Eiji Yamamoto &ndash; Research Output

2019

Direct transformation of terminal alkenes with H₂O into primary alcohols over metal oxide-supported Pd catalysts

Zhang, Z., Mamba, T., Yamamoto, E., Murayama, H., Ishida, T., Honma, T., Fujitani, T. & Tokunaga, M., Jun 5 2019, In : Applied Catalysis B: Environmental. 246, p. 100-110 11 p.

Research output: Contribution to journal › Article

alkene

Alkenes

Catalyst supports

Oxides

Olefins

Enantioselective Protonation of Enol Esters with Bifunctional Phosphonium/Thiourea Catalysts

Yamamoto, E., Wakafuji, K., Mori, Y., Teshima, G., Hidani, Y. & Tokunaga, M., Jun 7 2019, In : Organic Letters. 21, 11, p. 4030-4034 5 p.

Research output: Contribution to journal › Article

Thiourea

Protonation

thioureas

esters

Esters

1 Citation (Scopus)

The additive effect of amines on the dihydroxylation of buta-1,3-diene into butenediols by supported Pd catalysts

Zhang, Z., Mamba, T., Huang, Q. A., Murayama, H., Yamamoto, E., Honma, T. & Tokunaga, M., Oct 2019, In : Molecular Catalysis. 475, 110502.

Research output: Contribution to journal › Article

dienes

Catalyst supports

Amines

Morpholines

amines

2018

2 Citations (Scopus)

Dynamic Kinetic Resolution of N-Protected Amino Acid Esters via Phase-Transfer Catalytic Base Hydrolysis

Yamamoto, E., Wakafuji, K., Furutachi, Y., Kobayashi, K., Kamachi, T. & Tokunaga, M., Jul 6 2018, In : ACS Catalysis. 8, 7, p. 5708-5713 6 p.

Research output: Contribution to journal › Article

Amino acids

Hydrolysis

Esters

Amino Acids

Stereoselectivity

2017

5 Citations (Scopus)

Formal Nucleophilic Silyl Substitution of Aryl Halides with Silyllithium Reagents via Halogenophilic Attack of Silyl Nucleophiles

Yamamoto, E., Ukigai, S. & Ito, H., Nov 13 2017, In : Synlett. 28, 18, p. 2460-2464 5 p.

Research output: Contribution to journal › Article

Nucleophiles

Substitution reactions

32 Citations (Scopus)

Mechanistic Investigations of the Pd(0)-Catalyzed Enantioselective 1,1-Diarylation of Benzyl Acrylates

Orlandi, M., Hilton, M. J., Yamamoto, E., Toste, F. D. & Sigman, M. S., Sep 13 2017, In : Journal of the American Chemical Society. 139, 36, p. 12688-12695 8 p.

Research output: Contribution to journal › Article

Acrylates

Anions

Negative ions

Phosphates

Catalysis

2 Citations (Scopus)

Transition-Metal-Free Boryl Substitution Using Silylboranes and Alkoxy Bases

Yamamoto, E., Maeda, S., Taketsugu, T. & Ito, H., Jul 3 2017, In : Synlett. 28, 11, p. 1258-1267 10 p.

Research output: Contribution to journal › Article

Transition metals

Substitution reactions

Nucleophiles

Boron

Discrete Fourier transforms

9 Citations (Scopus)

Tris(trimethylsilyl)silylboronate Esters: Novel Bulky, Air- and Moisture-Stable Silylboronate Ester Reagents for Boryl Substitution and Silaboration Reactions

Yamamoto, E., Shishido, R., Seki, T. & Ito, H., Aug 28 2017, In : Organometallics. 36, 16, p. 3019-3022 4 p.

Research output: Contribution to journal › Article

moisture

reagents

esters

Esters

Substitution reactions

6 Citations (Scopus)

Wacker Oxidation of Terminal Alkenes Over ZrO₂-Supported Pd Nanoparticles Under Acid- and Cocatalyst-Free Conditions

Zhang, Z., Kumamoto, Y., Hashiguchi, T., Mamba, T., Murayama, H., Yamamoto, E., Ishida, T., Honma, T. & Tokunaga, M., Jan 1 2017, In : ChemSusChem. 10, 17, p. 3482-3489 8 p.

Research output: Contribution to journal › Article

alkene

Alkenes

Olefins

Nanoparticles

oxidation

2016

7 Citations (Scopus)

Copper(I)-catalyzed diastereoselective borylative exo-cyclization of alkenyl aryl ketones

Yamamoto, E., Kojima, R., Kubota, K. & Ito, H., Jan 23 2016, In : Synlett. 27, 2, p. 272-276 5 p., st-2015-u0477-l.

Research output: Contribution to journal › Article

Cyclization

Ketones

Copper

Derivatives

Catalysts

39 Citations (Scopus)

Development and Analysis of a Pd(0)-Catalyzed Enantioselective 1,1-Diarylation of Acrylates Enabled by Chiral Anion Phase Transfer

Yamamoto, E., Hilton, M. J., Orlandi, M., Saini, V., Toste, F. D. & Sigman, M. S., Dec 14 2016, In : Journal of the American Chemical Society. 138, 49, p. 15877-15880 4 p.

