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2025
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24. Shuto Okuda, Yutaka Narita, Rikuo Hayashi, Taro Udagawa, Masahiro Sai*
​     1-Arylallyloxysilanes as Formal Precursors to Potassium Homoenolate
      Equivalents of Ketones

      Org. Lett.
 2025, 27, 4762–4766. (Q1, JCR 2024)
​      DOI: 10.1021/acs.orglett.5c01177
     (ChemRxiv 2025, preprint, DOI: 10.26434/chemrxiv-2025-t0vx1)

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23. Hiroki Ishikawa, Masahiro Sai*
​      Chiral Potassium Brønsted Base-Catalyzed Stereoselective Synthesis of 1,3-Diols
      via a Tandem Allylic Isomerization/Asymmetric Aldol–Tishchenko Reaction

      Adv. Synth. Catal. 2025, accepted. (Q1, JCR 2024)   Open Access 
      DOI: 10.1002/adsc.70108

     (ChemRxiv 2025, preprint, DOI: 10.26434/chemrxiv-2025-w9479)

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22. Takatoki Mizuno, Taro Udagawa, Masahiro Sai*
​     Asymmetric Intramolecular Oxa-Michael Addition of ε- and ζ-Hydroxy-
α,β-Unsaturated
      Esters Enabled by Chiral Crown Ether-Coordinated Potassium Base Catalysts
     
ChemRxiv 2025, preprint, DOI: 10.26434/chemrxiv-2025-lmb7j

22.tiff
2024
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      崔 允寛 
​    「オールドルーキーの挑戦」Message from Young Principal Researcher (MyPR)
      有機合成化学協会誌 ​2024, 82 (4), 379–381.
      DOI: 10.5059/yukigoseikyokaishi.82.379

2023
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21. Shuto Okuda, Yutaka Narita, Rikuo Hayashi, Masahiro Sai*
​     Regio- and Diastereoselective Synthesis of Unsymmetrical 1,4-Diketone-Derived
      (Z)-Monosilyl Enol Ethers via Siloxyallylpotassium Intermediates

      Chem. Commun. 2023, 59, 2939–2942. 
​      DOI: 10.1039/D2CC07097A
      (ChemRxiv2022, preprint, DOI: 10.26434/chemrxiv-2022-8djs0)

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20. Rikuo Hayashi, Yutaka Narita, Masahiro Sai*
​      
One-Pot Synthesis of 3-Functionalized (Z)-Silyl Enol Ethers from 1-Arylallylic
​      Alcohols by C,O-Difunctionalization of Dipotassio 
α,β-Dianion Intermediates

      Org. Biomol. Chem. 2023, 21, 4206–4209.
​      DOI: 10.1039/D3OB00199G
      (ChemRxiv2022, preprint, DOI: 10.26434/chemrxiv-2022-b33mt​)

20.tiff
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19. Momoka Shimaoka, Masahiro Sai*
​      
Silver-Catalyzed Tandem Cyclization for Syntheses of Azaoxa- and Diazaspirocycles 
      Eur. J. Org. Chem. 2023, 26, e202201404.
      DOI: 10.1002/ejoc.202201404
​      (ChemRxiv​, 2022​, preprint, DOI: 10.26434/chemrxiv-2022-j2xkk)

19.tiff
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18. Rikuo Hayashi, Kaori Ando, Taro Udagawa, Masahiro Sai*
​      
β-Functionalized and α,β-Difunctionalized Ketones from 1-Arylallylic Alcohols
      via Dipotassio
α,β-
Dianion Intermediates
      Adv. Synth. Catal. 2023, 365, 826–833.
      DOI: 10.1002/adsc.202201047
      (ChemRxiv, 2022​, preprint, DOI: 10.26434/chemrxiv-2022-7whfc)

​      • Selected as the Front Cover in Adv. Synth. Catal. (2023, issue 6)         

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17. Masahiro Sai,Takatoki Mizuno 
​      Potassium Base-Catalyzed Redox Isomerization of Propargylic Alcohols to Chalcones
      Synth. Commun. 2023, 53, 198–204.
      DOI: 10.1080/00397911.2022.2152695

17.tiff
2022
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16. Masahiro Sai*
​      KOtBu/DMSO Catalytic System for Isomerization of Allylic Alcohols to Ketones
      Eur. J. Org. Chem. 2022, e202200052.
      DOI: 10.1002/ejoc.202200052

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2021
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15. Masahiro Sai*
​      Potassium Base-Promoted Diastereoselective Synthesis of 1,3-Diols from Allylic Alcohols
      and Aldehydes through a Tandem Allylic-Isomerization/Aldol–Tishchenko Reaction

