Works matching AU Takizawa, Shinobu

Results: 38

Enantioselective Synthesis of α-Alkylidene-γ-Butyrolactones: Intramolecular Rauhut-Currier Reaction Promoted by Acid/Base Organocatalysts.

Published in:

Angewandte Chemie, 2012, v. 124, n. 22, p. 5519, doi. 10.1002/ange.201201542

By:

Takizawa, Shinobu;
Nguyen, Tue Minh-Nhat;
Grossmann, André;
Enders, Dieter;
Sasai, Hiroaki

Publication type:

Article

Enantioselective Synthesis of Isoindolines: An Organocatalyzed Domino Process Based On the aza-Morita-Baylis-Hillman Reaction.

Published in:

Angewandte Chemie, 2010, v. 122, n. 50, p. 9919, doi. 10.1002/ange.201004547

By:

Takizawa, Shinobu;
Inoue, Naohito;
Hirata, Shuichi;
Sasai, Hiroaki

Publication type:

Article

Enantioselective Organocatalyzed Formal [4+2] Cycloaddition of Ketimines with Allenoates: Easy Access to a Tetrahydropyridine Framework with a Chiral Tetrasubstituted Stereogenic Carbon Center.

Published in:

Asian Journal of Organic Chemistry, 2014, v. 3, n. 4, p. 412, doi. 10.1002/ajoc.201300244

By:

Takizawa, Shinobu;
Arteaga, Fernando Arteaga;
Yoshida, Yasushi;
Suzuki, Michitaka;
Sasai, Hiroaki

Publication type:

Article

Metal-Bridged Polymers as Insoluble Multicomponent Asymmetric Catalysts with High Enantiocontrol: An Approach for the Immobilization of Catalysts without Using any Support ( This work was supported by a Grant-in-Aid for Scientific Research from the...

Published in:

Angewandte Chemie, 2003, v. 115, n. 46, p. 5889, doi. 10.1002/ange.200352354

By:

Shinobu Takizawa;
Hidenori Somei;
Doss Jayaprakash;
Hiroaki Sasai

Publication type:

Article

Catalyst Analogue: A Concept for Constructing Multicomponent Asymmetric Catalysts (MAC) by Using a Polymer Support ( This work was supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology, Japan. We thank the technical staff in the Materials Analysis Center of ISIR, Osaka University. )

Published in:

Angewandte Chemie, 2003, v. 115, n. 19, p. 2194, doi. 10.1002/ange.200250536

By:

Takayoshi Arai;
Tetuya Sekiguti;
Kazuhiro Otsuki;
Shinobu Takizawa;
Hiroaki Sasai

Publication type:

Article

Tandem Photocatalyst‐Free Visible Light Aryl Azidation‐Intramolecular C−H Amination: One‐Pot Access to Carbazoles and Indoles from Areneazo‐2‐(2‐nitro)propanes.

Published in:

Advanced Synthesis & Catalysis, 2025, v. 367, n. 4, p. 1, doi. 10.1002/adsc.202401333

By:

Patil, Dilip V.;
Patel, Rahulkumar;
Takizawa, Shinobu;
Kim, Hun Y.;
Oh, Kyungsoo

Publication type:

Article

Electrochemical Synthesis of Hetero[7]helicenes Containing Pyrrole and Furan Rings via an Oxidative Heterocoupling and Dehydrative Cyclization Sequence.

Published in:

Advanced Synthesis & Catalysis, 2023, v. 365, n. 3, p. 373, doi. 10.1002/adsc.202201262

By:

Salem, Mohamed S. H.;
Khalid, Md. Imrul;
Sako, Makoto;
Higashida, Keigo;
Lacroix, Charlie;
Kondo, Masaru;
Takishima, Ryo;
Taniguchi, Taisei;
Miura, Masahiro;
Vo‐Thanh, Giang;
Sasai, Hiroaki;
Takizawa, Shinobu

Publication type:

Article

Practical Stereoselective Synthesis of C3‐Spirooxindole‐ and C2‐Spiropseudoindoxyl‐Pyrrolidines via Organocatalyzed Pictet‐Spengler Reaction/Oxidative Rearrangement Sequence.

Published in:

Advanced Synthesis & Catalysis, 2021, v. 363, n. 10, p. 2648, doi. 10.1002/adsc.202001472

By:

Kondo, Masaru;
Matsuyama, Naoki;
Aye, Tin Z.;
Mattan, Irshad;
Sato, Tomoyuki;
Makita, Yoshinori;
Ishibashi, Masami;
Arai, Midori A.;
Takizawa, Shinobu;
Sasai, Hiroaki

Publication type:

Article

Photoswitchable Chiral Organocatalysts: Photocontrol of Enantioselective Reactions.

