Search Results - "Fukuzawa, Shin‐ichi"

Dipolarophile‐Steered Formal Stereodivergent Synthesis of 2,5‐cis/trans‐Pyrrolidines Based on Asymmetric 1,3‐Dipolar Cycloaddition of Imino Lactones by Furuya, Shohei, Muroi, Kenji, Kanemoto, Kazuya, Fukuzawa, Shin‐ichi

“…The stereodivergent asymmetric synthesis of 2,5‐trans/cis pyrrolidines by 1,3‐dipolar cycloaddition using two different types of activated alkenes is…”
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N‐(Morpholine‐4‐dithio)phthalimide: A Shelf‐Stable, Bilateral Platform Molecule Enabling Access to Diverse Unsymmetrical Disulfides by Asanuma, Hayato, Kanemoto, Kazuya, Watanabe, Tokiharu, Fukuzawa, Shin‐ichi

“…Synthetic methods for unsymmetrical disulfides are greatly needed owing to their applications in drug discovery, linker chemistry, and materials sciences. In…”
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exo′‐Selective Construction of Spirobipyrrolidines by the Silver‐catalyzed Asymmetric [3+2] Cycloaddition of Imino Esters with 4‐Benzylidene‐2,3‐dioxopyrrolidines by Furuya, Shohei, Kanemoto, Kazuya, Fukuzawa, Shin‐ichi

“…An unprecedented Ag‐catalyzed exo′‐selective [3+2] cycloaddition of imino esters with 4‐benzylidene‐2,3‐dioxopyrrolidines is described. The reaction was…”
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Synthesis and Evaluation of Novel Planar‐Chiral Monophosphine Ligands Bearing Ferrocene‐Triazole Backbones by Sakai, Suguru, Kanemoto, Kazuya, Fukuzawa, Shin‐ichi

“…We prepared novel planar chiral monophosphine ligands bearing ferrocene‐triazole backbones. These ligands were produced in a series of steps that included…”
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Metal Complex‐Controlled Regio‐, Diastero‐ and Enantioselective 1,3‐Dipolar Cycloaddition of Azomethine Ylides with Benzo[b]thiophene Sulfones by Harada, Masato, Kato, Shuma, Haraguchi, Ryosuke, Fukuzawa, Shin‐ichi

“…The Cu(MeCN)4PF6/DTBM‐Segphos complex catalyzed the highly diastereo‐ and enantioselective 1,3‐dipolar cycloaddition of azomethine ylides with…”
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Copper-Catalyzed Asymmetric 1,3-Dipolar Cycloaddition of Imino Esters to Unsaturated Sultones by Furuya, Shohei, Kanemoto, Kazuya, Fukuzawa, Shin-Ichi

“…The asymmetric 1,3-dipolar cycloaddition of glycine imino esters to 1-propene-1,3-sultone or sulfocoumarins is described. The reaction was efficiently…”
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Copper‐Catalyzed Regio‐ and Diastereoselective 1,3‐Dipolar Cycloaddition Reactions of Glycine Imino Esters with 1‐Propene‐1,3‐sultone by Furuya, Shohei, Kato, Shuma, Kanemoto, Kazuya, Fukuzawa, Shin‐ichi

“…The 1,3‐dipolar cycloaddition of glycine imino esters (azomethine ylide precursors) with 1‐propene‐1,3‐sultone proceeded smoothly by using copper phosphine…”
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Silver/ThioClickFerrophos-Catalyzed 1,3-Dipolar Cycloaddition and Tandem Addition–Elimination Reaction of Morita–Baylis–Hillman Adducts by Suzuki, Yuko, Kanemoto, Kazuya, Inoue, Ayana, Imae, Kazumi, Fukuzawa, Shin-ichi

“…The asymmetric 1,3-dipolar cycloaddition of glycine imino esters to Morita–Baylis–Hillman (MBH) adducts or acetylated MBH adducts is described. The reaction…”
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Acid-Mediated Sulfonylthiolation of Arenes via Selective Activation of SS-Morpholino Dithiosulfonate by Kanemoto, Kazuya, Furuhashi, Koudai, Morita, Yoshitsugu, Komatsu, Teruyuki, Fukuzawa, Shin-ichi

“…A trifluoroacetic-acid-mediated desulfurilative sulfonylthiolation of arenes using SS-morpholino dithiosulfonate is described. This system is based on…”
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Synthetic, Structural, and Catalytic Studies of Well-Defined Allyl 1,2,3-Triazol-5-ylidene (tzNHC) Palladium Complexes by Terashima, Takahiro, Inomata, Sayuri, Ogata, Kenichi, Fukuzawa, Shin-ichi

