.1055/a-1707-6593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractThe terpene core structure of suaveolindoles was synthesized through a concise route in a time-economical manner. A scalable synthetic route from pulegone delivered the desired α,β,γ,δ-unsaturated ester in a brief period. By way of Eschenmoser–Claisen rearrangement, carbon side-chain moiety at the crowded double-allylic position was introduced stereoselectively.
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Affiliation(s)
- Hiroki Tanimoto
- Division of Materials Science Nara, Institute of Science and Technology (NAIST)
- Faculty of Pharmaceutical Sciences, University of Toyama
| | - Kazuki Tojo
- Division of Materials Science Nara, Institute of Science and Technology (NAIST)
| | - Tsumoru Morimoto
- Division of Materials Science Nara, Institute of Science and Technology (NAIST)
| | - Kiyomi Kakiuchi
- Division of Materials Science Nara, Institute of Science and Technology (NAIST)
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Morimoto T, Wang C, Tanimoto H, Artok L, Kakiuchi K. Rhodium(I)-Catalyzed CO-Gas-Free Arylative Dual-Carbonylation of Alkynes with Arylboronic Acids via the Formyl C–H Activation of Formaldehyde. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1468-8377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractThe rhodium(I)-catalyzed reaction of alkynes with arylboronic acids in the presence of formaldehyde results in a CO-gas-free arylative dual-carbonylation to produce γ-butenolide derivatives. The simultaneous loading of phosphine-ligated and phosphine-free rhodium(I) complexes is required for efficient catalysis. The former complex catalyzes the abstraction of a carbonyl moiety from formaldehyde through the activation of its formyl C–H bond (decarbonylation) and the latter catalyzes the subsequent dual-incorporation of the resulting carbonyl unit (carbonylation). The use of larger amounts of the phosphine-ligated rhodium(I) complex generates more carbonyl units, leading to the formation γ-butenolides via the dual-incorporation of the carbonyl unit.
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Affiliation(s)
- Tsumoru Morimoto
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST)
| | - Chuang Wang
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST)
| | - Hiroki Tanimoto
- Academic Assembly, Faculty of Pharmaceutical Sciences, University of Toyama
| | - Levent Artok
- Department of Chemistry, Faculty of Science, Izmir Institute of Technology
| | - Kiyomi Kakiuchi
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST)
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Ardiansah B, Tanimoto H, Tomohiro T, Morimoto T, Kakiuchi K. Sulfonium ion-promoted traceless Schmidt reaction of alkyl azides. Chem Commun (Camb) 2021; 57:8738-8741. [PMID: 34374377 DOI: 10.1039/d1cc02770k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Schmidt reaction by sulfonium ions is described. General primary, secondary, and tertiary alkyl azides were converted to the corresponding carbonyl or imine compounds without any trace of the activators. This bond scission reaction through 1,2-migration of C-H and C-C bonds was accessible to the one-pot substitution reaction.
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Affiliation(s)
- Bayu Ardiansah
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
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Jia J, Morimoto T, Yamaguchi Y, Tanimoto H, Kakiuchi K. Photodissociation of the Product from a Transition-Metal Center Allows the Catalytic Cycle to Proceed: The Rhodium(I)-Catalyzed [2+2+1] Carbonylative Cycloaddition of Diynes. Org Lett 2021; 23:4893-4897. [PMID: 34105976 DOI: 10.1021/acs.orglett.1c01631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe the effective rhodium(I)-catalyzed [2+2+1] carbonylative cycloaddition of diynes, yielding cyclopentadienes (CPDs), under photoirradiation. The catalysis involves the promotion of the photodissociation of the product CPD, with the simultaneous production of an essential vacant coordination site on the rhodium for an unreacted substrate. The combined use of cationic [Rh(cod)2]BF4 as a catalyst and photoirradiation was also found to give various CPDs in high yields (≤96%).
