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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Chemistry, Organic -- Laboratory manuals. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (770 pages)
    Edition: 1st ed.
    ISBN: 9781483146287
    Language: English
    Note: Front Cover -- Organicum: Practical Handbook of Organic Chemistry -- Copyright Page -- Table of Contents -- Preface to the First German Edition -- Preface to the Fifth German Edition -- Preface to the First English Edition -- PART A: INTRODUCTION TO LABORATORY TECHNIQUE -- Chapter 1. Means and Methods for the Performance of Organic Chemical Reactions -- 1.1. Types of Glass and Glass Joints -- 1.2. Vessels -- 1.3. Condensers -- 1.4. Standard Apparatus for Organic Reactions -- 1.5. Stirring and Shaking -- 1.6. Metering and Introduction of Gases -- 1.7. Heating and Cooling -- 1.8. Working under Pressure -- 1.9. Working under Reduced Pressure -- 1.10. Drying -- Chapter 2. Separating Processes -- 2.1. Filtration and Centrifuging -- 2.2. Crystallization -- 2.3. Distillation and Rectification -- 2.4. Sublimation -- 2.5. Extraction and Distribution or Partition -- 2.6. Adsorption and Adsorption Chromatography -- Chapter 3. The Determination of the Physical Properties of Organic Compounds -- 3.1. Melting Point -- 3.2. Boiling Point -- 3.3. Density -- 3.4. Refractometry -- 3.5. Polarimetry -- 3.6. Absorption Spectroscopy -- Chapter 4. Storage of Chemicals, Destruction of Dangerous Wastes*) -- 4.1. Storage of Chemicals -- 4.2. Wastes and their Destruction -- Chapter 5. Basic Equipment -- Chapter 6. Literature References -- Handling chemicals -- safety†) -- Working with small amounts of substance -- Distillation and rectification -- Partition -- Chromatography -- Paper chromatography -- Thin-layer chromatography -- Gas chromatography -- Spectroscopy in the visible and UV region -- IR spectroscopy -- NMR spectroscopy -- PART B: THE LITERATURE OF ORGANIC CHEMISTRY -- REPORT WRITING -- Chapter 1. Reference Literature -- Chapter 2. Periodical Literature -- Chapter 3. Patent Literature -- Chapter 4. Handbooks, Collections of Methods, Progress Reports. , Chapter 5. Books of Tables -- Chapter 6. Textbooks -- Textbooks of Organic Chemistry -- Textbooks of Theoretical Organic Chemistry -- Textbooks of Industrial Organic Chemistry -- Chapter 7. Report Writing -- Chapter 8. Literature Reference -- PART C: SOME GENERAL PRINCIPLES -- Chapter 1. Classification of Organic Chemical Reactions -- 1.1. According to the Reaction Path -- 1.2. According to the Nature of the Bond Rearrangement -- 1.3. According to the Number of Molecules Involved in the Rate-determining Steps of the Reactions -- Chapter 2. The Acid-Base Concept -- Chapter 3. The Time Factor in Organic Chemical Reactions -- 3.1. Successive Reactions -- 3.2. Competing Reactions -- Chapter 4. The Influence of Substituents on the Electron Density Distribution and on the Reactivity of Organic Molecules -- 4.1. The Distribution of the Electron Density in Organic Molecules -- 4.2. The Influence of Substituents on the Reactivity of Organic Compounds. The Hammett Equation -- Chapter 5. Literature References -- Chapter 6. Abbreviations -- PART D: ORGANIC PREPARATIVE SECTION -- On the Use of Experimental Details and Tables -- Chapter 1. Radical Substitution -- 1.1. Production and Stability of Radicals -- 1.2. Reactions of Free Radicals. Radical Chain Reactions -- 1.3. Reactivity and Selectivity in Radical Substitutions -- 1.4. Detection of Radicals and Indications of Radical Reactions -- 1.5. Radical Halogenations -- 1.6. Oxidations with Molecular Oxygen -- 1.7. Other Radical Substitution Reactions -- 