Research output: Contribution to journal › Article

Acrylates

Anions

Negative ions

Enantioselectivity

Alkenes

3 Citations (Scopus)

Direct Introduction of a Dimesitylboryl Group Using Base-Mediated Substitution of Aryl Halides with Silyldimesitylborane

Yamamoto, E., Izumi, K., Shishido, R., Seki, T., Tokodai, N. & Ito, H., Jan 1 2016, In : Chemistry - A European Journal. 22, 49, p. 17547-17551 5 p.

Research output: Contribution to journal › Article

Bearings (structural)

Boranes

Alkali Metals

Iodides

Alkali metals

2015

39 Citations (Scopus)

Boryl substitution of functionalized aryl-, heteroaryl- and alkenyl halides with silylborane and an alkoxy base: expanded scope and mechanistic studies

Yamamoto, E., Ukigai, S. & Ito, H., May 1 2015, In : Chemical Science. 6, 5, p. 2943-2951 9 p.

Research output: Contribution to journal › Article

Substitution reactions

Alkali Metals

Functional groups

Transition metals

alkoxyl radical

34 Citations (Scopus)

Copper(I)-catalyzed enantioselective nucleophilic borylation of aldehydes: An efficient route to enantiomerically enriched α-alkoxyorganoboronate esters

Kubota, K., Yamamoto, E. & Ito, H., Jan 14 2015, In : Journal of the American Chemical Society. 137, 1, p. 420-424 5 p.

Research output: Contribution to journal › Article

Enantioselectivity

Aldehydes

Protons

Copper

Esters

6 Citations (Scopus)

Erratum: Copper(I)-Catalyzed Borylative exo-Cyclization of Alkenyl Halides Containing Unactivated Double Bond(Journal of the American Chemical Society (2013) 135 (2635-2640) DOI: 10.1021/ja3104582)

Kubota, K., Yamamoto, E. & Ito, H., Oct 7 2015, In : Journal of the American Chemical Society. 137, 39, 1 p.

Research output: Contribution to journal › Comment/debate

Cyclization

Copper

50 Citations (Scopus)

Reaction mechanism of the anomalous formal nucleophilic borylation of organic halides with silylborane: Combined theoretical and experimental studies

Uematsu, R., Yamamoto, E., Maeda, S., Ito, H. & Taketsugu, T., Apr 1 2015, In : Journal of the American Chemical Society. 137, 12, p. 4090-4099 10 p.

Research output: Contribution to journal › Article

Bromine

Boron

Nucleophiles

Theoretical Models

Silicon

34 Citations (Scopus)

Silicon-tethered strategy for copper(I)-catalyzed stereo- and regioselective alkylboration of alkynes

Kubota, K., Iwamoto, H., Yamamoto, E. & Ito, H., Feb 6 2015, In : Organic Letters. 17, 3, p. 620-623 4 p.

Research output: Contribution to journal › Article

Alkynes

alkynes

Silicon

Copper

Stilbenes

2014

43 Citations (Scopus)

Copper(I)-catalyzed enantioselective synthesis of α-chiral linear or carbocyclic (e)-(γ-alkoxyallyl)boronates

Yamamoto, E., Takenouchi, Y., Ozaki, T., Miya, T. & Ito, H., Nov 26 2014, In : Journal of the American Chemical Society. 136, 47, p. 16515-16521 7 p.

Research output: Contribution to journal › Article

Cyclopentanes

Acetals

Aldehydes

Copper

Carbon

10 Citations (Scopus)

Formal nucleophilic boryl substitution of organic halides with Silylborane/Alkoxy base system

Yamamoto, E., Izumi, K., Horita, Y., Ukigai, S. & Ito, H., Jun 2014, In : Topics in Catalysis. 57, 10-13, p. 940-945 6 p.

Research output: Contribution to journal › Article

Bromides

Transition metals

Substitution reactions

Impurities

alkoxyl radical

1 Citation (Scopus)

Selective synthesis of organoboron compounds with copper(i)-phosphine complex catalysts

Yamamoto, E., Takenouchi, Y., Kubota, K. & Ito, H., Jul 1 2014, In : Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry. 72, 7, p. 758-769 12 p.

Research output: Contribution to journal › Review article

phosphine

Copper

Catalysts

Substitution reactions

Boron Compounds

2013

120 Citations (Scopus)

Copper(I)-catalyzed borylative exo -cyclization of alkenyl halides containing unactivated double bond

Kubota, K., Yamamoto, E. & Ito, H., Feb 20 2013, In : Journal of the American Chemical Society. 135, 7, p. 2635-2640 6 p.

Research output: Contribution to journal › Article

Chemical bonds

Cyclization

Alkenes

Olefins

Copper

25 Citations (Scopus)

Regio- and enantioselective monoborylation of alkenylsilanes catalyzed by an electron-donating chiral phosphine-Copper(I) complex

Kubota, K., Yamamoto, E. & Ito, H., Dec 16 2013, In : Advanced Synthesis and Catalysis. 355, 18, p. 3527-3531 5 p.