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Affiliation(s)
- JingWen Jia
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), Ikoma, Nara 630-0192, Japan
| | - Tsumoru Morimoto
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), Ikoma, Nara 630-0192, Japan
| | - Yoshiko Yamaguchi
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), Ikoma, Nara 630-0192, Japan
| | - Hiroki Tanimoto
- Academic Assembly, Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Kiyomi Kakiuchi
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), Ikoma, Nara 630-0192, Japan
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Kakiuchi K, Tanimoto H, Toumori D, Morimoto T. Synthesis of a Pentacoordinate Germanium Compound Possessing a γ-Lactone and a Dative-Bonding Carboxylic Acid. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Maegawa K, Tanimoto H, Onishi S, Tomohiro T, Morimoto T, Kakiuchi K. Taming the reactivity of alkyl azides by intramolecular hydrogen bonding: site-selective conjugation of unhindered diazides. Org Chem Front 2021. [DOI: 10.1039/d1qo01088c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The intramolecular hydrogen bonding in the α-azido secondary acetamides (α-AzSAs) enabled site-selective integration onto the diazide modular hubs even without steric hindrance.
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Affiliation(s)
- Koshiro Maegawa
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Hiroki Tanimoto
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Seiji Onishi
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Takenori Tomohiro
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Tsumoru Morimoto
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Kiyomi Kakiuchi
- Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
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Affiliation(s)
- Tsumoru Morimoto
- Division of Materials Science Nara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - JingWen Jia
- Division of Materials Science Nara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Yoshiko Yamaguchi
- Division of Materials Science Nara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Hiroki Tanimoto
- Division of Materials Science Nara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Kiyomi Kakiuchi
- Division of Materials Science Nara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
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12
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Morimoto T, Yamashita M, Tomiie A, Tanimoto H, Kakiuchi K. CO Gas‐free Intramolecular Cyclocarbonylation Reactions of Haloarenes Having a C‐Nucleophile through CO‐Relay between Rhodium and Palladium. Chem Asian J 2020; 15:473-477. [DOI: 10.1002/asia.201901595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/12/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Tsumoru Morimoto
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Mana Yamashita
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Ai Tomiie
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Hiroki Tanimoto
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Kiyomi Kakiuchi
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
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13
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Morimoto T, Yamashita M, Tomiie A, Tanimoto H, Kakiuchi K. Front Cover: CO Gas‐free Intramolecular Cyclocarbonylation Reactions of Haloarenes Having a C‐Nucleophile through CO‐Relay between Rhodium and Palladium (Chem. Asian J. 4/2020). Chem Asian J 2020. [DOI: 10.1002/asia.201901786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tsumoru Morimoto
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Mana Yamashita
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Ai Tomiie
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Hiroki Tanimoto
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
| | - Kiyomi Kakiuchi
- Division of Materials ScienceNara Institute of Science and Technology (NAIST) Ikoma Nara 630-0192 Japan
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Nakano M, Morimoto T, Noguchi J, Tanimoto H, Mori H, Tokumoto SI, Koishi H, Nishiyama Y, Kakiuchi K. Accelerated Organic Photoreactions in Flow Microreactors under Gas-Liquid Slug Flow Conditions Using N2 Gas as an Unreactive Substance. BCSJ 2019. [DOI: 10.1246/bcsj.20190117] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Momoe Nakano
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Tsumoru Morimoto
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Jiro Noguchi
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Hiroki Tanimoto
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Hajime Mori
- Department of Chemical Industry, Industrial Technology Center of Wakayama Prefecture (WINTEC), 60 Ogura, Wakayama 649-6261, Japan
| | - Shin-ichi Tokumoto
- Department of Chemical Industry, Industrial Technology Center of Wakayama Prefecture (WINTEC), 60 Ogura, Wakayama 649-6261, Japan
| | - Hideyuki Koishi
- Department of Chemical Industry, Industrial Technology Center of Wakayama Prefecture (WINTEC), 60 Ogura, Wakayama 649-6261, Japan
| | - Yasuhiro Nishiyama
- Department of Chemical Industry, Industrial Technology Center of Wakayama Prefecture (WINTEC), 60 Ogura, Wakayama 649-6261, Japan
| | - Kiyomi Kakiuchi
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
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Yokoi T, Ueda T, Tanimoto H, Morimoto T, Kakiuchi K. Site-selective conversion of azido groups at carbonyl α-positions into oxime groups leading triazide to a triple click conjugation scaffold. Chem Commun (Camb) 2019; 55:1891-1894. [DOI: 10.1039/c8cc09415b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This paper reports the selective conversion of alkyl azido groups at the carbonyl α-position into oximes, and one-pot triple click conjugation is demonstrated.