1.8. Literature References -- Chapter 2. Nucleophilic Substitution on a Saturated Carbon Atom -- 2.1. General Course and Molecularity of the Reaction -- 2.2. Factors Affecting the Course of NucleophiHc Substitution Reactions -- 2.3. Relationship between Type of Substitution and Substitution Productsf) -- 2.4. Nucleophilic Substitution in Alcohols and Ethers. , 2.5. Nucleophilic Substitution in Alkyl Halides and Sulphates and Alkanesulphonates -- 2.6. Literature References -- Chapter 3. Elimination with the Formation of Multiple C-C Bonds -- 3.1. Ionic Eliminations -- 3.2. Thermal cis-Eliminations -- 3.3 Literature References -- Chapter 4. Additions to Non-activated Multiple C-C Bonds -- 4.1. Electrophilic Addition to Alkenes and Alkynes -- 4.2. Nucleophilic Addition -- 4.3. Radical Addition -- 4.4. A Catalytic Hydrogenation -- 4.5. Literature References -- Chapter 5. Electrophilìc and Nucleophilic Substitution in Aromatics -- 5.1. Electrophilic Aromatic Substitution -- 5.2. Nucleophilic Aromatic Substitution -- 5.3. Literature References -- Chapter 6. Oxidation and Dehydrogenation -- 6.1. General Features -- 6.2. Oxidation of Methyl and Méthylène Groups -- 6.3. Oxidation of Primary and Secondary Alcohols and Aldehydes -- 6.4. Quinones by Oxidation -- 6.5. Oxidations with C-C cleavage -- 6.6. Dehydrogenation of Hydrocarbons and Hydroaromatics -- 6.7. Literature References -- Chapter 7. Reactions of Carbonyl Compounds -- 7.1. Reactions of Carbonyl Compounds with Bases -- 7.2. Reactions of Carbonyl Compounds with C- H Acidic Compounds -- 7.3. Reactions of Carbonyl Compounds with Cryptobases -- 7.4. Reactions of Vinylogous Carbonyl Compounds -- 7.5. Literature References -- Chapter 8. Reactions of other Hetero-analogous Carbonyl Compounds -- 8.1. Reduction of Nitro Compounds and Nitroso Compounds -- 8.2. Reactions of Nitrous Acid -- 8.3. Reactions of the Diazonium Salts -- 8.4. Some Reactions of Aliphatic Diazo Compounds -- 8.5. Reactions of Sulphonic Acid Derivatives -- 8.6. Literature References -- Chapter 9. Rearrangements -- 9.1. Nucleophilic 1,2-Rearrangements -- 9.2. Aromatic Rearrangements -- 9.3. Literature References -- PART E: THE IDENTIFICATION OF ORGANIC SUBSTANCES. , Chapter 1. Preliminary Tests and Detection of Functional Groups -- 1.1. Preliminary Tests -- 1.2. Testing for Functional Groups -- Chapter 2. Preparation of Derivatives -- 2.1. Ethers -- 2.2. Aldehydes and Ketones -- 2.3. Alcohols -- 2.4. Amines -- 2.5. Amino-acids -- 2.6. Carboxylic Acids -- 2.7. Amides and Nitriles -- 2.8. Carboxylic Acid Esters -- 2.9. Halogenohydrocarbons -- 2.10. Hydrocarbons -- 2.11. Nitro and Nitroso Compounds -- 2.12. Thiols and Thiophenols -- 2.13. Phenols -- 2.14. Sulphonic Acids -- Chapter 3. Separation of Mixtures -- Chapter 4. Problems for Practice -- Chapter 5. Literature References -- Chapter 6. Tables for the Characterization of Organic Compounds -- Alcohols -- Aldehydes -- Amines (primary and secondary) -- Amines (tertiary) -- Amino-acids -- Carbohydrates -- Carboxylic Adds -- Hal ides (aliphatic) -- Halides (aromatic) -- Hal ides (polyhalides) -- Hydrocarbons (aliphatic and cycloaliphatic) -- Hydrocarbons (alkenes and alkynes) -- Hydrocarbons (aromatic) -- Ketones -- Phenols -- Quinones -- Sulphonic Acids -- Thiols and Thiophenols -- PART F: PROPERTIES, PURIFICATION, AND PREPARATION OF IMPORTANT REAGENTS, SOLVENTS, AND AUXILIARIES (REAGENT APPENDIX)†) -- Literature References -- PART G: THE TOXICITY OF IMPORTANT CHEMICALS†) -- Review of the Toxicity of Important Laboratory Chemicals -- APPENDIX TO ORGANICUM -- Review of Common Methods for the Preparation of Important Classes of Compounds (Methods Index) -- Index.