Published in:

Chemical Record, 2023, v. 23, n. 7, p. 1, doi. 10.1002/tcr.202300040

By:

Kondo, Masaru;
Nakamura, Kento;
Krishnan, Chandu G.;
Sasai, Hiroaki;
Takizawa, Shinobu

Publication type:

Article

Bayesian Optimization-Assisted Screening to Identify Improved Reaction Conditions for Spiro-Dithiolane Synthesis.

Published in:

Molecules, 2023, v. 28, n. 13, p. 5180, doi. 10.3390/molecules28135180

By:

Kondo, Masaru;
Wathsala, Hettiarachchige Dona Piyumi;
Ishikawa, Kazunori;
Yamashita, Daisuke;
Miyazaki, Takeshi;
Ohno, Yoji;
Sasai, Hiroaki;
Washio, Takashi;
Takizawa, Shinobu

Publication type:

Article

Metal-Free Aerobic C–N Bond Formation of Styrene and Arylamines via Photoactivated Electron Donor–Acceptor Complexation.

Published in:

Molecules, 2023, v. 28, n. 1, p. 356, doi. 10.3390/molecules28010356

By:

Fan, Duona;
Sabri, Ahmed;
Sasai, Hiroaki;
Takizawa, Shinobu

Publication type:

Article

Two-Step Synthesis, Structure, and Optical Features of a Double Hetero[7]helicene.

Published in:

Molecules, 2022, v. 27, n. 24, p. 9068, doi. 10.3390/molecules27249068

By:

Salem, Mohamed S. H.;
Sabri, Ahmed;
Khalid, Md. Imrul;
Sasai, Hiroaki;
Takizawa, Shinobu

Publication type:

Article

Development of efficient methods for the immobilisation of multicomponent asymmetric catalysts.

Published in:

Journal of Experimental Nanoscience, 2006, v. 1, n. 4, p. 477, doi. 10.1080/17458080601067690

By:

Jayaprakash, Doss;
Takizawa, Shinobu;
Arai, Takayoshi;
Sasai, Hiroaki

Publication type:

Article

Phosphine-Catalyzed β, γ-Umpolung Domino Reaction of Allenic Esters: Facile Synthesis of Tetrahydrobenzofuranones Bearing a Chiral Tetrasubstituted Stereogenic Carbon Center.

Published in:

Angewandte Chemie International Edition, 2015, v. 54, n. 51, p. 15511, doi. 10.1002/anie.201508022

By:

Takizawa, Shinobu;
Kishi, Kenta;
Yoshida, Yasushi;
Mader, Steffen;
Arteaga, Fernando Arteaga;
Lee, Shoukou;
Hoshino, Manabu;
Rueping, Magnus;
Fujita, Makoto;
Sasai, Hiroaki

Publication type:

Article

Facile and Clean Oxidation of Alcohols in Water Using Hypervalent Iodine(.

Published in:

Angewandte Chemie International Edition, 2000, v. 39, n. 7, p. 1306, doi. 10.1002/(SICI)1521-3773(20000403)39:7<1306::AID-ANIE1306>3.0.CO;2-J

By:

Tohma, Hirofumi;
Takizawa, Shinobu;
Maegawa, Tomohiro;
Kita, Yasuyuki

Publication type:

Article

Phosphine-Catalyzed β,γ-Umpolung Domino Reaction of Allenic Esters: Facile Synthesis of Tetrahydrobenzofuranones Bearing a Chiral Tetrasubstituted Stereogenic Carbon Center.

Published in:

Angewandte Chemie, 2015, v. 127, n. 51, p. 15731, doi. 10.1002/ange.201508022

By:

Takizawa, Shinobu;
Kishi, KENta;
Yoshida, Yasushi;
Mader, SteffEN;
Arteaga, Fernando Arteaga;
Lee, Shoukou;
Hoshino, Manabu;
Rueping, Magnus;
Fujita, Makoto;
Sasai, Hiroaki

Publication type:

Article

Enantioselective Synthesis of α-Alkylidene-γ-Butyrolactones: Intramolecular Rauhut-Currier Reaction Promoted by Acid/Base Organocatalysts.

Published in:

Angewandte Chemie International Edition, 2012, v. 51, n. 22, p. 5423, doi. 10.1002/anie.201201542

By:

Takizawa, Shinobu;
Nguyen, Tue Minh-Nhat;
Grossmann, André;
Enders, Dieter;
Sasai, Hiroaki

Publication type:

Article

Enantioselective Synthesis of Isoindolines: An Organocatalyzed Domino Process Based On the aza-Morita-Baylis-Hillman Reaction.

Published in:

Angewandte Chemie International Edition, 2010, v. 49, n. 50, p. 9725, doi. 10.1002/anie.201004547

By:

Takizawa, Shinobu;
Inoue, Naohito;
Hirata, Shuichi;
Sasai, Hiroaki

Publication type:

Article

Impact of helical elongation of symmetric oxa[n]helicenes on their structural, photophysical, and chiroptical characteristics.