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Affiliation(s)
- Taiki Yokoi
- Division of Materials Science
- Graduate School of Science and Technology
- Nara Institute of Science and Technology (NAIST)
- 8916-5 Takayamacho
- Ikoma
| | - Tomomi Ueda
- Division of Materials Science
- Graduate School of Science and Technology
- Nara Institute of Science and Technology (NAIST)
- 8916-5 Takayamacho
- Ikoma
| | - Hiroki Tanimoto
- Division of Materials Science
- Graduate School of Science and Technology
- Nara Institute of Science and Technology (NAIST)
- 8916-5 Takayamacho
- Ikoma
| | - Tsumoru Morimoto
- Division of Materials Science
- Graduate School of Science and Technology
- Nara Institute of Science and Technology (NAIST)
- 8916-5 Takayamacho
- Ikoma
| | - Kiyomi Kakiuchi
- Division of Materials Science
- Graduate School of Science and Technology
- Nara Institute of Science and Technology (NAIST)
- 8916-5 Takayamacho
- Ikoma
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Morimoto T, Pan J, Kobayashi H, Tanimoto H, Kakiuchi K. The Use of Formaldehyde in the Rhodium-Catalyzed Linear-Selective Hydroformylation of Vinylheteroarenes. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Nomoto A, Sakamoto N, Sakai Y, Fukumoto K, Ogura SI, Shouhei K, Kakiuchi K, Kikuchi JI, Yano S, Ogawa A. Synthesis and crystal structures of phenylalanine ester-introduced palladium(II) and platinum(II) complexes and their cytotoxicities. Res Chem Intermed 2018. [DOI: 10.1007/s11164-018-3623-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Yokoi T, Tanimoto H, Ueda T, Morimoto T, Kakiuchi K. Site-Selective Conversion of Azido Groups at Carbonyl α-Positions to Diazo Groups in Diazido and Triazido Compounds. J Org Chem 2018; 83:12103-12121. [DOI: 10.1021/acs.joc.8b02074] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Taiki Yokoi
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Hiroki Tanimoto
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Tomomi Ueda
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Tsumoru Morimoto
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Kiyomi Kakiuchi
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
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Fadlan A, Tanimoto H, Ito T, Aritomi Y, Ueno M, Tokuda M, Hirohara S, Obata M, Morimoto T, Kakiuchi K. Synthesis, photophysical properties, and photodynamic activity of positional isomers of TFPP-glucose conjugates. Bioorg Med Chem 2018; 26:1848-1858. [DOI: 10.1016/j.bmc.2018.02.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/13/2018] [Accepted: 02/18/2018] [Indexed: 01/22/2023]
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20
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Yamazaki S, Naito T, Tatsumi T, Kakiuchi K. Synthesis of Piperidines via Intramolecular Hydride Transfer from α-Amino sp 3
Carbon Atoms to Ethenetricarboxylate-Derived Fragments and Further Cyclization. ChemistrySelect 2018. [DOI: 10.1002/slct.201800447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shoko Yamazaki
- Department of Chemistry; Nara University of Education, Takabatake-cho; Nara 630-8528 Japan
| | - Taku Naito
- Department of Chemistry; Nara University of Education, Takabatake-cho; Nara 630-8528 Japan
| | - Taiki Tatsumi
- Department of Chemistry; Nara University of Education, Takabatake-cho; Nara 630-8528 Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST), Takayama; Ikoma Nara 630-0192 Japan
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Arsianti A, Astuti H, Fadilah F, Martin Simadibrata D, Marie Adyasa Z, Amartya D, Bahtiar A, Tanimoto H, Kakiuchi K. Synthesis and in Vitro Antimalarial Activity of Alkyl Esters Gallate as a Growth Inhibitors of Plasmodium Falciparum. ACTA ACUST UNITED AC 2018. [DOI: 10.13005/ojc/340207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Tanimoto H, Ueda S, Morimoto T, Kakiuchi K. Nitrosoallene-Mediated endo-Cyclizations for the Synthesis of (Hetero)cyclic α-Substituted exo-Unsaturated Oximes. J Org Chem 2018; 83:1614-1626. [DOI: 10.1021/acs.joc.7b02936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroki Tanimoto
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Sho Ueda
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Tsumoru Morimoto
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
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Zhang H, Zhang Y, Wang M, Li J, Di Q, Tian Z, Chen B, Tanimoto H, Morimoto T, Kakiuchi K. Acid Promoted Metal Free Synthesis of Triazole-Fused Heterocycles via Intramolecular [3+2] Cycloaddition. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Kawatani R, Nishiyama Y, Kamikubo H, Kakiuchi K, Ajiro H. Aggregation Control by Multi-stimuli-Responsive Poly(N-vinylamide) Derivatives in Aqueous System. Nanoscale Res Lett 2017; 12:461. [PMID: 28738665 PMCID: PMC5520822 DOI: 10.1186/s11671-017-2221-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 07/03/2017] [Indexed: 06/07/2023]
