Reactions of benzyne with substituted benzenes.

スポンサーリンク

概要

• 論文の詳細を見る

• The reactions of benzyne with substituted benzenes (anisole, chlorobenzene, methyl benzoate, benzylidyne trifluoride and toluene) giving the Diels-Alder adducts were investigated, where two positionally isomeric adducts were possible, <I>i.e.</I>, a geminal-para adduct (1,4-adduct with respect to the substituent) and an ortho-meta adduct (2,5-adduct). From the competition reactions, relative reactivities of benzyne to substituted benzenes were estimated for the 1,4-addition and 2,5-addition. Markedly different substituent effects were observed. For the 1,4-addition, large negative ρ value (−1.79) was observed, but for the 2,5-addition, substituent effect was small. From benzyne and toluene, <I>o</I>-benzylbiphenyl (<B>13</B>) and 2-benzyl-3-phenylbenzo[5,6]bicyclo[2.2.2]octatriene (<B>14</B>) were obtained as the successive "ene" products together with the normal Diels-Alder adducts.

• 公益社団法人 日本化学会の論文

著者

• Yamada Hidenori

  Department Of Bioengineering Science Faculty Of Engineering Okayama University

• Yoshida Zenichi

  Department Of Aeronautical Engineering Kyoto University

• Tabushi Iwao

  Department of Pharmaceutical Sciences, Kyushu University

• Oda Ryohei

  Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University

• Tabushi Iwao

  Department oe Pharmaceutical Sciences, Kyashu University

関連論文

• Molecular Targeting for Epidermal Growth Factor Receptor Expressed on Breast Cancer Cells by Human Fusion Protein
• Intracellular Delivery of Glutathione S-transferase-fused Proteins into Mammalian Cells by Polyethylenimine-Glutathione Conjugates
• Protein Transduction Assisted by Polyethylenimine-Cationized Carrier Proteins
• Intracellular Delivery of Proteins into Mammalian Living Cells by Polyethylenimine-Cationization
• Rapid Response of Arabidopsis T87 Cultured Cells to Cytokinin through His-to-Asp Phosphorelay Signal Transduction
• Characterization of the APRR9 Pseudo-Response Regulator Belonging to the APRR1/TOC1 Quintet in Arabidopsis thaliana
• Evaluation of risk factors for dental caries from 6 to 8 years old children
• Stabilization of Lysozyme against Irreversible Inactivation by Suppression of Chemical Reactions
• Effects of Additives on Irreversible Inactivation of Lysozyme at Neutral pH and 100℃
• Anti-tumor effect in an in vivo model by human-derived pancreatic RNase with basic fibroblast growth factor insertional fusion protein through antiangiogenic properties
• RNase 3(ECP) Is an Extraordinarily Stable Protein among Human Pancreatic-Type RNases
• Transient Cell Proliferation with Polyethylenimine-Cationized N-Terminal Domain of Simian Virus 40 Large T-Antigen(ENZYMOLOGY, PROTEIN ENGINEERING, AND ENZYME TECHNOLOGY)
• Optimum Modification for the Highest Cytotoxicity of Cationized Ribonuclease
• Srabilization of Human RNase 1 by Introduction of a Disulfide Bond between Residues 4 and 118
• Convenient and Efficient In Vitro Folding of Disulfide-Containing Globular Protein from Crude Bacterial Inclusion Bodies^1
• The Type-A Response Regulator, ARR15, Acts as a Negative Regulator in the Cytokinin-Mediated Signal Transduction in Arabidopsis thaliana
• Beneficial Effect of Honeybee-collected Pollen Lump Extract on Benign Prostatic Hyperplasia (BPH) : A Double-blind, Placebo-controlled Clinical Trial
• Tumor Antigen Occurs in N-Glycan of Royal Jelly Glycoproteins : Honeybee Cells Synthesize T-Antigen Unit in N-Glycan Moiety
• Awareness Survey on Dental Care and Medical Ethics in a Community College for the Elderly
• Characterization of the Prr1 Response Regulator with Special Reference to Sexual Development in Schizosaccharomyces pombe(Biochemistry & Molecular Biology)
• His-to-Asp Phosphorelay Circuitry for Regulation of Sexual Development in Schizosaccharomyces pombe(Biochemistry & Molecular Biology)
• The Arabidopsis Sensor His-kinase, AHK4, Can Respond to Cytokinins
