N. Sakai

Most-cited papers

1. Acyl Fluorides in Late Transition-Metal Catalysis.

   Yohei Ogiwara, N. Sakai

   2020Angewandte Chemie127 citations

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2. Reductive Amination/Cyclization of Keto Acids Using a Hydrosilane for Selective Production of Lactams versus Cyclic Amines by Switching of the Indium Catalyst.

   Yohei Ogiwara, Takuya Uchiyama, N. Sakai

   2016Angewandte Chemie99 citations

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3. Indium(III)-catalyzed knoevenagel condensation of aldehydes and activated methylenes using acetic anhydride as a promoter.

   Yohei Ogiwara, Keita Takahashi, Takefumi Kitazawa, N. Sakai

   2015Journal of Organic Chemistry77 citations

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4. Palladium-Catalyzed Reductive Conversion of Acyl Fluorides via Ligand-Controlled Decarbonylation.

   Yohei Ogiwara, Yuka Sakurai, H. Hattori, N. Sakai

   2018Organic Letters72 citations

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5. Acid Fluorides as Acyl Electrophiles in Suzuki–Miyaura Coupling

   Yohei Ogiwara, Daisuke Sakino, Yuka Sakurai, N. Sakai

   201754 citations

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6. Palladium-catalyzed Coupling of Benzoyl Halides with Aryltrifluorosilanes Leading to Diaryl Ketones

   Yohei Ogiwara, Y. Maegawa, Daisuke Sakino, N. Sakai

   201647 citations

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7. Catalytic C-H/C-F Coupling of Azoles and Acyl Fluorides.

   Yohei Ogiwara, Yurika Iino, N. Sakai

   2019Chemistry39 citations

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8. Benzoyl Fluorides as Fluorination Reagents: Reconstruction of Acyl Fluorides via Reversible Acyl C–F Bond Cleavage/Formation in Palladium Catalysis

   Yohei Ogiwara, S. Hosaka, N. Sakai

   202033 citations

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9. Palladium(II)/Copper(II)-Catalyzed C-H Sulfidation or Selenation of Arenes Leading to Unsymmetrical Sulfides and Selenides

   Kota Nishino, Shouya Tsukahara, Yohei Ogiwara, N. Sakai

   2019Annalen der Pharmacie32 citations Open access

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10. Cobalt-catalyzed oxidative annulation of aromatic tertiary amines with electron-deficient maleimides leading to tetrahydroquinoline derivatives

    N. Sakai, S. Matsumoto, Yohei Ogiwara

    201625 citations

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11. Copper(II)‐Catalyzed [4+1] Annulation of Propargylamines with N,O‐Acetals: Entry to the Synthesis of Polysubstituted Pyrrole Derivatives

    N. Sakai, Hiroaki Hori, Yohei Ogiwara

    201522 citations

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12. Indium-catalyzed reduction of secondary amides with a hydrosiloxane leading to secondary amines

    N. Sakai, Masashi Takeoka, Takayuki Kumaki, H. Asano +2 more

    201521 citations

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13. Indium-Catalyzed Direct Conversion of Lactones into Thiolactones and Selenolactones in the Presence of Elemental Sulfur and Selenium

    N. Sakai, Shuhei Horikawa, Yohei Ogiwara

    2017Synthesis20 citations

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14. Production of Quaternary α-Aminonitriles by Means of Indium-Catalyzed Three-Component Reaction of Alkynes, Amines, and Trimethylsilyl Cyanide.

    Yuta Hamachi, Moe Katano, Yohei Ogiwara, N. Sakai

    2016Organic Letters20 citations Open access

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15. Indium-catalyzed direct preparation of dibenzyl sulfides from benzyl alcohols and elemental sulfur with a hydrosilane and its application to the preparation of dibenzyl selenide

    T. Miyazaki, Masahiro Katayama, Shunsuke Yoshimoto, Yohei Ogiwara +1 more

    201618 citations

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16. Green Preparation of Dibenzothiophene Derivatives Using 2‐Biphenylyl Disulfides in the Presence of Molecular Iodine and Its Application to Dibenzoselenophene Synthesis

    Kota Nishino, Yohei Ogiwara, N. Sakai

    201717 citations

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17. Copper(II)-catalyzed oxidative N-nitrosation of secondary and tertiary amines with nitromethane under an oxygen atmosphere.

    N. Sakai, M. Sasaki, Yohei Ogiwara

    2015Chemical Communications17 citations

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18. Palladium(II)-Catalyzed Synthesis of Dibenzothiophenes from 2-Biphenylyl Disulfides by C-H Functionalization.