Abstract
Thermal and photo responsive copolymer based on N-vinylamide backbone was designed. Methoxyethyl group and azobenzene were selected to improve hydrophilicity and photoresponsive moieties, respectively. The N-(methoxyethyl)-N-vinylformamide was synthesized and copolymerized with N-vinylformamide by free radical polymerization. In order to control the nanosized structures, poly(N-vinylformamide) derivatives bearing azobenzene at the N-position near to the vinyl polymer main chain were synthesized by polymer reaction with the poly(N-vinylformamide-co-N-(methoxyethyl)-N-vinylformamide) and azobenzene. Aggregation size of the multi-stimuli-responsive polymer was controlled by preparation of the hydrophobic interaction at around N-position.
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Affiliation(s)
- Ryo Kawatani
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, Nara 630-0192 Japan
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, Nara 630-0192 Japan
| | - Hironari Kamikubo
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, Nara 630-0192 Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, Nara 630-0192 Japan
| | - Hiroharu Ajiro
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, Nara 630-0192 Japan
- Institute for Research Initiatives, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma, Nara 630-0192 Japan
- JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 Japan
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Arsianti A, Fadilah F, Kusmardi K, Sugiarta GY, Tanimoto H, Kakiuchi K. In Silico Study and Cytotoxicity of the Synthesized Open-chain Analogues of Antimycin A3 Against HEP-2 Laryngeal Cancer Cells. CCTR 2017. [PMCID: PMC5755020 DOI: 10.2174/1573394713666170712113049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background: Methods: Results and Conclusion:
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Affiliation(s)
- Ade Arsianti
- Department of Medical Chemistry, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Fadilah Fadilah
- Department of Medical Chemistry, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Kusmardi Kusmardi
- Department of Anatomical pathology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Gede Y. Sugiarta
- Medical student of Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Hiroki Tanimoto
- Synthetic Organic Chemistry Laboratory, Graduate School of Materials Science, Nara Institute of Science and Technology, Nara, Japan
| | - Kiyomi Kakiuchi
- Synthetic Organic Chemistry Laboratory, Graduate School of Materials Science, Nara Institute of Science and Technology, Nara, Japan
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26
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Kakiuchi K, Motoki M, Sano E, Ota S, Unoda K, Hosokawa T, Ishida S, Nakajima H, Kimura F, Arawaka S. Evaluation of muscle MRI pattern in neuromuscular disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Tanimoto H, Mori J, Ito S, Nishiyama Y, Morimoto T, Tanaka K, Chujo Y, Kakiuchi K. Arene-Inserted Extended Germa[n]pericyclynes: Synthesis, Structure, and Phosphorescence Properties. Chemistry 2017; 23:10080-10086. [PMID: 28422338 DOI: 10.1002/chem.201701359] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Indexed: 11/09/2022]
Abstract
This report describes the synthesis and characterization of arene-inserted extended (ArEx) germa[n]pericyclynes composed of germanium and 1,4-diethynylbenzene units. These novel cyclic germanium-π unit materials were synthesized with diethynylbenzene and germanium dichloride. X-ray crystallographic analysis revealed their structures, and the planar conformation of ArEx germa[4]pericyclyne along with the regular aromatic rings. UV/Vis absorption spectra and fluorescence emission spectra showed considerably unique and highly improved character compared to previously reported germa[n]pericyclynes. Even in the absence of transition metal components, phosphorescence emissions were observed, and the emission lifetimes were dramatically improved. ArEx germa[n]pericyclynes showed high photoluminescence quantum yields, whereas low photoluminescence quantum yields were observed for acyclic compounds. Density functional theory calculations show delocalized orbitals between skipped alkyne units through a germanium tether, and an increase in the HOMO energy level, leading to a small HOMO-LUMO energy gap.