• Identification and Characterization of a Novel Gene, hos2^+, the Function of Which Is Necessary for Growth under High Osmotic Stress in Fission Yeast
• Identification and Characterization of a Novel Gene, hos3^+, the Function of Which Is Necessary for Growth under High Osmotic Stress in Fission Yeast
• A Fission Yeast Gene (prr1^+ ) That Encodes a Response Regulator Implicated in Oxidative Stress Response
• Clarification of the Promoter Structure of the Osmoregulated gpd1^+ Gene Encoding an Isozyme of NADH-dependent Glycerol-3-phosphate Dehydrogenase in Fission Yeast
• Construction and Characterization of a Deletion Mutant of gpd2 That Encodes an Isozyme of NADH-Dependent Glycerol-3-phosphate Dehydrogenase in Fission Yeast
• The Arabidopsis AHK4 Histidine Kinase is a Cytokinin-Binding Receptor that Transduces Cytokinin Signals Across the Membrane
• 350-kDa Royal Jelly Glycoprotein (Apisin), Which Stimulates Proliferation of Human Monocytes, Bears the β1-3Galactosylated N-Glycan : Analysis of the N-Glycosylation Site(Biochemistry & Molecular Biology)
• First Evidence for Occurrence of Galβ1-3GlcNAcβ1-4Man Unit in N-Glycans of Insect Glycoprotein : β1-3Gal and β1-4GlcNAc Transferases Are Involved in N-Glycan Processing of Royal Jelly Glycoproteins(Biochemistry & Molecular Biology)
• Occurrence of GalNAcβ1-4GlcNAc Unit in N-Glycan of Royal Jelly Glycoprotein(Biochemistry & Molecular Biology)
• Identification of Amino Acid Substitutions that Render the Arabidopsis Cytokinin Receptor Histidine Kinase AHK4 Constitutively Active
• Enzymatic Synthesis of Galactosylkojic Acid with Immobilized β-Galactosidase from Bacillus circulans
• Flavonoid glycosides and limonoids from Citrus molasses
• Characterization of Bombyx mori Sericins by the Partial Amino Acid Sequences
• Sericin Enhances Attachment of Cultured Human Skin Fibroblasts
• A novel asparagine-rich fibrous protein (Xenofibron) from the cocoons of the parasitic wasp Cotesia (=Apanteles) glomerata
• Proline-rick silk proteins produced by the larvae of the mulberry pyralid Glyphodes pyloalis
• Proteinaceous Component in the Froth Produced by Nymphs of the Spittle Insect Aphrophora intermedia
• Sericin-like Protein from the Cocoons of the Parasitic Wasp Apanteles glomeratus
• Isolation of Three Main Sericin Components from the Cocoon of the Silkworm, Bombyx mori(Biochemistry & Molecular Biology)
• Characterization of a Serine/Aspartic Acid-rich Fibrous Protein from the Parasitic Wasp Apanteles glomeratus
• Characterization of Silk Proteins from the Cocoons of Parasitic Wasps belonging to Brachonidae
• Characterization of the RcsC→YojN→RcsB Phosphorelay Signaling Pathway Involved in Capsular Synthesis in Escherichia coli(Biochemistry & Molecular Biology)
• Deletion of the yhhP Gene Results in Filamentous Cell Morphology in Escherichia coil
• Yellow Pigmentation of the Fibroin core in the Cocoon Fibers of Cricula trifenestrata
• Evidence for new beta 1-3 galactosyltransferase activity involved in biosynthesis of unusual N-glycan harboring T-antigen in Apis mellifera
• Extraction and Chromatographic Analysis of Cocoon Sericin of the Silkworm, Bombyx mori
• Flow through a Porous Wall with Convective Acceleration
• Construction of a dental caries prediction model by data mining
• Efficient electron flux conversion from strongly hydrophilic NADH model in the transmembrane electron transfer by flavolipid.
• Abnormal Benzo Substituent Effect on Free Radical Formation Process. A Local Symmetry Effect
• Reactions of benzyne-silver cation complex with substituted benzenes.
• Reactions of benzyne with substituted benzenes.
• Computer counting of the number of water molecules in the first layer of crystalline water clathrate.
• Preparations and properties of some derivatives of pseudo-geminal ketone of tris(2.2.2)paraxylylene.
• Reactions of Some Olefins with N-Chlorourea in the Presence of Acetonitrile
• Electronic Spectra and Structures of Organic π-Systems. IV. Electronic Spectra of Nitropyrroles
• Sulfur-carbonyl interaction in rigid .BETA.-keto sulfides.

もっと見る 閉じる

スポンサーリンク