“…A series of allyl 1,2,3‐triazol‐5‐ylidene (tzNHC) palladium complexes was prepared, and the structures of the complexes were fully characterized by NMR and…”
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Synthesis of Silaphenalenes by Ruthenium-Catalyzed Annulation between 1-Naphthylsilanes and Internal Alkynes through CH Bond Cleavage by Tokoro, Yuichiro, Sugita, Kengo, Fukuzawa, Shin-ichi

“…Ruthenium‐catalyzed annulation of 1‐naphthylsilanes with internal alkynes afforded silaphenalenes through cleavage of the CH bond at the 8‐position of the…”
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Highly Enantioselective Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Ylide Catalyzed by a Copper(I)/ClickFerrophos Complex by Fukuzawa, Shin-ichi, Oki, Hiroshi

“…A copper(I)/ClickFerrophos complex catalyzed the asymmetric 1,3-dipolar cycloaddition reaction of methyl N-benzylideneglycinate (the source of azomethine…”
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Silver-Catalyzed Diastereo- and Enantioselective Michael Addition and 1,3-Dipolar Cycloaddition Reactions of Imino Esters to 3‑Methyl-4-nitro-5-styrylisoxazoles by Kato, Shuma, Suzuki, Yuko, Suzuki, Kota, Haraguchi, Ryosuke, Fukuzawa, Shin-ichi

“…The AgOAc/ThioClickFerrophos complex catalyzed conjugate additions and 1,3-dipolar cycloadditions of 3-methyl-4-nitro-5-styrylisoxazoles with…”
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Twisted Polycyclic Aromatic Systems Prepared by Annulation of Bis(arylethynyl)arenes with Biphenylboronic Acids by Tokoro, Yuichiro, Oishi, Anna, Fukuzawa, Shin-ichi

“…Twisted polycyclic aromatic hydrocarbons (PAHs) were prepared by the successive rhodium‐catalyzed annulation and dehydrogenative cyclization of…”
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Palladium‐Catalyzed Formylation of Alkenylzinc Reagents with S‐(4‐Nitrophenyl) Thioformate by Haraguchi, Ryosuke, Tanazawa, Sho‐go, Tokunaga, Naoya, Fukuzawa, Shin‐ichi

“…We report the synthesis of enal compounds by palladium‐catalyzed formylation of alkenylzinc reagents with S‐(4‐nitrophenyl) thioformate. Various functional…”
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Helical Folding of Hydroxy‐Substituted N‐Hetero‐ortho‐phenylenes Directed by Intramolecular Hydrogen Bonds by Tokoro, Yuichiro, Ohtsuka, Nobuhiko, Kusakabe, Akinori, Fukuzawa, Shin‐ichi

“…Derivatives of the ortho‐phenylene hexamer containing pyridine moieties and hydroxy groups were prepared through Negishi cross‐coupling reactions between…”
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Nickel-Catalyzed Three-Component Coupling between Aryl Aldehydes, Norbornenes, and Silanes Leading to Indanols through Aromatic CH Bond Activation of Aryl Aldehydes by Ogata, Kenichi, Atsuumi, Yuka, Shimada, Daisuke, Fukuzawa, Shin-ichi

“…The first example of the title reaction involving the combination of an aryl aldehyde, norbornene, and silane has been developed (see scheme). The reaction…”
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Copper- and Silver-Catalyzed Diastereo- and Enantioselective Conjugate Addition Reaction of 1‑Pyrroline Esters to Nitroalkenes: Diastereoselectivity Switch by Chiral Metal Complexes by Koizumi, Akihiro, Kimura, Midori, Arai, Yuri, Tokoro, Yuichiro, Fukuzawa, Shin-ichi

“…syn-Diastereoselective conjugate addition of 1-pyrroline esters to nitroalkenes in good yields with an excellent enantioselectivity by using CuOAc/Me-FcPHOX…”
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Ligand-Controlled Stereodivergent, Enantioselective Conjugate Addition of 2‑Oxazoline- and 2‑Thiazoline-4-carboxylate to Nitroalkene Catalyzed by Chiral Copper Complexes by Matsuda, Yukiko, Koizumi, Akihiro, Haraguchi, Ryosuke, Fukuzawa, Shin-ichi

“…The copper-catalyzed asymmetric conjugate addition of 2-oxazoline- and 2-thiazoline-4-carboxylate to a nitroalkene proceeded to give either the syn or anti…”
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Synthesis and Structure of N-Hetero-ortho-phenylene Hexamers Containing 2,3-Substituted Pyridine Moieties by Tokoro, Yuichiro, Ohtsuka, Nobuhiko, Toh, Ayumi, Fukuzawa, Shin-ichi

“…N‐Hetero‐ortho‐phenylene hexamers with two 2,3‐substituted pyridine moieties (i.e., 1a–c) were prepared by palladium‐catalyzed homocoupling with…”
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