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Affiliation(s)
- Hiroki Tanimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara, 630-0192, Japan
| | - Junta Mori
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara, 630-0192, Japan
| | - Shunichiro Ito
- Department of Polymer Chemistry, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara, 630-0192, Japan
| | - Tsumoru Morimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara, 630-0192, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara, 630-0192, Japan
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Tanimoto H, Mori J, Ito S, Nishiyama Y, Morimoto T, Tanaka K, Chujo Y, Kakiuchi K. Inside Back Cover: Arene-Inserted Extended Germa[ n
]pericyclynes: Synthesis, Structure, and Phosphorescence Properties (Chem. Eur. J. 42/2017). Chemistry 2017. [DOI: 10.1002/chem.201702134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hiroki Tanimoto
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayamacho, Ikoma Nara 630-0192 Japan
| | - Junta Mori
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayamacho, Ikoma Nara 630-0192 Japan
| | - Shunichiro Ito
- Department of Polymer Chemistry; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayamacho, Ikoma Nara 630-0192 Japan
| | - Tsumoru Morimoto
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayamacho, Ikoma Nara 630-0192 Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayamacho, Ikoma Nara 630-0192 Japan
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Furusawa T, Tanimoto H, Nishiyama Y, Morimoto T, Kakiuchi K. Rhodium-catalyzed Carbonylative Annulation of 2-Bromobenzylic Alcohols with Internal Alkynes Using Furfural via β-Aryl Elimination. CHEM LETT 2017. [DOI: 10.1246/cl.170249] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Takuma Furusawa
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara 630-0192
| | - Hiroki Tanimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara 630-0192
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara 630-0192
| | - Tsumoru Morimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara 630-0192
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara 630-0192
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Yamazaki S, Naito T, Niina M, Kakiuchi K. Lewis Acid Catalyzed Cyclization Reactions of Ethenetricarboxylates via Intramolecular Hydride Transfer. J Org Chem 2017; 82:6748-6763. [DOI: 10.1021/acs.joc.7b00895] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shoko Yamazaki
- Department
of Chemistry, Nara University of Education, Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
| | - Taku Naito
- Department
of Chemistry, Nara University of Education, Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
| | - Mamiko Niina
- Department
of Chemistry, Nara University of Education, Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
| | - Kiyomi Kakiuchi
- Graduate
School of Materials Science, Nara Institute of Science and Technology (NAIST), Takayama,
Ikoma, Nara 630-0192, Japan
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31
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Hikage S, Nishiyama Y, Sasaki Y, Tanimoto H, Morimoto T, Kakiuchi K. Quantitative Photodeprotection Assessment of Caged Resveratrol by Fluorescence Measurement. ACS Omega 2017; 2:2300-2307. [PMID: 30023661 PMCID: PMC6044813 DOI: 10.1021/acsomega.7b00250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/11/2017] [Indexed: 06/08/2023]
Abstract
For monitoring the regenerated bioactivity of a masked bioactive compound, resveratrol (a luciferase inhibitor) was selected to target such a compound. Caged resveratrol, masked by thiochromone-type photolabile-protecting groups was synthesized in the study. Each caged resveratrol showed lower bioactivity when compared to that shown by the original molecule. After photoirradiation, the original bioactivity was found to be regenerated. Furthermore, the fluorescent compound derived from the thiochromone-type photolabile-protecting groups was generated simultaneously. A linear correlation was observed between the regenerated bioactivity and generated fluorescence intensity. Thus, we quantitatively monitored the recovered bioactivity successfully by measuring the fluorescence.
