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(25) Chemoselective Cleavage and Transamidation of Tertiary p-Methoxybenzyl Amides under Metal-Free Photoredox Catalysis
(25) Chemoselective Cleavage and Transamidation of Tertiary p-Methoxybenzyl Amides under Metal-Free Photoredox Catalysis
H.-C. Jeong, H.-J. Lee*, K. Maruoka*, Org. Lett., 26, 9513–9518 (2024).
(24) Asymmetric phase-transfer catalysis
(24) Asymmetric phase-transfer catalysis
H.-J. Lee*, K. Maruoka*, Nat. Rev. Chem., 8, 851–869 (2024).
(23) Chemoselective Approach to Versatile Acyl Fluorides by Photoinduced Activation of p-Methoxybenzyl Esters
(23) Chemoselective Approach to Versatile Acyl Fluorides by Photoinduced Activation of p-Methoxybenzyl Esters
H.-C. Jeong, H.-J. Lee*, K. Maruoka*, Org. Lett., 26, 7956–7960 (2024).
(22) Metal-Free Generation of Acyl Fluorides via Activation of Cyclopropyl Esters using a Hypervalent Iodine(III) Species and Selectfluor.
(22) Metal-Free Generation of Acyl Fluorides via Activation of Cyclopropyl Esters using a Hypervalent Iodine(III) Species and Selectfluor.
E.-S. Choi, H.-J. Lee*, K. Maruoka*, Asian J. Org. Chem., 13, e202400398 (2024).
(21) Cr-catalysed ethylene dimerization in an ionic liquid-organic solvent biphasic system with perfect 1-butene selectivity.
(21) Cr-catalysed ethylene dimerization in an ionic liquid-organic solvent biphasic system with perfect 1-butene selectivity.
N. T. K. Chau, S. Kim, H.-J. Lee, M. Lee, Y.-M. Chung*, Chem. Commun., 60, 168–171 (2024).
(20) Efficient amide formation from non-activated cyclopropyl ester via acyl fluoride generation using hypervalent iodine(III) reagent and Selectfluor.
(20) Efficient amide formation from non-activated cyclopropyl ester via acyl fluoride generation using hypervalent iodine(III) reagent and Selectfluor.
E.-S. Choi, H.-C. Jeong, Y.-L. Han, H.-J. Lee*, K. Maruoka*, Asian J. Org. Chem., 12, e202300333 (2023).
(19) Recent Asymmetric Phase-Transfer Catalysis with Chiral Binaphthyl-Modified and Related Phase-Transfer Catalysts over the Last 10 Years
(19) Recent Asymmetric Phase-Transfer Catalysis with Chiral Binaphthyl-Modified and Related Phase-Transfer Catalysts over the Last 10 Years
H.-J. Lee*, K. Maruoka*, Chem. Rec., e202200286 (2023).
(18) Development of a Catalytic Ester Activation Protocol for the Efficient Formation of Amide Bonds using an Ar−I/HF⋅pyridine/mCPBA System
(18) Development of a Catalytic Ester Activation Protocol for the Efficient Formation of Amide Bonds using an Ar−I/HF⋅pyridine/mCPBA System
H.-J. Lee*, Eun-Sol Choi, K. Maruoka*, Asian J. Org. Chem., 11, e202200483 (2022).
(17) Design of Bifunctional Amino Tf-Amide Organocatalysts and Applications in Various Asymmetric Transformations
(17) Design of Bifunctional Amino Tf-Amide Organocatalysts and Applications in Various Asymmetric Transformations
H.-J. Lee*, K. Maruoka*, Chem. Rec., 22, e202280501 (2022).
(Selected as cover picture)
(16) Metal-Free Approach for Hindered Amide-Bond Formation with Hypervalent Iodine(III) Reagents: Application to Hindered Peptide Synthesis
(16) Metal-Free Approach for Hindered Amide-Bond Formation with Hypervalent Iodine(III) Reagents: Application to Hindered Peptide Synthesis
(Highlighted in SYNFACTS 2021, 17, 0828)
H.-J. Lee, X. Huang, S. Sakaki, K. Maruoka, Green Chem., 23, 848–855 (2021).
(15) Development of New Radical-mediated Selective Reactions Promoted by Hypervalent Iodine(III) Reagents
(15) Development of New Radical-mediated Selective Reactions Promoted by Hypervalent Iodine(III) Reagents
A. Matsumoto, H.-J. Lee, K. Maruoka, Chem. Rec., 21, 1342–1357 (2021).
(14) Design of New Amino Tf-Amide Organocatalysts: Environmentally Benign Approach to Asymmetric Aldol SynthesisEnantioselective
(14) Design of New Amino Tf-Amide Organocatalysts: Environmentally Benign Approach to Asymmetric Aldol SynthesisEnantioselective
H.-J. Lee, N. Arumugam, A. I. Almansour, R. S. Kumar, K. Maruoka, Synlett, 30, 401–404 (2019).
(13) Alkynylation of Isatin Derivatives Using a Chiral Phase-Transfer/Transition-Metal Hybrid Catalyst System
(13) Alkynylation of Isatin Derivatives Using a Chiral Phase-Transfer/Transition-Metal Hybrid Catalyst System
S. Paria, H.-J. Lee, K. Maruoka, ACS Catal., 9, 2395–2399 (2019).
(12) Synthesis of Enantiopure 2-Alkyl-1,3,3-Trinitroazetidines
(12) Synthesis of Enantiopure 2-Alkyl-1,3,3-Trinitroazetidines
H.-J. Ha, S.-J. Lee, D.-H. Chang, H.-J. Lee, B. Kim, S. H. Kim, J. S. Kim, C.-W. Cho, Bull. Korean Chem. Soc., 40, 872–873 (2019).
