Search Results - "NAGASHIMA, Yuki"

Silaboration of [1.1.1]Propellane: A Storable Feedstock for Bicyclo[1.1.1]pentane Derivatives by Kondo, Masaki, Kanazawa, Junichiro, Ichikawa, Tomohiro, Shimokawa, Takumi, Nagashima, Yuki, Miyamoto, Kazunori, Uchiyama, Masanobu

“…The silaboration of [1.1.1]propellane enables direct introduction of B and Si functional groups onto the bicyclo[1.1.1]pentane (BCP) scaffold in high yield…”
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Trans-Diborylation of Alkynes: Pseudo-Intramolecular Strategy Utilizing a Propargylic Alcohol Unit by Nagashima, Yuki, Hirano, Keiichi, Takita, Ryo, Uchiyama, Masanobu

“…We present the first trans-selective diborylation reaction of alkynes. By means of theoretical calculation-assisted reaction analysis, we designed a…”
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Design, Generation, and Synthetic Application of Borylzincate: Borylation of Aryl Halides and Borylzincation of Benzynes/Terminal Alkyne by Nagashima, Yuki, Takita, Ryo, Yoshida, Kengo, Hirano, Keiichi, Uchiyama, Masanobu

“…Borylzincate was generated in situ from dialkylzinc, diboron, and metal alkoxide. Model DFT calculations showed that although the formation of boryl­zinc­ate…”
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Photocatalytic Generations of Secondary and Tertiary Silyl Radicals from Silylboranes Using an Alkoxide Cocatalyst by Arai, Ryo, Nagashima, Yuki, Koshikawa, Takumi, Tanaka, Ken

“…Silyl radicals are valuable species to prepare diverse organosilicon compounds. However, unlike stable tertiary silyl radicals, the use of secondary silyl…”
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Computational Mechanistic Study on Intramolecular Triple Cyclization of 1-Biphenylethynyl-2-phenylethynylbenzenes Giving Spiro Fluorene-Phenylenevinylenes by Dual Catalysis by Nagashima, Yuki, Ouchi, Seiya, Inoue, Tomonori, Tanaka, Ken

“…Cationic Au(I) complex-catalyzed double cyclizations of 1,2-dialkynylbenzene derivatives are valuable for the straightforward synthesis of ladder-type…”
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In Situ Generation of Silylzinc by Si−B Bond Activation Enabling Silylzincation and Silaboration of Terminal Alkynes by Nagashima, Yuki, Yukimori, Daiki, Wang, Chao, Uchiyama, Masanobu

“…A new protocol has been designed for the in situ generation of unstable Si−Zn species through the reaction of dialkylzinc, phosphine, and silylborane (Si−B)…”
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Gold-Catalyzed [3 + 2] Annulation, Carbenoid Transfer, and C–H Insertion Cascade: Elucidation of Annulation Mechanisms via Benzopyrylium Intermediates by Koshikawa, Takumi, Nagashima, Yuki, Tanaka, Ken

“…It has been established that a cationic gold­(I)/PCy3 complex catalyzes the intramolecular cascade reaction of enediyne-carbonyls via benzopyrylium…”
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Platinum-Catalyzed Intramolecular Spirocyclization of N‑(Methylnaphthalenyl)propiolamides via Formal Aromatic Ene Reaction by Ouchi, Seiya, Koshikawa, Takumi, Nagashima, Yuki, Tanaka, Ken

“…It has been established that an in situ-generated cationic platinum­(II)/rac-BINAP complex catalyzes the intramolecular dearomative 5-endo spirocyclization of…”
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Induction of Highly Ordered Smectic Phases in Side Chain Liquid Crystalline Polymers by Means of Random Copolymerization by Imanishi, Ryota, Nagashima, Yuki, Takishima, Keisuke, Hara, Mitsuo, Nagano, Shusaku, Seki, Takahiro

“…The glass transition and melting temperatures of binary random copolymers are mostly observed as nearly the average of each homopolymer with moderate…”
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Room Temperature Fluoranthene Synthesis through Cationic Rh(I)/H8‑BINAP-Catalyzed [2 + 2 + 2] Cycloaddition: Unexpected Acceleration due to Noncovalent Interactions by Abe, Ryota, Nagashima, Yuki, Tanaka, Jin, Tanaka, Ken

