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  • Organic Chemistry  (5)
  • biological control
  • General Chemistry
  • 1975-1979  (5)
  • 1976  (5)
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  • 1975-1979  (5)
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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 318 (1976), S. 607-612 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Derivatives of o-Phenylene Phosphate. XII. Reaction of Ortho-acid Chlorides with Ethylene OxideOrtho-acid chlorides react with ethylene oxide in dependence of their structure either to ortho-acid β-chloroethylester or by splitting off 1,2-dichloroethane to the corresponding carbonyl- and phosphoryl derivatives, respectively. Using this method i. a. pentacovalent P-derivatives (pentaoxyphosphoranes 14, 16) are available.
    Notes: Orthosäurechloride reagieren mit Äthylenoxid je nach Struktur entweder zu Orthosäure-β-chloräthylester oder unter Abspaltung von 1,2-Dichloräthan zu den entsprechenden Carbonyl-bzw. Phosphorylderivaten. Auf diesem Weg sind unter anderem pentacovalente P-Verbindungen (Pentaoxyphosphorane 14, 16) zugänglich.
    Additional Material: 1 Tab.
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 318 (1976), S. 116-126 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: α-Substituted Phosphonates. XIX. Derivatives of Aminomethane-bis-phosphonic AcidAminomethane-bis-phosphonic acid tetraethylesters have been prepared by various methods. Chlorination and hydrolysis of these compounds have been studied in detail.
    Notes: Aminomethan-bis-phosphonsäure-tetraäthylester wurden nach verschiedenen Verfahren synthetisiert. Die Chlorierung und die Hydrolyse dieser Verbindungen wurden eingehend untersucht.
    Additional Material: 3 Tab.
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 318 (1976), S. 157-160 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: α-Aminoacids and Derivatives. VIII. A Simple Synthesis of PhosphinothricinA simple and economical synthesis of D,L-phosphinothricin 2 - the active part of an antibiotical effective heterotripeptide which was isolated from Streptomyces viridochromogenes - is described.
    Notes: Es wird eine einfache und ökonomische Synthese von D, L-Phosphinothricin 2, dem wirksamen Bestandteil eines aus Streptomyces viridochromogenes isolierten antibiotisch wirksamen Heterotripeptids beschrieben.
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 318 (1976), S. 403-408 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: α-Substituted Phosphonates. XXI. On the Formation of Hydroxyaryl-substituted Methane-bis-phosphonic Acid Tetraestersα-Amino-α-(4-hydroxy-3,5-di-tert.-butyl-phenyl)-methanephosphonic acid diethylester 1 can be converted by different methods to (4-hydroxy-3,5-di-tert.-butyl-phenyl)-bis-phosphonic acid tetraethylesters 2. Course and intermediates of these smoothly proceeding reactions are investigated.
    Notes: α-Amino-α-(4-hydroxy-3,5-di-tert.-butyl-phenyl) - methanphosphonsäurediäthylester 1 lassen sich auf verschiedenen Wegen in (4-Hydroxy- 3,5-di-tert.-butyl-phenyl)-methan-bisphosphonsäuretetraäthylester 2 überführen. Ablauf und Intermediärprodukte dieser z. T. auffallend glatt verlaufenden Reaktion werden untersucht.
    Additional Material: 1 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 318 (1976), S. 272-278 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: α-Substituted Phosphonates. XX. Investigations on the C - N-Rearrangement of Aminomethane Bis- and Tris-phosphoryl CompoundsAttempts to prepare aminomethane-bis-phosphoryl-compounds of the types 5, 9 and 13, i.e. with a NH-function on the methin-carbon-atom, yielded independently of the synthetic path in all cases by C-N-rearrangement of a phosphoryl-group the N-phosphorylated aminomethane-phosphonic acid esters 6, 10/11 and 14. The course of this rearrangement has been studied on characteristic examples.
    Notes: Versuche zur Darstellung von Aminomethan-bis-phosphorylverbindungen des Typs 5, 9 bzw. 13, also mit einer NH-Funktion am Methin-Kohlenstoffatom führen unabhängig vom Syntheseweg stets unter C-N-Wanderung eines Phosphorylrestes zu N-phosphorylierten Aminomethanphosphonsäureestern 6, 10/11 bzw. 14. Der Ablauf dieser Umlagerung wird an charakteristischen Beispielen untersucht.
    Additional Material: 1 Tab.
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