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  • 2
    ISSN: 1572-882X
    Keywords: cellulose dissolution ; dissolution mechanism ; morphology ; electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The influence of different solvents on the morphology of cellulose during the dissolution process was studied. Spruce sulfite pulp, cotton linters and hydrolysed cotton linters were treated for a short time with lithium chloride: N,N-dimethylacetamide (LiCl:DMAc) and an alkaline solution of iron sodium tartrate (EWNN), respectively. The changes occurring at the fibre surfaces and within the cell walls were observed by scanning as well as by transmission electron microscopy. The cellulose fibres show significant differences in the dissolution behaviour when comparing the reaction of the two solvents. Using LiCl:DMAc, the cotton linters fibres become lamellar separated and within the spruce sulfite pulp fibres solvent channels appear in the first step with the fibrils becoming separated. In contrast, EWNN has a swelling effect on the surface of the cellulose fibres. Both solvent systems predominantly affect the ends of the fibres and places where the wall structure has been damaged.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: In continuation of a preceding study, the course of the reaction between methyl methacrylate (2) and methyl 2-sodioisobutyrate (1) was investigated, applying reaction times between 0,02 and 1,4 s, as a function of the following conditions: character of the solvent, effect of the addition of sodium tert-butoxide, mole ratio 2/1, concentration of the reactants, and temperature. Under all conditions used, the reaction between 2 and 1 was very fast and gave rise, along with other compounds, to a mixture of oligomers of 2 with the average molecular weight obeying the ratio [2]:[1]eff.. The balance of products showed that in some cases only a part of 1 has reacted with 2, giving rise to the expected oligomers. The efficiency of 1 varied in the range from 24 to 100%, being mainly dependent on the character of the solvent (efficiency in THF 〉 in toluene). Moreover, it was higher in the presence of sodium tert-butoxide and with a higher 2/1 mole ratio. In experiments with a low efficiency of 1 a certain part of it remained unreacted, in spite of the presence of 2, for reasons not yet clear. The resulting oligomers undergo consecutive reactions. Starting with the trimer 3b, cyclizing selfcondensation was the most important of the consecutive reactions and could be easily investigated in the case of the trimer. The rate of this cyclization was much higher in THF than in other solvents used, and it was, therefore, difficult to obtain the linear trimer at room temperature. On the contrary, the addition of sodium tert-butoxide or lowering the temperature suppressed the cyclization, which was especially easy to perceive in THF. Using the experience described in the study, it is possible to choose such conditions of the reaction between 1 and 2, under which the required oligomers are formed in good yield.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 191 (1990), S. 3033-3044 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The free-radical copolymerization of donor, acceptor and neutral monomers to ternary copolymers is studied. It is shown that the composition of the ternary copolymers can be calculated from their monomer feed, in case the reactivity ratio (r) values of the three binary subsystems are known. The calculation based on the copolymer equation only considers really existing propagation steps.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The miscibility of poly(2,6-dimethylphenylene oxide) (PPO) with polystyrene-block-poly(2,2-dimethyltrimethylene carbonate) (PS-block-PDTC) was studied and compared with the corresponding PPO/PS blends. PPO/PS-block-PDTC blends show two thermal transitions in the temperature range investigated; that is the melting of the DTC block and the glass transition of the mixed PPO/PS block phase. The Tg values obtained are discussed by means of the Fox and Gordon-Taylor equation. The influence of the PDTC block leads to higher Tg values of the PPO/PS block mixture than of the corresponding homopolymer blend.