Published in:

Chirality, 2024, v. 36, n. 5, p. 1, doi. 10.1002/chir.23673

By:

Salem, Mohamed S. H.;
Sharma, Rubal;
Suzuki, Seika;
Imai, Yoshitane;
Arisawa, Mitsuhiro;
Takizawa, Shinobu

Publication type:

Article

Structural Features and Asymmetric Environment of i-Pr-SPRIX Ligand.

Published in:

Chirality, 2015, v. 27, n. 8, p. 532, doi. 10.1002/chir.22467

By:

Takenaka, Kazuhiro;
Lin, Xianjin;
Takizawa, Shinobu;
Sasai, Hiroaki

Publication type:

Article

Vanadium in Asymmetric Synthesis: Emerging Concepts in Catalyst Design and Applications.

Published in:

Chemistry - A European Journal, 2015, v. 21, n. 25, p. 8992, doi. 10.1002/chem.201406444

By:

Takizawa, Shinobu;
Sasai, Hiroaki;
Gröger, Harald

Publication type:

Article

DFT Study of a 5- endo- trig-Type Cyclization of 3-Alkenoic Acids by Using Pd-Spiro-bis(isoxazoline) as Catalyst: Importance of the Rigid Spiro Framework for Both Selectivity and Reactivity.

Published in:

Chemistry - A European Journal, 2013, v. 19, n. 29, p. 9518, doi. 10.1002/chem.201203189

By:

Gabr, Randa K.;
Hatakeyama, Takuji;
Takenaka, Kazuhiro;
Takizawa, Shinobu;
Okada, Yoshihiro;
Nakamura, Masaharu;
Sasai, Hiroaki

Publication type:

Article

Electrochemical Synthesis of 1,1′-Binaphthalene-2,2′-Diamines via Transition-Metal-Free Oxidative Homocoupling.

Published in:

Sustainable Chemistry, 2022, v. 3, n. 4, p. 551, doi. 10.3390/suschem3040034

By:

Fan, Duona;
Khalid, Md. Imrul;
Kamble, Ganesh Tatya;
Sasai, Hiroaki;
Takizawa, Shinobu

Publication type:

Article

Metal-Bridged Polymers as Insoluble Multicomponent Asymmetric Catalysts with High Enantiocontrol: An Approach for the Immobilization of Catalysts without Using any Support ( This work was supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology, Japan. We thank the technical staff in the Materials Analysis Center of ISIR, Osaka University. )

Published in:

Angewandte Chemie International Edition, 2003, v. 42, n. 46, p. 5711, doi. 10.1002/anie.200352354

By:

Shinobu Takizawa;
Hidenori Somei;
Doss Jayaprakash;
Hiroaki Sasai

Publication type:

Article

Catalyst Analogue: A Concept for Constructing Multicomponent Asymmetric Catalysts (MAC) by Using a Polymer Support ( This work was supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology, Japan. We thank the technical staff in the Materials Analysis Center of ISIR, Osaka University. )

Published in:

Angewandte Chemie International Edition, 2003, v. 42, n. 19, p. 2144, doi. 10.1002/anie.200250536

By:

Takayoshi Arai;
Tetuya Sekiguti;
Kazuhiro Otsuki;
Shinobu Takizawa;
Hiroaki Sasai

Publication type:

Article

Room‐Temperature, Metal‐Free, and One‐Pot Preparation of 2H‐Indazoles through a Mills Reaction and Cyclization Sequence.

Published in:

Chemistry - A European Journal, 2019, v. 25, n. 42, p. 9866, doi. 10.1002/chem.201902242

By:

Kondo, Masaru;
Takizawa, Shinobu;
Jiang, Yuzhao;
Sasai, Hiroaki

Publication type:

Article

Synthesis of Allylamine Derivatives via Intermolecular Aza‐Wacker‐Type Reaction Promoted by Palladium‐SPRIX Catalyst.

Published in:

Advanced Synthesis & Catalysis, 2020, v. 362, n. 17, p. 3558, doi. 10.1002/adsc.202000644

By:

Sen, Abhijit;
Zhu, Linpeng;
Takizawa, Shinobu;
Takenaka, Kazuhiro;
Sasai, Hiroaki

Publication type:

Article

Enantioselective One‐pot Synthesis of 3‐Azabicyclo[3.1.0]hexanes via Allylic Substitution and Oxidative Cyclization.

Published in:

Advanced Synthesis & Catalysis, 2020, v. 362, n. 7, p. 1537, doi. 10.1002/adsc.202000044

By:

Chaki, Bijan Mohon;
Takenaka, Kazuhiro;
Zhu, Linpeng;
Tsujihara, Tetsuya;
Takizawa, Shinobu;
Sasai, Hiroaki

Publication type:

Article

Chlorinative Cyclization of 1,6-Enynes by Enantioselective Palladium(II)/Palladium(IV) Catalysis.

