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  • 1965-1969  (5)
  • 1
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Biochemistry 7 (1968), S. 3662-3667 
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 99 (1968), S. 1695-1704 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract 1-Phenyl-2,2,6,6-tetramethylphosphorinan-4-one (1) reacts with sulfur and oxygen to the corresponding P-sulfide and until now unknown P-oxide respectively. Although both the compounds react as a ketone, the simultaneous reaction with sulfur and ammonia will not give the corresponding Δ3-thiazolines. Δ3-thiazolines are formed on treating the bis-[1-phenyl-2,2,6,6-tetramethyl-1-oxo-phosphorinan-4-one-3-yl]-disulfide with H2S, NH3 and an oxo compound. An improved method for the synthesis of1, new derivatives of1, the P-sulfide and of the P-oxygen compound are described.
    Notes: Zusammenfassung 1-Phenyl-2,2,6,6-tetramethylphosphorinan-4-on (1) reagiert mit Schwefel bzw. Sauerstoff zum entsprechenden P-Sulfid bzw. bisher unbekannten P-Oxid. Obwohl beide Verbindungen Ketoncharakter aufweisen, reagieren sie mit Schwefel und NH3 nicht zu Δ3-Thiazolinen. Die Δ3-Thiazolinen-Synthese gelingt aber durch Umsetzung des Bis-(1-phenyl-2,2,6,6-tetramethyl-1-oxo-phosphorinan-4-on-3-yl)-disulfids mit einer Oxokomponente, H2S und NH3. Es wird eine verbesserte Methode zur Darstellung von1 angegeben. Neue Derivate von1 sowie des P-Sulfids bzw. P-Oxids von1 werden beschrieben.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 99 (1968), S. 1436-1451 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract 2,2,6,6-Tetramethyl-(4)-piperidone (Triacetonamine), of which an improved method of syntheses is described, reacts with sulfur and ammonia to give the corresponding 5,5,7,7-tetramethylpiperidino[5,4—c]-Δ3-thiazoline-2-spiro-4′-(2′,2′,6′,6′-tetramethyl)-piperidine (2). The reaction of2 with methyl iodide will give the N-mono-,-di- or-tetramethylated Δ3-thiazoline in function of the reaction conditions. The hydrolyses of2 in diluted hydrochloric acid will give the stable 3-mercaptotriacetonamine-hydrochloride, the free base of which will rapidly desulfurize to the triacetonamine. Oxidation of the 3-mercapto compound leads to the corresponding disulfide. 3-Mercaptotriacetonamine reacts with ketones or aldehydes in the presence of ammonia to the various in the 2-position different substituted Δ3-thiazolines. Δ3-Thiazolines thus formed with aldehydes may be dehydrogenated to the corresponding thiazoles.
    Notes: Zusammenfassung 2,2,6,6-Tetramethylpiperidon-(4) (Triacetonamin), für dessen Herstellung ein verbessertes Verfahren beschrieben wird, reagiert mit Schwefel und NH3 glatt zum entsprechenden 5,5,7,7-Tetramethylpiperidino-[5,4—c]-Δ3-thiazolin-2-spiro-4′-(2′,2′,6′,6′-tetramethyl)-piperidin (2).2 reagiert mit CH3J je nach den angewandten Reaktionsbedingungen wahlweise zum N-mono-,-dioder-permethylierten Δ3-Thiazolin. Durch Hydrolyse von2 in verd. HCl entsteht fast quantitativ das stabile 3-Mercaptotriacetonaminhydrochlorid; die freie Base kann rasch zu Triacetonamin entschwefelt oder oxydativ in das entsprechende Disulfid übergeführt werden. 3-Mercaptotriacetonamin reagiert mit Ketonen oder Aldehyden in Gegenwart von Ammoniak zu in 2-Stellung unterschiedlich substituierten Δ3-Thiazolin, von denen die mit Aldehyden erhaltenen Thiazoline zu Thiazolen dehydriert werden können.
    Type of Medium: Electronic Resource
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