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  • Chemistry  (3)
  • Organic Chemistry  (2)
  • 229; 277; 281; 282; 284; 289; 292; 332; 367; 375; 441; 444; Agassiz Trawl; AGT; Biomass as carbon, total per area; Community, oxygen consumption; DEPTH, sediment/rock; Elevation of event; Event label; Giant box corer; GKG; Global Environmental Change: The Northern North Atlantic; Latitude of event; Longitude of event; M17/1; M17/1_367; M17/1_375; M17/1_441; M17/1_444; M21/4; M21/4_229; M21/4_277; M21/4_281; M21/4_282; M21/4_284; M21/4_289; M21/4_292; M21/4_332; Meteor (1986); MSN; Multiple opening/closing net; Porifera, biodeposition rate as carbon; Porifera, biomass, ash free dry mass per area; Porifera, oxygen consumption; SFB313; Thenea muricata, biomass, ash free dry mass per area; Thenea muricata, oxygen consumption  (1)
Document type
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 103 (1970), S. 2794-2801 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions with Alkylidenetriphenylphosphoranes, XXVIII. New Syntheses of α-Branched β-Ketocarboxylic AcidsThe reaction between acyl chlorides 1 and (1-alkoxycarbonylalkylidene)triphenylphosphoranes 2 in a molar ratio of 1:1 gives rise to the formation of phosphonium chlorides 3. The electrolysis of these phosphonium salts leads to the formation of triphenylphosphine and α-branched β-ketocarboxylic acid esters 6. The reaction between 1 and 2 in a molar ratio of 1:2 produces allenic carboxylic acid esters 8, which react with piperidine (9) to form enamines 10. Acidic hydrolysis of the latter compounds also yields the β-ketoesters 6.
    Notes: Säurechloride 1 und [1-Alkoxycarbonyl-alkyliden]-triphenylphosphorane 2 reagieren im Molverhältnis 1:1 zu Phosphoniumsalzen 3, deren Elektrolyse neben Triphenylphosphin α-verzweigte β-Keto-carbonsäureester 6 ergibt. Setzt man die aus 1 und 2 im Molverhältnis 1:2 entstehenden 8 mit Piperidin (9) um, so erhält man Enamine 10, bei deren saurer Hydrolyse ebenfalls die Verbindungen 6 entstehen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 704 (1967), S. 109-114 
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Triphenylphosphin-benzylene 6 setzen sich mit Benzylhalogeniden 7 im Molverhältnis 1:1 zu Phosphoniumsalzen 8 um, die mit verdünnter Natronlauge oder bei der Elektrolyse ihrer wäßrig alkoholischen Lösung in Diaryläthane und Triphenylphosphinoxid bzw. Triphenylphosphin gespalten werden.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 706 (1967), S. 68-74 
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Triphenylphosphin-acyl-methylene 5 reagieren mit Bromessigsäuremethylester im Molverhältnis 2 : 1 unter C-Alkylierung und Umylidierung. Die entstehenden Triphenylphosphin-acyl-methoxycarbonylmethyl-methylene 8 werden in alkalischem Medium zu γ-Ketosäuren 10 verseift und lassen sich durch protonenkatalysierten Hofmann-Abbau in β-Acyl-acrylsäureester 14 überführen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 4
    Publication Date: 2024-02-02
    Keywords: 229; 277; 281; 282; 284; 289; 292; 332; 367; 375; 441; 444; Agassiz Trawl; AGT; Biomass as carbon, total per area; Community, oxygen consumption; DEPTH, sediment/rock; Elevation of event; Event label; Giant box corer; GKG; Global Environmental Change: The Northern North Atlantic; Latitude of event; Longitude of event; M17/1; M17/1_367; M17/1_375; M17/1_441; M17/1_444; M21/4; M21/4_229; M21/4_277; M21/4_281; M21/4_282; M21/4_284; M21/4_289; M21/4_292; M21/4_332; Meteor (1986); MSN; Multiple opening/closing net; Porifera, biodeposition rate as carbon; Porifera, biomass, ash free dry mass per area; Porifera, oxygen consumption; SFB313; Thenea muricata, biomass, ash free dry mass per area; Thenea muricata, oxygen consumption
    Type: Dataset
    Format: text/tab-separated-values, 68 data points
    Location Call Number Limitation Availability
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