2021-2024

28.

Iridium-catalyzed asymmetric allenylic substitution of tertiary racemic allenylic alcohols with indoles

Takahiro Sawano, Manami Kobayashi, Momoko Ishikawa, Eri Ishikawa and Ryo Takeuchi*, Org. Chem. Front. 2024, DOI:10.1039/D4QO01671H

27.

Iridium-Catalyzed [2 + 2 + 2] Cycloaddition of Bithiophen-Linked Diynes with Nitriles: Scope and Mechanistic Study with Quantum Chemical Calculation

Takahiro Sawano ,  Kazuki Urasawa ,  Ryosuke Sugiura ,  Kaito Aoyama ,  Kaito Sugahara ,  Koito Tanaka ,  Hiromi Hosaka ,  Masami Kaneko ,  Yuzo Yoshida ,  Eri Ishikawa ,  Takeshi Yoshikawa ,  Ken Sakata* , and  Ryo Takeuchi*, J. Org. Chem. 2024, DOI:10.1021/acs.joc.4c00754

26.

Iridium-Catalyzed Asymmetric Allylation of Indoles via Kinetic Resolution of 1-Alken-4-yn-3-ols

Takahiro Sawano,Yuki Yasumura, Kyohei Kuwabara, Hikaru Sugiura, Kana Takahashi, Eri Ishikawa, Ryo Takeuchi, Synlet.202334, 2491-2495. [LINK]

25.

Iridium-Catalyzed Branch-Selective Hydroalkylation of Simple Alkenes with Malonic Amides and Malonic Esters

Takahiro Sawano, Masaki Ono, Ami Iwasa, Masaya Hayase, Juri Funatsuki, Ayumu Sugiyama, Eri Ishikawa, Takeshi Yoshikawa, Ken Sakata, and Ryo Takeuchi, J. Org. Chem.202388, 1545-1559. [LINK]

24.

Synthesis of azafluoranthenes by iridium-catalyzed [2 + 2 + 2] cycloaddition and evaluation of their fluorescence properties

Takahiro Sawano, Kaho Takamura, Tomoka Yoshikawa, Kayo Murata, Marina Koga, Risa Yamada, Takahide Saito, Kazumasa Tabata, Yugo Ishii, Wataru Kashihara, Tatsuya Nishihara, Kazuhito Tanabe, Tadashi Suzuki and Ryo Takeuchi, Org. Biomol. Chem.202321, 323-331. [LINK]

23.

Recent advances in iridium-catalyzed enantioselective allylic substitution using phosphoramidite-alkene ligands

Takahiro Sawano, Ryo Takeuchi, Catal. Sci. Tec.202212, 4100-4112. [LINK]

22.

Iridium-catalyzed C3-selective asymmetric allylation of 7-azaindoles with secondary allylic alcohols

Takahiro Sawano, Takeshi Matsui, Marina Koga, Eri Ishikawa, Ryo Takeuchi, Chem. Commun.202157, 9684-9687. [LINK]

2016-2020

21.

Iridium-Catalyzed Hydroalkylation of Aliphatic Alkenes with β-Ketoesters: Formal Hydroalkylation with Methyl Ketones

Takahiro Sawano, Kei Ogihara, Jun Sagawa, Masaki Ono, and Ryo Takeuchi Org. Lett. 2020, 22, 6187−6191. [LINK]

20.

Regio- and Enantioselective Substrate-Directed Epoxidation

Takahiro Sawano and Hisashi Yamamoto Eur. J. Org. Chem. 2020, 2369–2378. [LINK]

19.

Synthesis of Anthraquinones by Iridium-Catalyzed [2 + 2 + 2] Cycloaddition of a 1,2-Bis(propiolyl)benzene Derivative with Alkynes

Takahiro Sawano, Yuko Toyoshima, Ryo Takeuchi, Inorganics20197, 138. [LINK]

18.

Enantioselective Epoxidation of beta,gamma-Unsaturated Carboxylic Acids by a Cooperative Binuclear Titanium Complex

Takahiro Sawano and Hisashi Yamamoto ACS Catal. 2019, 9, 3384–3388 [LINK]

17.

Substrate-Directed Catalytic Selective Chemical Reactions

Takahiro Sawano and Hisashi Yamamoto J. Org. Chem. 2018, 83, 9, 4889–4904. [LINK]

16.

Metal-organic layers stabilize earth-abundant metal-terpyridine diradical complexes for catalytic C-H activation

Zekai Lin,‡Nathan C. Thacker,‡ Takahiro Sawano,‡ Tasha Drake, Pengfei Ji, Guangxu Lan, Lingyun Cao, Shubin Liu, Cheng Wang and Wenbin Lin <‡ Co-First Author> Chem. Sci., 2018, 9, 143–151. [LINK]

15.