      Chem. Asian J. 202116, 4053–4056. 
​      DOI: 10.1002/asia.202101093

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14. Masahiro Sai*
​      A Tetraarylpyrrole-Based Phosphine Ligand for the Palladium-Catalyzed Amination of
      Aryl Chlorides 

      Adv. Synth. Catal. 2021, 363, 5422–5428. 
      DOI: 10.1002/adsc.202100731

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13. Masahiro Sai,* Hiroaki Kurouchi​
​      
Potassium Base-Catalyzed Michael Additions of Allylic Alcohols to α,β-Unsaturated Amides:
​      Scope and Mechanistic Insights

      Adv. Synth. Catal. 2021, 363, 3585–3591.
      DOI: 10.1002/adsc.202100272
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2020年まで

12. Masahiro Sai*

      Direct Synthesis of Indanes via Iron-Catalyzed Dehydrative Coupling/Friedel–Crafts Cyclization of

      Two Different Alcohols

      Eur. J. Org. Chem. 2019, 1102–1106.

      DOI: 10.1002/ejoc.201801573​

11. Masahiro Sai,* Seijiro Matsubara

      Copper-Catalyzed Direct and Stereoselective Synthesis of Conjugated Enynes from α-Allenols

      Adv. Synth. Catal. 2019, 361, 39–43.

      DOI: 10.1002/adsc.201801211​

10. Masahiro Sai*

      An Efficient Ga(OTf)3/Isopropanol Catalytic System for Direct Reduction of Benzylic Alcohols

      Adv. Synth. Catal. 2018, 360, 4330–4335.

      DOI: 10.1002/adsc.201801135​

9. Masahiro Sai*

    Direct Reduction of Allylic Alcohols Using Isopropanol as Reductant

    Adv. Synth. Catal. 2018, 360, 3482–3487.

    DOI: 10.1002/adsc.201800731

8. Masahiro Sai,* Hisashi Yamamoto*

    Chiral Brønsted Acid as a True Catalyst: Asymmetric Mukaiyama Aldol and Hosomi–Sakurai Allylation  

    Reactions

    J. Am. Chem. Soc. 2015, 137, 7091–7094. 

    DOI: 10.1021/jacs.5b04168​

7. Masahiro Sai,* Matsujiro Akakura, Hisashi Yamamoto*

    Chemoselective Silyl Transfer in the Mukaiyama Aldol Reaction Promoted by Super Silyl Lewis Acid

    Chem. Commun. 2014, 50, 15206–15208.

    DOI: 10.1039/C4CC05807K

6. Masahiro Sai, Seijiro Matsubara*

    Lithium(1+)-Catalyzed Nazarov-Type Cyclization of 1-Arylbuta-2,3-dien-1-ols: Synthesis of Benzofulvene

    Derivatives

    Synlett, 2014, 25, 2067–2071.

    DOI: 10.1055/s-0034-1378333

5. Masahiro Sai, Seijiro Matsubara*

    Silver-Catalyzed Intramolecular Chloroamination of Allenes: Easy Access to Functionalized 3-Pyrroline

    and Pyrrole Derivatives

    Org. Lett. 2011, 13, 4676–4679. 

    DOI: 10.1021/ol201895s

4. Masahiro Sai, Hideki Yorimitsu,* Koichiro Oshima*

    Allyl-, Allenyl-, and Propargyl-Transfer Reactions through Cleavage of C–C Bonds Catalyzed by an

    N-Heterocyclic Carbene/Copper Complex: Synthesis of Multisubstituted Pyrroles

    Angew. Chem. Int. Ed. 2011, 50, 3294–3298.

    DOI: 10.1002/anie.201100631​

 

3. Masahiro Sai, Hideki Yorimitsu,* Koichiro Oshima*

    Copper-Catalyzed Allylation of Alkyl Halides with Allylic Grignard Reagents

    Bull. Chem. Soc. Jpn. 2009, 82, 1194–1196.

    DOI: 10.1246/bcsj.82.1194​

2. Hiroki Miura, Kenji Wada,* Saburo Hosokawa, Masahiro Sai, Teruyuki Kondo, Masashi Inoue

    A Heterogeneous Ru/CeO2 Catalyst Effective for Transfer-Allylation from Homoallyl Alcohols to Aldehydes

    Chem. Commun. 2009, 45, 4112–4114.

    DOI: 10.1039/B901830A

1. Masahiro Sai, Hidenori Someya, Hideki Yorimitsu,* Koichiro Oshima*

    Copper-Catalyzed Reaction of Alkyl Halides with Cyclopentadienylmagnesium Reagent

    Org. Lett. 2008, 10, 2545–2547.

    DOI: 10.1021/ol800814k

​島根大学 材料エネルギー学部 崔研究室/Sai Laboratory @ Shimane University. 崔研究室

 

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