Search Results - "MIURA, Tsuyoshi"
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Effect of 1,4-Dioxane Solvent on β-Glucuronidation Using Methyl 1,2,3,4-Tetra-O-acetyl-β-D-glucuronate as the Glycosyl Donor
Published in Chemical & pharmaceutical bulletin (2024)“…A facile and selective β-D-glucuronidation of alcohols, such as (−)-menthol, cholestanol, (+)- and (−)-borneols, and 2-adamantanol, using commercially…”
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2
Metal-Free Direct CH Perfluoroalkylation of Arenes and Heteroarenes Using a Photoredox Organocatalyst
Published in Advanced synthesis & catalysis (12-08-2013)“…We report the visible‐light‐induced trifluoromethylation of arenes and heteroarenes using sodium trifluoromethanesulfinate catalyzed by…”
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3
Asymmetric Conjugate Addition of Phosphonates to Enones Using Cinchona–Diaminomethylenemalononitrile Organocatalysts
Published in Journal of organic chemistry (06-03-2020)“…Asymmetric conjugate additions of phosphonates to trans-crotonophenone and chalcone derivatives using a diaminomethylenemalononitrile organocatalyst resulted…”
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4
Organocatalytic one-pot asymmetric synthesis of 6-trifluoromethyl-substituted 7,8-dihydrochromen-6-ol
Published in Tetrahedron letters (13-04-2022)“…[Display omitted] •A squaramide is a good catalyst for the asymmetric Friedel–Crafts alkylation of α,β-unsaturated trifluoromethyl ketones with aromatic…”
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5
Synthesis of 2-Substituted Indoles via Migration Reaction of 3-Substituted Indoles with Triflic Acid
Published in Chemical & pharmaceutical bulletin (2024)“…This study showcases the 1,2-migration reactions of alkyl and aryl groups on the indole molecule. Trifluoromethanesulfonic acid effectively facilitates the…”
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6
Facile Preparation of L-Iduronic Acid and α-L-Iduronidation Using Methyl 1,2,3,4-Tetra-O-acetyl-α-L-iduronate as Glycosyl Donor
Published in Chemical & pharmaceutical bulletin (01-09-2023)“…Methyl 1,2,3,4-tetra-O-acetyl-α-L-iduronate was prepared from methyl 1,2,3,4-tetra-O-β-D-glucuronate in two steps: Ferrier’s photobromination and subsequent…”
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7
Acylhydrazone Subunits as a Proton Cargo Delivery System in 7‐Hydroxyquinoline
Published in Chemistry : a European journal (11-08-2021)“…The reimagined concept of long‐range tautomeric proton transfer using crane subunits is shown by designing and synthesising two new acylhydrazones containing a…”
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8
A Facile α-Glucuronidation Using Methyl 1,2,3,4-Tetra-O-acetyl-D-glucuronate as Glycosyl Donor
Published in Chemical & pharmaceutical bulletin (01-08-2022)“…Some terpenyl 2,3,4-tri-O-acetyl-α-D-glucuronide methyl esters were facilely synthesized from commercially available methyl…”
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9
An effective and catalytic oxidation using recyclable fluorous IBX
Published in Chemical communications (Cambridge, England) (01-01-2011)“…Oxidation of alcohols in the presence of a catalytic amount of fluorous IBX and Oxone as a co-oxidant resulted in the corresponding carbonyl compounds in good…”
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10
Asymmetric Hydrophosphonylation of Aldehydes using a Cinchona-Diaminomethylenemalononitrile Organocatalyst
Published in Advanced synthesis & catalysis (14-12-2015)“…For the asymmetric hydrophosphonylation of aldehydes, an efficient organocatalytic approach with a diaminomethylenemalononitrile‐based hydrogen‐bonding donor…”
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11
Asymmetric conjugate addition of 5-benzylfurfurals to nitroalkenes using a diaminomethylenemalononitrile organocatalyst
Published in Tetrahedron letters (20-12-2017)“…[Display omitted] •Second example for asymmetric direct bisvinylogous conjugate addition with furfural.•All enantioselectivities were higher values in…”
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12
Organocatalytic asymmetric conjugate addition of substituted 5-benzylfurfurals to nitroalkenes based on stereocontrol of trienamine
Published in Tetrahedron letters (06-02-2020)“…[Display omitted] •Diaminomethylenemalononitrile is good catalyst for asymmetric ε-alkylation reactions.•High stereoselectivity by a methyl group at γ-position…”
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13
2-Chloroanthraquinone-catalyzed aerobic photo-oxidative synthesis of diacylamines from benzylamides
Published in Tetrahedron letters (14-05-2014)“…[Display omitted] In this Letter, we report the aerobic photo-oxidative synthesis of diacylamines from benzylamides in the presence of molecular oxygen and…”
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14
Aerobic photooxidative synthesis of benzimidazoles from aromatic aldehydes and diamines using catalytic amounts of magnesium iodide
Published in Tetrahedron letters (26-11-2014)“…[Display omitted] This Letter proposes a safe, mild, and environmentally benign method for the synthesis of benzimidazoles from aromatic aldehydes and diamines…”
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15
Highly efficient asymmetric conjugate addition of 5-benzylfurfurals to nitroalkenes using a thiourea organocatalyst
Published in Tetrahedron (19-04-2019)“…The asymmetric direct bisvinylogous conjugate addition of 5-benzylfurfural derivatives to nitroalkenes using a thiourea organocatalyst resulted in a…”
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16
Asymmetric Conjugate Addition of Nitroalkanes to Enones Using a Sulfonamide–Thiourea Organocatalyst
Published in Journal of organic chemistry (07-07-2017)“…The asymmetric conjugate addition of nitroalkanes to α,β-unsaturated ketones in the presence of a catalytic amount of a novel sulfonamide–thiourea…”
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17
Asymmetric Direct Vinylogous Conjugate Addition of Substituted Furanone Derivatives to (E)‐ and (Z)‐Benzoyl Acrylonitriles Using Organocatalysts
Published in Asian journal of organic chemistry (01-05-2022)“…Diaminomethylenemalononitrile organocatalysts efficiently promoted the asymmetric direct vinylogous conjugate addition of α‐angelica lactone to (E)‐ and…”
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18
Aerobic photooxidative cleavage of 1,3-diketones to carboxylic acids using 2-chloroanthraquinone
Published in Tetrahedron letters (13-11-2013)“…We developed direct aerobic photooxidation of 1,3-diketones to corresponding carboxylic acids in the presence of a catalytic amount of 2-chloroanthraquinone…”
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19
Stereoselective conjugate addition of carbonyl compounds to maleimides using a diaminomethyleneindenedione organocatalyst
Published in Tetrahedron: asymmetry (01-10-2016)“…[Display omitted] A diaminomethyleneindenedione motif can serve as an excellent double hydrogen bonding donor. Bifunctional chiral primary amine 3 bearing a…”
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20
Multiple cavitary lung lesions from colorectal cancer responding to chemotherapy
Published in Respiratory medicine case reports (01-01-2023)“…Lung metastasis is an uncommon cause of multiple cavitary lung lesions. Herein, we report a case of multiple cavitary lung lesions of colorectal cancer that…”
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