(11) Practical Synthesis of Four Different Pseudoenantiomeric Organocatalysts with Both Cis- and Trans-Substituted 1,2-Cis-cyclohexanediamine Structures from a Common Intermediate
(11) Practical Synthesis of Four Different Pseudoenantiomeric Organocatalysts with Both Cis- and Trans-Substituted 1,2-Cis-cyclohexanediamine Structures from a Common Intermediate
H.-J. Lee, N. Arumugam, A. I. Almansour, R. S. Kumar, K. Maruoka, Tetrahedoron, 74, 5263–5269 (2018).
(10) Catalytic Enantioselective Synthesis of Carboxy-substituted 2-Isoxazolines by Cascade Oxa-Michael-Cyclization
(10) Catalytic Enantioselective Synthesis of Carboxy-substituted 2-Isoxazolines by Cascade Oxa-Michael-Cyclization
H.-J. Lee, B. Eun, E. Sung, G. T. Hwang, Y. K. Ko, C.-W. Cho, Org. Biomol. Chem., 16, 657–664 (2018).
(9) Practical Synthesis of Two Different Pseudoenantiomeric Organocatalysts with cis-Cyclohexanediamine Structure from a Common Chiral Source
(9) Practical Synthesis of Two Different Pseudoenantiomeric Organocatalysts with cis-Cyclohexanediamine Structure from a Common Chiral Source
H.-J. Lee, S. A. Moteki, N. Arumugam, A. I. Almansour, R. S. Kumar, Y. Liu, K. Maruoka, Asian J. Org. Chem., 6, 1226–1230 (2017).
(8) A Two-Photon Fluorescent Probe for Lysosomal Zinc Ions
(8) A Two-Photon Fluorescent Probe for Lysosomal Zinc Ions
H.-J. Lee, C.-W. Cho, H. Seo, S. Singha, Y. W. Jun, K.-H. Lee, Y. Jung, K.-T. Kim, S. Park, S. C. Bae, K. H. Ahn, Chem. Commun., 52, 124–127 (2016).
(7) Enantioselective Phase-Transfer-Catalyzed Synthesis of Chiral N-Substituted 3,3-Dinitroazetidines by Aza-Michael Reaction
(7) Enantioselective Phase-Transfer-Catalyzed Synthesis of Chiral N-Substituted 3,3-Dinitroazetidines by Aza-Michael Reaction
H.-J. Lee, C.-W. Cho, J. Org. Chem., 80, 11435–11440 (2015).
(6) Asymmetric Synthesis of Chiral 2-Alkyl-3,3-Dinitro-1-Tosylazetidines
(6) Asymmetric Synthesis of Chiral 2-Alkyl-3,3-Dinitro-1-Tosylazetidines
H.-S. Yun, H.-J. Lee, D.-H. Chang, S.-J. Lee, S. H. Kim, J. S. Kim, C.-W. Cho, Bull. Korean Chem. Soc., 36, 1524–1525 (2015).
(5) Asymmetric Synthesis of Chiral Pyrrolizine-based Triheterocycles by Organocatalytic Cascade Aza-Michael‒Aldol reactions
(5) Asymmetric Synthesis of Chiral Pyrrolizine-based Triheterocycles by Organocatalytic Cascade Aza-Michael‒Aldol reactions
H.-J. Lee, C.-W. Cho, Eur. J. Org. Chem., 387–394 (2014).
(4) Cinchona-Based Primary Amine-Catalyzed Asymmetric Cascade Aza-Michael‒Aldol Reactions of Enones with 2-(1H-Pyrrol-2-yl)-2-oxoacetates: Synthesis of Chiral Pyrrolizines with Multistereocenters
(4) Cinchona-Based Primary Amine-Catalyzed Asymmetric Cascade Aza-Michael‒Aldol Reactions of Enones with 2-(1H-Pyrrol-2-yl)-2-oxoacetates: Synthesis of Chiral Pyrrolizines with Multistereocenters
H.-J. Lee, C.-W. Cho, J. Org. Chem., 78, 3306–3312 (2013).
(3) Chemoselective Suzuki Cross-Coupling Reactions of Chiral Pyrrolizines
(3) Chemoselective Suzuki Cross-Coupling Reactions of Chiral Pyrrolizines
H.-J. Lee, C.-W. Cho, Bull. Korean Chem. Soc., 32, 359–360 (2011).
(2) Concise Asymmetric Formal Synthesis of Pyrrolopiperazinone Natural Products by Tandem Cross Metathesis/Intramolecular Aza-Conjugate Addition
(2) Concise Asymmetric Formal Synthesis of Pyrrolopiperazinone Natural Products by Tandem Cross Metathesis/Intramolecular Aza-Conjugate Addition
S.-H. Kwon, H.-J. Lee, C.-W. Cho, Bull. Korean Chem. Soc., 32, 315–316 (2011).
(1) Organocatalytic Asymmetric Synthesis of Chiral Pyrrolizines by Cascade Conjugate Addition–Aldol Reactions
(1) Organocatalytic Asymmetric Synthesis of Chiral Pyrrolizines by Cascade Conjugate Addition–Aldol Reactions
J.-Y. Bae, H.-J. Lee, S.-H. Youn, S.-H. Kwon, C.-W. Cho, Org. Lett., 12, 4352–4355 (2010).
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