“…The fluoranthene skeleton is a structure often found in natural products and fluorescent materials, and thus developing an operationally simple method for…”
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Design, synthesis and visible-light-induced non-radical reactions of dual-functional Rh catalysts by Ouchi, Seiya, Inoue, Tomonori, Nogami, Juntaro, Nagashima, Yuki, Tanaka, Ken

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Asymmetric synthesis, structures, and chiroptical properties of helical cycloparaphenylenes by Nogami, Juntaro, Nagashima, Yuki, Miyamoto, Kazunori, Muranaka, Atsuya, Uchiyama, Masanobu, Tanaka, Ken

“…Planar chiral carbon nanorings and nanobelts (CNRs and CNBs), the sidewall segment molecules of chiral-type carbon nanotubes (CNTs), have attracted attention…”
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Dearomative triple elementalization of quinolines driven by visible light by Ishigaki, Shiho, Nagashima, Yuki, Yukimori, Daiki, Tanaka, Jin, Matsumoto, Takashi, Miyamoto, Kazunori, Uchiyama, Masanobu, Tanaka, Ken

“…Organoboron and organosilicon compounds are used not only as synthetic building blocks but also as functional materials and pharmaceuticals, and compounds with…”
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Acceleration Mechanisms of C–H Bond Functionalization Catalyzed by Electron-Deficient CpRh(III) Complexes by Nagashima, Yuki, Ishigaki, Shiho, Tanaka, Jin, Tanaka, Ken

“…A rhodium­(III) complex bearing a 1,3-bis­(ethoxycarbonyl)-substituted or an unsubstituted cyclopentadienyl ligand (CpE or Cp) significantly accelerates a…”
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Enantioselective Synthesis of Axially Chiral Styrene‐Carboxylic Esters by Rhodium‐Catalyzed Chelation‐Controlled [2+2+2] Cycloaddition by Yokose, Daisuke, Nagashima, Yuki, Kinoshita, Suzuka, Nogami, Juntaro, Tanaka, Ken

“…Axially chiral styrene‐carboxylic esters were synthesized in high yields with excellent enantioselectivity by the cationic rhodium(I)/H8‐BINAP…”
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Synthesis of Cyclophenacene‐ and Chiral‐Type Cyclophenylene‐Naphthylene Belts by Nogami, Juntaro, Nagashima, Yuki, Sugiyama, Haruki, Miyamoto, Kazunori, Tanaka, Yusuke, Uekusa, Hidehiro, Muranaka, Atsuya, Uchiyama, Masanobu, Tanaka, Ken

“…We report the synthesis of a [20]cyclophenacene‐type cyclophenylene‐naphthylene (CPN) belt and the enantioselective synthesis of chiral‐type CPN belts (up to…”
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Catalyst-Controlled Inter- and Intramolecular Cascade [4 + 2] Annulations via Benzopyrylium Intermediates by Koshikawa, Takumi, Nogami, Juntaro, Nagashima, Yuki, Tanaka, Ken

“…We report two types of catalyst-controlled inter- and intramolecular cascade [4 + 2] annulations between diyne-carbonyls and alkenes, Pt­(II)-catalyzed…”
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Liquid-Crystalline Polymer and Block Copolymer Domain Alignment Controlled by Free-Surface Segregation by Fukuhara, Kei, Fujii, Yasuyoshi, Nagashima, Yuki, Hara, Mitsuo, Nagano, Shusaku, Seki, Takahiro

“…An orientational change from homeotropic to planar of liquid crystal (LC) mesogens and the microphase separation (MPS) domains is attained by the segregated…”
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Rapid Determination of Sub-ppm Heavy Metals in the Solution State via Portable X-ray Fluorescence Spectrometry Based on Homogeneous Liquid–Liquid Extraction in a Ternary Component System by KATO, Takeshi, NAGASHIMA, Yuki, MANAKA, Atsushi, NAKAMURA, Chihiro, OSHITE, Shigekatu, IGARASHI, Shukuro

“…The rapid determination of sub-ppm heavy metals in the solution state was examined via portable X-ray fluorescence spectrometry (XRF) based on homogeneous…”
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T-Cell Receptor Repertoire as a Predictor of Immune-Related Adverse Events in Renal Cell Carcinoma by Kobayashi, Takuro, Nagata, Masayoshi, Ikehata, Yoshihiro, Nagashima, Yuki, Nagaya, Naoya, Lu, Yan, Horie, Shigeo

“…Immune checkpoint inhibitors (ICIs) are effective in treating renal cell carcinoma (RCC) but can also cause immune-related adverse events (irAEs). The…”
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