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Okamoto H, Takahashi H, Takane T, Nishiyama Y, Kakiuchi K, Gohda S, Yamaji M. Convenient Phenacene Synthesis by Sequentially Performed Wittig Reaction and Mallory Photocyclization Using Continuous-Flow Techniques. SYNTHESIS-STUTTGART 2017. [DOI: 10.1055/s-0036-1588775] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Various phenacenes possessing chrysene, picene, and fulminene frameworks were prepared by using a continuous-flow synthetic protocol in which Wittig reaction affording diarylethenes and their Mallory photocyclization producing phenacene skeletons were sequentially performed. The Wittig reaction solution, containing the diarylethene obtained from an arylaldehyde and an arylmethyltriphenylphosphonium salt, was mixed with an iodine solution in the flow system and, subsequently, the solution was subjected to the photoreaction. Desired phenacenes were obtained with high to moderate chemical yield. For the present protocol, isolation of the intermediary diarylethene, which is the key precursor of the phenacene, is unnecessary. The approach provides a convenient method to supply a variety of phenacene samples, which are needed for initial systematic surveys in material science.
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Affiliation(s)
- Hideki Okamoto
- Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
| | - Haruhiko Takahashi
- Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
| | - Takamitsu Takane
- Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Shin Gohda
- Material Science Research Group, NARD Institute, Ltd
| | - Minoru Yamaji
- Division of Molecular Science, Graduate School of Science and Engineering, Gunma University
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33
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Tanimoto H, Fujiwara T, Mori J, Nagao T, Nishiyama Y, Morimoto T, Ito S, Tanaka K, Chujo Y, Kakiuchi K. Extended germa[N]pericyclynes: synthesis and characterization. Dalton Trans 2017; 46:2281-2288. [PMID: 28133678 DOI: 10.1039/c6dt04633a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein describe the syntheses and characterization of extended germa[N]pericyclynes, which are macrocycles composed of germanium-butadiyne units. The obtained novel extended germa[4]-[8]pericyclynes were characterized by X-ray crystallography, UV-Vis spectroscopy, fluorescence and phosphorescence emission spectroscopy, and cyclic voltammetry, and exhibited characteristic absorptions and emissions. Density functional theory (DFT) calculations suggested smaller HOMO-LUMO gap energy compared to that of general germapericyclynes.
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Affiliation(s)
- Hiroki Tanimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan.
| | - Taro Fujiwara
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan.
| | - Junta Mori
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan.
| | - Tomohiko Nagao
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan.
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan.
| | - Tsumoru Morimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan.
| | - Shunichiro Ito
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan.
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34
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Furusawa T, Tanimoto H, Nishiyama Y, Morimoto T, Kakiuchi K. Rhodium(I)-Catalyzed Carbonylative Annulation of Iodobenzenes with Strained Olefins and 4-Octyne in the Presence of Furfural Involvingortho-C-H Bond Cleavage. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601056] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Takuma Furusawa
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayama-cho, Ikoma Nara 630-0192 Japan
| | - Hiroki Tanimoto
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayama-cho, Ikoma Nara 630-0192 Japan
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayama-cho, Ikoma Nara 630-0192 Japan
| | - Tsumoru Morimoto
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayama-cho, Ikoma Nara 630-0192 Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5 Takayama-cho, Ikoma Nara 630-0192 Japan
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35
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Zhang H, Zhang Y, Li J, Wang M, Tanimoto H, Morimoto T, Kakiuchi K. Synthesis of Fused 1,2,3-Triazoles through Carbocation-Mediated Intramolecular [3+2] Cycloaddition of Azido-propargyl Alcohols. HETEROCYCLES 2017. [DOI: 10.3987/com-17-13763] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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Tanimoto H, Kakiuchi K. Synthesis and Characterization of Cyclic Organogermanium Element-Block Materials Germa[N]pericyclynes Composed of Ethynylene-Germylenes. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hiroki Tanimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
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Mizuno K, Nishiyama Y, Ogaki T, Terao K, Ikeda H, Kakiuchi K. Utilization of microflow reactors to carry out synthetically useful organic photochemical reactions. Journal of Photochemistry and Photobiology C: Photochemistry Reviews 2016. [DOI: 10.1016/j.jphotochemrev.2016.10.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hikage S, Sasaki Y, Hisai T, Tanimoto H, Morimoto T, Nishiyama Y, Kakiuchi K. Synthesis of novel caged antisense oligonucleotides with fluorescence property. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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39