    Kota Nishino, Yohei Ogiwara, N. Sakai

    2018Chemistry16 citations

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19. Indium‐Catalyzed Deoxygenation of Sulfoxides with Hydrosilanes

    N. Sakai, R. Shimada, Yohei Ogiwara

    202114 citations

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20. Indium-Catalyzed Reductive Dithioacetalization of Carboxylic Acids with Dithiols: Scope, Limitations, and Application to Oxidative Desulfurization.

    Kota Nishino, Kohei Minato, T. Miyazaki, Yohei Ogiwara +1 more

    2017Journal of Organic Chemistry12 citations

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21. Copper(I)-catalyzed coupling reaction of aryl boronic acids with N,O-acetals and N,N-aminals under atmosphere leading to α-aryl glycine derivatives and diarylmethylamine derivatives

    N. Sakai, Hiroaki Hori, Y. Yoshida, T. Konakahara +1 more

    201512 citations

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22. Palladium-Catalyzed Cyclization of Alkynoic Acids To Form Vinyl Dioxanones Bearing a Quaternary Allylic Carbon.

    Yohei Ogiwara, Kazuya Sato, N. Sakai

    2017Organic Letters11 citations

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23. One-Pot Synthesis of α-Halo β-Amino Acid Derivatives via the Difunctional Coupling of Ethyl α-Diazoacetate with Silyl Halides and N,O-Acetals or Aromatic Tertiary Amines

    N. Sakai, K. Sasaki, Hiroki Suzuki, Yohei Ogiwara

    2020Synthesis10 citations

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24. Palladium-Catalyzed Annulation of Acyl Fluorides with Norbornene via Decarbonylation and CO Reinsertion.

    Yuka Sakurai, Yohei Ogiwara, N. Sakai

    2020Chemistry10 citations

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25. Copper-Catalyzed Production of Diaryl Sulfides Using Aryl Iodides and a Disilathiane

    Yohei Ogiwara, H. Maeda, N. Sakai

    2017Synlett : Accounts and Rapid Communications in Synthetic Organic Chemistry10 citations

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26. Indium‐Catalyzed Reductive Sulfidation of Aromatic Carboxylic Acids and Aldehydes with Elemental Sulfur to Prepare Symmetrical Benzyl Sulfides

    T. Miyazaki, Kota Nishino, Shunsuke Yoshimoto, Yohei Ogiwara +1 more

    201510 citations

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27. Group 4 Metallocene Difluoride/Palladium Bimetallic Catalysts for the Reductive Cross-Coupling of Alkynes with Aryl Iodides and Bromides.

    Keita Takahashi, Hiromitsu Morishita, Yohei Ogiwara, N. Sakai

    2018Journal of Organic Chemistry9 citations

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28. Copper-catalyzed Cyanation of Aryl Iodides Using Nitromethane

    Yohei Ogiwara, Hiromitsu Morishita, M. Sasaki, H. Imai +1 more

    20179 citations

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29. Copper-catalyzed [3+2] annulation of propargylic acetates with anilines in the presence of trimethylsilyl chloride leading to 2,3-disubstituted indoles via an aza-Claisen rearrangement

    N. Sakai, Kota Enomoto, Mitsumasa Takayanagi, T. Konakahara +1 more

    20169 citations

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30. Indium(III)-Catalyzed Reduction of Nitrobenzenes to Anilines: Scope and Limitations

    N. Sakai, Shun Asama, T. Konakahara, Yohei Ogiwara

    2015Synthesis9 citations

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31. One-pot preparation of pyrrole derivatives via the copper-catalyzed [4+1] annulation of propargylic amines with ethyl glyoxylate and phenylglyoxal in the presence of piperidine

    N. Sakai, Hiroki Suzuki, Hiroaki Hori, Yohei Ogiwara

    20178 citations

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32. Synthetic Strategies for Accessing Dibenzophosphole Scaffolds

    H. Hattori, K. Ishida, N. Sakai

    2023Synthesis7 citations

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33. Gallium-catalyzed reductive lactonization of γ-keto acids with a hydrosilane

    N. Sakai, Shuhei Horikawa, Yohei Ogiwara

    20167 citations

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34. Indium-catalyzed reductive three-component coupling reaction of aliphatic/aromatic carboxylic acids with t-butyl mercaptan leading to unsymmetrical dialkyl sulfides

    N. Sakai, Shunsuke Yoshimoto, T. Miyazaki, Yohei Ogiwara

    20167 citations

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35. Copper-Catalyzed Three-Component Coupling Reaction of Aryl Iodides, a Disilathiane, and Alkyl Benzoates Leading to a One-Pot Synthesis of Alkyl Aryl Sulfides

    N. Sakai, H. Maeda, Yohei Ogiwara

    2019Synthesis6 citations

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36. Construction of N-Heterocyclic Systems Containing a Fully Substituted Allylic Carbon by Palladium/Phosphine Catalysis.