Cerium-Hydride Secondary Building Units in a Porous Metal-Organic Framework for Catalytic Hydroboration and Hydrophosphination

Pengfei Ji,† Takahiro Sawano,† Zekai Lin, Ania Urban, Dean Boures, and Wenbin Lin <† Co-First Author> J. Am. Chem. Soc. 2016, 138, 14860−14863. [LINK]

14.

Metal-Organic Frameworks Stabilize Mono(phosphine)-Metal Complexes for Broad-Scope Catalytic Reactions

Takahiro Sawano, Zekai Lin, Dean Boures, Bing An, Cheng Wang, and Wenbin Lin, J. Am. Chem. Soc. 2016, 138, 9783−9786. [LINK]

2008-2015

13

Robust, Chiral, and Porous BINAP-Based Metal-Organic Frameworks for Highly Enantioselective Cyclization Reactions

Takahiro Sawano, Nathan C. Thacker, Zekai Lin, Alexandra R. McIsaac, and Wenbin Lin J. Am. Chem. Soc. 2015, 137, 12241−12248. [LINK]

12.

Formation of Carbocycles via a 1,4-Rh Shift Triggered by a Rhodium-Catalyzed Addition of Terminal Alkynes to 3,3-Diarylcyclopropenes

Takahiro Sawano, Minoru Hashizume, Shouta Nishimoto, Keiyu Ou, and Takahiro Nishimura* Org. Lett. 2015, 17, 2630−2633. [LINK]

11.

The first chiral diene-based metal-organic frameworks for highly enantioselective carbon-carbon bond formation reactions

Takahiro Sawano, Pengfei Ji, Alexandra R. McIsaac, Zekai Lin, Carter W. Abney and Wenbin Lin* Chem. Sci., 2015, 6, 7163. [LINK]

10.

Privileged Phosphine-Based Metal−Organic Frameworks for Broad Scope Asymmetric Catalysis

Joseph M. Falkowski,† Takahiro Sawano,† Teng Zhang, Galen Tsun, Yuan Chen, Jenny V. Lockard, and Wenbin Lin*, J. Am. Chem. Soc. 2014, 136, 5213−5216. [LINK]

9.

Cobalt-Catalyzed Asymmetric Addition of Silylacetylenes to 1,1-Disubstituted Allenes

Takahiro Sawano, Keiyu Ou, Takahiro Nishimura,*, and Tamio Hayashi J. Org. Chem. 2013, 78, 8986−8993. [LINK]

8.

Cobalt-Catalyzed Asymmetric 1,6-Addition of (Triisopropylsilyl)-acetylene to α,β,γ,δ-Unsaturated Carbonyl Compounds

Takahiro Sawano, Akram Ashouri, Takahiro Nishimura and Tamio Hayash J. Am. Chem. Soc. 2012, 134, 18936−18939. [LINK]

7.

Cobalt-catalyzed asymmetric addition of silylacetylenes to oxa- and azabenzonorbornadienes

Takahiro Sawano, Keiyu Ou, Takahiro Nishimura* and Tamio Hayashi* Chem. Commun., 2012, 48, 6106–6108. [LINK]

6.

Cobalt-catalyzed conjugate addition of silylacetylenes to a,b-unsaturated ketones

Takahiro Nishimura,* Takahiro Sawano, Keiyu Ou and Tamio Hayashi Chem. Commun., 2011, 47, 10142–10144. [LINK]

5.

Rhodium-catalyzed enantioselective alkynylative cyclization of allenyl aldehydes with terminal alkynes

Xun-Xiang Guo, Takahiro Sawano, Takahiro Nishimura, Tamio Hayashi Tetrahedron Asymmetry 2010, 21, 1730-1736. [LINK]

4.

Iridium/Chiral Diene-Catalyzed Asymmetric 1,6-Addition of Arylboroxines to r,,γ,δ-Unsaturated Carbonyl Compounds

Takahiro Nishimura,* Yuichi Yasuhara, Takahiro Sawano, and Tamio Hayashi* J. Am. Chem. Soc. 2010, 132, 7872–7873. [LINK]

3.

Rhodium-catalyzed asymmetric conjugate alkynylation of nitroalkenes

Takahiro Nishimura,* Takahiro Sawano, Sumito Tokuji and Tamio Hayashi* Chem. Commun., 2010, 46, 6837–6839. [LINK]

2.

Rhodium-Catalyzed Asymmetric Conjugate Alkynylation of Enones with Alkynylsilanols

Takahiro Nishimura,* Sumito Tokuji, Takahiro Sawano, and Tamio Hayashi Org. Lett. 2009, 11, 3222-3225. [LINK]

1.

Asymmetric Synthesis ofb-Alkynyl Aldehydes by Rhodium-CatalyzedConjugate Alkynylation

Takahiro Nishimura,* Takahiro Sawano, and Tamio Hayashi Angew. Chem. Int. Ed. 2009, 48, 8057 –8059. [LINK]