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Zhang Y, Zhang H, Ma C, Li J, Nishiyama Y, Tanimoto H, Morimoto T, Kakiuchi K. Synthesis and Photochemistry of a New Photolabile Protecting Group for Propargylic Alcohols. Synlett 2016. [DOI: 10.1055/s-0036-1588915] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Youlai Zhang
- School of Chemistry and Chemical Engineering, Tianjin University of Technology
| | - Huan Zhang
- School of Chemistry and Chemical Engineering, Tianjin University of Technology
| | - Chi Ma
- School of Chemistry and Chemical Engineering, Tianjin University of Technology
| | - Junru Li
- School of Chemistry and Chemical Engineering, Tianjin University of Technology
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Hiroki Tanimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Tsumoru Morimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
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Furusawa T, Morimoto T, Nishiyama Y, Tanimoto H, Kakiuchi K. Rh(I) -Catalyzed Intramolecular Carbonylative C-H/C-I Coupling of 2-Iodobiphenyls Using Furfural as a Carbonyl Source. Chem Asian J 2016; 11:2312-5. [PMID: 27378516 DOI: 10.1002/asia.201600802] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Indexed: 12/13/2022]
Abstract
Synthesis of fluoren-9-ones by a Rh-catalyzed intramolecular C-H/C-I carbonylative coupling of 2-iodobiphenyls using furfural as a carbonyl source is presented. The findings indicate that the rate-determining step is not a C-H bond cleavage but, rather, the oxidative addition of the C-I bond to a Rh(I) center.
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Affiliation(s)
- Takuma Furusawa
- Graduate School of materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan
| | - Tsumoru Morimoto
- Graduate School of materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan.
| | - Yasuhiro Nishiyama
- Graduate School of materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan
| | - Hiroki Tanimoto
- Graduate School of materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan
| | - Kiyomi Kakiuchi
- Graduate School of materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan
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Nakano M, Nishiyama Y, Tanimoto H, Morimoto T, Kakiuchi K. Remarkable Improvement of Organic Photoreaction Efficiency in the Flow Microreactor by the Slug Flow Condition Using Water. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00181] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Momoe Nakano
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Yasuhiro Nishiyama
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Hiroki Tanimoto
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Tsumoru Morimoto
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
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42
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Tanimoto H, Nagao T, Hosokawa S, Fujiwara T, Nishiyama Y, Morimoto T, Tsutsumi K, Kakuta T, Tanaka K, Chujo Y, Kakiuchi K. Synthesis and Characterization of Ethynylated Germa[4]pericyclyne. CHEM LETT 2016. [DOI: 10.1246/cl.160332] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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43
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Tanimoto H, Shitaoka T, Yokoyama K, Morimoto T, Nishiyama Y, Kakiuchi K. Formal [3+2] Cycloaddition of Nitrosoallenes with Carbonyl and Nitrile Compounds to Form Functional Cyclic Nitrones. J Org Chem 2016; 81:8722-8735. [DOI: 10.1021/acs.joc.6b00758] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Hiroki Tanimoto
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Takashi Shitaoka
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Keiichi Yokoyama
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Tsumoru Morimoto
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Yasuhiro Nishiyama
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
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44
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Affiliation(s)
| | - Mamiko Niina
- Department of Chemistry, Nara University of Education
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
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45
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Furusawa T, Morimoto T, Oka N, Tanimoto H, Nishiyama Y, Kakiuchi K. Pd(0)-catalyzed CO Gas-free Carbonylation of 2-Bromobiphenyls with Formaldehyde as a Carbonyl Surrogate through the Cleavage of a C–H Bond. CHEM LETT 2016. [DOI: 10.1246/cl.151182] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Takuma Furusawa
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Tsumoru Morimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Nagato Oka
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Hiroki Tanimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Yasuhiro Nishiyama
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
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46