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 193 (1992), S. 2561-2569 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The synthesis of polyamide 3 (PA 3) by hydrogen transfer polymerization is described. The reaction proceeds homogeneously in N,N-dimethylacetamide/LiCl in contrast to the heterogeneous reaction in 1,4-dioxane and pyridine. By IR, NMR, differential scanning calorimetry and extraction experiments it was shown that the reaction product is nearly pure PA 3.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The influence of the solvent on the reactivity ratios in free-radical copolymerization of donor monomers with acceptor monomers is very strong. The copolymerization reactivity ratios decrease with increasing donor number and dielectric constant of the solvent. This can be rationalized on the basis of the complex stability constant of the two monomers as compared with those of the monomers and the solvent.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The Miscibility in blends of poly(2,6-dimethylphenylene oxide)Systematic IUPAC name: poly[oxy(2,6-dimethyl-1,4-phenylene)]. (PPO) with random or block copolymers of styrene and methyl methacrylate (MMA) was studied by light microscopy and glass transition temperature measurements. Blends of PPO and the random copolymers were found to be miscible up to a copolymer content of 18 wt.-% MMA. The transition from miscibility to immiscibility in these blends in independent of temperature in the range 100 to 350°C. From these data, the segmental interaction parameter between units of the homopolymer and MMA, χPPO/PMMA is estimated to be about 0,5. Blends of PPO and the block copolymers of styrene and MMA used behave essentially as the corresponding homopolymers in terms of miscibility.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 27 (1965), S. 82-90 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Beziehungen zwischen den physikalisch-chemischen Eigenschaften (Oberflächenpannung, Mizellbildungskonzentration) der wäßrigen Lösungen von (1-7)-Phenyl-n-tetradecan-p-sulfonaten, von (2-7)-Benzyl-n-tridecan-p-sulfonaten und von p-Di-n-alkyl-benzolsulfonaten mit insgesamt 14 C-Atomen in den Seitenketten und der Struktur dieser-Verbindungen werden aufgezeigt und die Resultate mit Literaturangaben verglichen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird über die Herstellung von Alkylbenzolen mit insgesamt 14 C-Atomen in den Seitenketten berichtet. Sie umfassen 3 Gruppen, nämlich die (1-7)-Phenyl-n-tetradecane, (2-7)-Benzyl-n-tridecane und die theoretisch möglichen p-Di-n-alkylbenzole.Die (2-7)-Phenyltetradecane wurden durch Umsetzung des jeweils passenden n-Alkyl-phenylketons mit der entsprechenden Grignard-Verbindung zum Carbinol, Dehydratisierung dieses mit Phosphorsäure und katalytische Hydrierung des dabei entstehenden Gemisches bindungsisomerer Olefine hergestellt. Das 1-Phenyltetradecan ließ sich sowohl durch Reduktion des n-Tridecyl-phenylketons nach dem Verfahren von Huang-Minlon als auch durch Wurtz-Fittig-Synthese gewinnen.Die (2-7)-Benzyltridecane waren aus den entsprechenden ωω-Dialkylacetophenonen durch katalytische Hydrierung zu den Carbinolen, Wasserabspaltung und erneute Hydrierung zugänglich. Für die Herstellung der Dialkylacetophenone wurden zwei unabhängige Synthesewege beschritten.Die p-Di-n-alkylbenzole konnten durch Reduktion der verschiedenen n-Alkyl-(p-n-alkylphenyl)-ketone nach Huang-Minlon und diese Ketone durch Friedel-Crafts-Acylierung der n-Alkylbenzole mit dem entsprechenden Säurechlorid hergestellt werden.
    Additional Material: 13 Tab.
    Type of Medium: Electronic Resource
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