Published in:

Advanced Synthesis & Catalysis, 2011, v. 353, n. 7, p. 1067, doi. 10.1002/adsc.201000926

By:

Takenaka, Kazuhiro;
Hashimoto, Shintaro;
Takizawa, Shinobu;
Sasai, Hiroaki

Publication type:

Article

Facile and Clean Oxidation of Alcohols in Water Using Hypervalent Iodine(III) Reagents.

Published in:

Advanced Synthesis & Catalysis, 2002, v. 344, n. 3/4, p. 328, doi. 10.1002/1615-4169(200206)344:3/4<328::AID-ADSC328>3.0.CO;2-S

By:

Tohma, Hirofumi;
Maegawa, Tomohiro;
Takizawa, Shinobu;
Kita, Yasuyuki

Publication type:

Article

Electrochemical synthesis of heterodehydro[7]helicenes.

Published in:

Communications Chemistry, 2022, p. 1, doi. 10.1038/s42004-022-00780-7

By:

Khalid, Md. Imrul;
Salem, Mohamed S. H.;
Sako, Makoto;
Kondo, Masaru;
Sasai, Hiroaki;
Takizawa, Shinobu

Publication type:

Article

Bayesian optimization-driven parallel-screening of multiple parameters for the flow synthesis of biaryl compounds.

Published in:

Communications Chemistry, 2022, v. 5, n. 1, p. 1, doi. 10.1038/s42004-022-00764-7

By:

Kondo, Masaru;
Wathsala, H. D. P.;
Salem, Mohamed S. H.;
Ishikawa, Kazunori;
Hara, Satoshi;
Takaai, Takayuki;
Washio, Takashi;
Sasai, Hiroaki;
Takizawa, Shinobu

Publication type:

Article

Short Syntheses of 4-Deoxycarbazomycin B, Sorazolon E, and (+)-Sorazolon E2.

Published in:

Chemistry - An Asian Journal, 2017, v. 12, n. 12, p. 1305, doi. 10.1002/asia.201700471

By:

Sako, Makoto;
Ichinose, Kazuya;
Takizawa, Shinobu;
Sasai, Hiroaki

Publication type:

Article

Antifouling Brominated Diterpenoids from Japanese Marine Red Alga Laurencia venusta Yamada.

Published in:

Chemistry & Biodiversity, 2023, v. 20, n. 8, p. 1, doi. 10.1002/cbdv.202300888

By:

Fukada, Ryosuke;
Yamagishi, Yukimasa;
Nagasaka, Misaki;
Osada, Daiki;
Nimura, Kazumi;
Oshima, Iori;
Tsujimoto, Kazuki;
Kirihara, Masayuki;
Takizawa, Shinobu;
Kikuchi, Norio;
Ishii, Takahiro;
Kamada, Takashi

Publication type:

Article

Enantioselective Aldol-Type Reaction Using Diketene.

Published in:

Synthetic Communications, 2004, v. 34, n. 24, p. 4487, doi. 10.1081/SCC-200043192

By:

Kawase, Takahiro;
Takizawa, Shinobu;
Jayaprakash, Doss;
Sasai, Hiroaki

Publication type:

Article

Bicyclo[3.3.1]nonanes as Synthetic Intermediates. XXIII. A Breakthrough by Lanthanoid Mediation in Nucleophilic Addition of Carbanions to the Inert “Fork Head” Carbonyl in Bicyclo[3.3.1]nonan-3-ones.

Published in:

Synthetic Communications, 1997, v. 27, n. 19, p. 3313, doi. 10.1080/00397919708005631

By:

Momose, Takefumi;
Takizawa, Shinobu;
Kirihara, Masayuki

Publication type:

Article

Synthesis and Structural and Optical Behavior of Dehydrohelicene-Containing Polycyclic Compounds.

Published in:

Molecules, 2024, v. 29, n. 2, p. 296, doi. 10.3390/molecules29020296

By:

Khalid, Md. Imrul;
Salem, Mohamed S. H.;
Takizawa, Shinobu

Publication type:

Article

Vanadium(V) Complex-Catalyzed One-Pot Synthesis of Phenanthridines via a Pictet-Spengler-Dehydrogenative Aromatization Sequence.

Published in:

Catalysts (2073-4344), 2020, v. 10, n. 8, p. 860, doi. 10.3390/catal10080860

By:

Sako, Makoto;
Losa, Romain;
Takiishi, Tomohiro;
Vo-Thanh, Giang;
Takizawa, Shinobu;
Sasai, Hiroaki

Publication type:

Article