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Tanimoto H, Yokoi T, Sugiura T, Morimoto T, Nishiyama Y, Kakiuchi K. Approach to Phenanthroindolizidine Alkaloids Using Organic Azides with 1-Aryl Allylic Alcohols: Unexpected Tandem Reactions to Indenyl Aziridines via Nazarov Cyclization. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Tanimoto H, Yokoyama K, Mizutani Y, Shitaoka T, Morimoto T, Nishiyama Y, Kakiuchi K. Synthesis of α-Substituted Enoximes with Nucleophiles via Nitrosoallenes. J Org Chem 2015; 81:559-74. [DOI: 10.1021/acs.joc.5b02364] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hiroki Tanimoto
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Keiichi Yokoyama
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Yusuke Mizutani
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Takashi Shitaoka
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Tsumoru Morimoto
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Yasuhiro Nishiyama
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials
Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan
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48
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Hirohara S, Oka C, Totani M, Obata M, Yuasa J, Ito H, Tamura M, Matsui H, Kakiuchi K, Kawai T, Kawaichi M, Tanihara M. Synthesis, Photophysical Properties, and Biological Evaluation of trans-Bisthioglycosylated Tetrakis(fluorophenyl)chlorin for Photodynamic Therapy. J Med Chem 2015; 58:8658-70. [DOI: 10.1021/acs.jmedchem.5b01262] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shiho Hirohara
- Department
of Chemical and Biological Engineering, Ube National Collage of Technology, 2-14-1 Tokiwadai, Ube 755-8555, Japan
| | - Chio Oka
- Graduate
School of Biological Sciences, Nara Institute of Science and Technology, Takayama 8916-5, Ikoma, Nara 630-0192, Japan
| | - Masayasu Totani
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Takayama 8916-5, Ikoma, Nara 630-0192, Japan
| | - Makoto Obata
- Interdisciplinary
Graduate School of Medicine and Engineering, University of Yamanashi, Kofu 400-8510, Japan
| | - Junpei Yuasa
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Takayama 8916-5, Ikoma, Nara 630-0192, Japan
| | - Hiromu Ito
- Faculty
of Medicine, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8573, Japan
| | - Masato Tamura
- Faculty
of Medicine, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8573, Japan
| | - Hirofumi Matsui
- Faculty
of Medicine, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8573, Japan
| | - Kiyomi Kakiuchi
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Takayama 8916-5, Ikoma, Nara 630-0192, Japan
| | - Tsuyoshi Kawai
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Takayama 8916-5, Ikoma, Nara 630-0192, Japan
| | - Masashi Kawaichi
- Graduate
School of Biological Sciences, Nara Institute of Science and Technology, Takayama 8916-5, Ikoma, Nara 630-0192, Japan
| | - Masao Tanihara
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Takayama 8916-5, Ikoma, Nara 630-0192, Japan
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49
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Abstract
The stereospecificity of the cyclization reaction of (E)- and (Z)-2-alkenyl esters and amides of ethenetricarboxylate has been examined. The reaction of (E)/(Z)-2-butenyl esters with AlCl3 or FeCl3 gave trans-substituted chlorinated γ-lactone diastereomers stereospecifically. (E)/(Z)-2-butenyl and pentenyl amides undergo an intramolecular ene reaction at room temperature gradually. At 80 °C, the (Z)-alkenyl amides were transformed to cis-substituted ene adducts and the (E)-amides were transformed to cis- and trans-substituted ene adduct mixtures. The reaction of (E)/(Z)-2-alkenyl amides with ZnI2 gave trans-substituted γ-lactam diastereomers stereospecifically along with the ene adducts.
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Affiliation(s)
- Shoko Yamazaki
- Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
| | - Junya Wada
- Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan
| | - Kiyomi Kakiuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Takayama, Ikoma, Nara 630-0192, Japan
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50
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Tanimoto H, Nagao T, Fujiwara T, Nishiyama Y, Morimoto T, Suzuka T, Tsutsumi K, Kakiuchi K. Stepwise synthesis and characterization of germa[4], [5], [8], and [10]pericyclynes. Dalton Trans 2015; 44:11811-8. [PMID: 26051845 DOI: 10.1039/c5dt01411e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stepwise syntheses of germa[N]pericyclynes, including [5]pericyclynes, and their characterization are described. The yields of germa[4] and [8]pericyclynes were improved significantly compared to those obtained in previous studies. The routes reported herein afforded the novel germa[5] and [10]pericyclynes, which were characterized by X-ray crystallography, UV-Vis spectroscopy, and fluorescence emission spectroscopy. A unique fluorescence emission was observed for the large germa[10]pericyclyne ring.
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Affiliation(s)
- Hiroki Tanimoto
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayamacho, Ikoma, Nara 630-0192, Japan.
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