    Yohei Ogiwara, Yui Suzuki, Kazuya Sato, N. Sakai

    2018Organic Letters6 citations

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37. Palladium-Catalyzed Reductive Coupling Reaction of Terminal Alkynes with Aryl Iodides Utilizing Hafnocene Difluoride as a Hafnium Hydride Precursor Leading to trans-Alkenes.

    Keita Takahashi, Yohei Ogiwara, N. Sakai

    2018Chemistry - An Asian Journal6 citations

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38. Carboxamides as N‐Alkylating Reagents of Secondary Amines in Indium‐Catalyzed Reductive Amination with a Hydrosilane

    Yohei Ogiwara, W. Shimoda, K. Ide, Takumi Nakajima +1 more

    20176 citations

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39. Indium-Catalyzed Reductive Sulfid­ation of Esters by Using Thiols: An Approach to the Diverse Synthesis of Sulfides

    T. Miyazaki, S. Kasai, Yohei Ogiwara, N. Sakai

    20166 citations

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40. One-pot Synthesis of Tetralin Derivatives from 3-Benzoylpropionic Acids: Indium-catalyzed Hydrosilylation of Ketones and Carboxylic Acids and Intramolecular Cyclization

    N. Sakai, Taichi Kobayashi, Yohei Ogiwara

    20156 citations

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41. Indium-Catalyzed Direct Conversion of Lactones into Thiolactones Using a Disilathiane as a Sulfur Source

    Yohei Ogiwara, Ken Takano, Shuhei Horikawa, N. Sakai

    2018Molecules5 citations Open access

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42. Indium(III) Isopropoxide as a Hydrogen Transfer Catalyst for Conversion of Benzylic Alcohols into Aldehydes or Ketones via Oppenauer Oxidation

    Yohei Ogiwara, Yuji Ono, N. Sakai

    2016Synthesis5 citations

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43. Phosphine‐Catalyzed Acyl‐Group Exchange Reaction between Carboxylic Acids and an Aroyl Fluoride

    H. Hattori, K. Ishida, Yohei Ogiwara, N. Sakai

    2022Annalen der Pharmacie4 citations Open access

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44. One‐Pot Synthesis of Dithioacetals and Diselenoacetals: An Indium‐Catalyzed Reductive Insertion into Disulfides and Diselenides with Orthoesters as a Methylene Source

    N. Sakai, S. Adachi, Shohei Ogawa, Ken Takahashi +1 more

    2020Asian Journal of Organic Chemistry4 citations Open access

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45. Indium-catalyzed Direct Conversion of Dibenzyl Ethers to Dibenzyl Sulfides Using Elemental Sulfur and a Hydrosilane and Its Application to the Preparation of Benzyl Selenides

    N. Sakai, Koji Takada, Masahiro Katayama, Yohei Ogiwara

    2018Chemistry Letters4 citations

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46. One-pot Two-step Conversion of Aromatic Carboxylic Acids and Esters to Aromatic Aldehydes Via Indium-Catalyzed Reductive Thioacetalization and Desulfurization

    N. Sakai, Kohei Minato, Yohei Ogiwara

    20174 citations

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47. Indium-catalyzed Reduction of a Nitroarene Using a Hydrosilane: A Selective Reduction Strategy for the Efficient Synthesis of Indoprofen

    Yohei Ogiwara, Yuka Sakurai, N. Sakai

    20174 citations

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48. SYNTHESIS AND IN VITRO ANTITUMOR ACTIVITY OF 9-HYDROXYELLIPTICINE DERIVATIVES WITH GLUCOSE CONJUGATION VIA TRIAZOLYLMETHYL SUCCINATE LINKER

    N. Sato, Y. Kawai, Yosuke Akaba, Shoji Honma +2 more

    20164 citations Open access

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49. Synthesis of 2-Alkylidene-3,1-Benzoxathiin-4-Ones by the Pummerer Type Reaction

    Masaki Yamanaka, S. Shimada, W. Andō, T. Konakahara +2 more

    20154 citations

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50. Synthesis of Dibenzotetrathiafulvalenes of Oxalic Acid with Electron-Rich Aromatic 1,2-Dithiols and The Application to Dithioacetalization with 9-Fluorenecarboxylic Acids or Dicarboxylic Acids

    N. Sakai, Kohei Minato, Shota Nakata, Yohei Ogiwara

    2022Synthesis3 citations

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