Research output: Contribution to journal › Article

phosphine

Regioselectivity

Enantioselectivity

Copper

Esters

2012

84 Citations (Scopus)

Anomalous reactivity of silylborane: Transition-metal-free boryl substitution of aryl, alkenyl, and alkyl halides with silylborane/alkoxy base systems

Yamamoto, E., Izumi, K., Horita, Y. & Ito, H., Dec 12 2012, In : Journal of the American Chemical Society. 134, 49, p. 19997-20000 4 p.

Research output: Contribution to journal › Article

Bromides

Transition metals

Substitution reactions

Metals

Functional groups

8 Citations (Scopus)

Bacteroides thetaiotaomicron VPI-5482 glycoside hydrolase family 66 homolog catalyzes dextranolytic and cyclization reactions

Kim, Y. M., Yamamoto, E., Kang, M. S., Nakai, H., Saburi, W., Okuyama, M., Mori, H., Funane, K., Momma, M., Fujimoto, Z., Kobayashi, M., Kim, D. & Kimura, A., Sep 1 2012, In : FEBS Journal. 279, 17, p. 3185-3191 7 p.

Research output: Contribution to journal › Article

cycloisomaltooligosaccharide glucanotransferase

Glycoside Hydrolases

Cyclization

Dextranase

Gene encoding

31 Citations (Scopus)

Hydrolytic enantioselective protonation of cyclic dienyl esters and a β-diketone with chiral phase-transfer catalysts

Yamamoto, E., Gokuden, D., Nagai, A., Kamachi, T., Yoshizawa, K., Hamasaki, A., Ishida, T. & Tokunaga, M., Dec 21 2012, In : Organic Letters. 14, 24, p. 6178-6181 4 p.

Research output: Contribution to journal › Article

Protonation

Ketones

ketones

esters

Condensation

44 Citations (Scopus)

Potassium tert-butoxide-mediated regioselective silaboration of aromatic alkenes

Ito, H., Horita, Y. & Yamamoto, E., Aug 18 2012, In : Chemical Communications. 48, 64, p. 8006-8008 3 p.

Research output: Contribution to journal › Article

Alkenes

Olefins

Transition metals

Potassium

potassium tert-butoxide

Recent trends of asymmetric catalysis with water as a nucleophile

Yamamoto, E., Dec 1 2012, In : Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry. 70, 9, p. 949-950 2 p.

Research output: Contribution to journal › Review article

Nucleophiles

Catalysis

Water

Transition metals

Substitution reactions

2011

22 Citations (Scopus)

Catalytic asymmetric hydrolysis: Asymmetric hydrolytic protonation of enol esters catalyzed by phase-transfer catalysts

Yamamoto, E., Nagai, A., Hamasaki, A. & Tokunaga, M., Jun 20 2011, In : Chemistry - A European Journal. 17, 26, p. 7178-7182 5 p.

Research output: Contribution to journal › Article

Protonation

Hydrolysis

Esters

Ammonium Hydroxide

Ammonium hydroxide

5 Citations (Scopus)

Highly atom efficient catalytic reactions utilizing water and alcohols as reagents

Hamasaki, A., Yamamoto, E., Itoh, H. & Tokunaga, M., Jan 1 2011, In : Journal of Organometallic Chemistry. 696, 1, p. 202-210 9 p.

Research output: Contribution to journal › Article

reagents

Hydrolysis

alcohols

Alcohols

Palladium

2010

1 Citation (Scopus)

Metal complexes-catalyzed hydrolysis, alcoholysis, and hydroalkoxylation

Tokunaga, M., Hamasaki, A., Yamamoto, E. & Itoh, H., Jul 1 2010, In : Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry. 68, 7, p. 738-744 7 p.

Research output: Contribution to journal › Article

Coordination Complexes

Hydrolysis

Palladium

Alkenes

Esters

2009

13 Citations (Scopus)

Kinetic resolution of P-Chirogenic compounds by palladium-catalyzed alcoholysis of vinyl ethers

Itoh, H., Yamamoto, E., Masaoka, S., Sakai, K. & Tokunaga, M., Aug 1 2009, In : Advanced Synthesis and Catalysis. 351, 11-12, p. 1796-1800 5 p.

Research output: Contribution to journal › Article

Palladium

Ethers

Kinetics

Diamines

vinyl ether

2008

11 Citations (Scopus)

Kinetic resolution of phosphoryl and sulfonyl esters of 1,1′-bi-2-naphthol via Pd-catalyzed alcoholysis of their vinyl ethers

Sakuma, T., Yamamoto, E., Aoyama, H., Obora, Y., Tsuji, Y. & Tokunaga, M., Jul 11 2008, In : Tetrahedron Asymmetry. 19, 13, p. 1593-1599 7 p.

Research output: Contribution to journal › Article

Naphthol

esters

Ethers

ethers

Esters