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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 100 (1967), S. 3511-3519 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Spaltung der Zinn-Stickstoff-Bindung in Organozinn-dialkylamiden R4—nSn(NR′2)n [R = CH3, C2H5, n-C4H9; R′ = CH3, C2H5; n = 1,2] mit Stickstoffwasserstoff in wasserfreien Lösungsmitteln führt zu Organozinn-aziden R4—nSn(N3)n, deren Reaktionen, insbesondere mit Phosphinen PX3 (X = n-C4H9, C6H5, OCH3, N(CH3)2) mitgeteilt werden Die ersten Vertreter von N-Organozinn-phosphiniminen X3P=N—SnR3 werden beschrieben und die PMR-Spektren der erhaltenen Verbindungen diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Cyclopropenones with Ketene Acetals, III1) Thermal Rearrangement of the Labile 1:1-Adducts from Diphenylcyclopropenone and Diphenylcyclopropenethione with Ketene Acetals2, 3)Diphenylcyclopropenone (1) and diphenylcyclopropenethione (2) react with ketene acetals 3 and 7 at elevated temperature to give stable 1:1-adducts with the structure of cis-2,4-pentadienamides 6 and 8. 2-Azoniabicyclo[3.1.0]hex-3-en-3-olates, earlier described thermally unstable 1:1-adducts, are intermediates in these reactions. The structure of 6 has been proven by hydrolysis, ozonolysis, and hydrogenation. In two cases the cis-2,4-pentadienamides 6 isomerize to the trans-isomers 9.
    Notes: Bei höherer Temperatur setzen sich Diphenylcyclopropenon (1) und Diphenylcyclopropenthion (2) mit Ketenacetalen 3 bzw. 7 zu stabilen 1:1-Addukten um, denen die Konstitution von cis-2,4-Pentadienamiden 6 bzw. 8 zukommt. Die früher beschriebenen thermolabilen 1:1-Addukte (2-Azoniabicyclo[3.1.0]hex-3-en-3-olate bzw. -thiolate) sind Zwischenprodukte der Reaktion. Die Konstitution 6 wird durch Hydrolyse-, Ozonolyse- und Hydrierungsreaktionen bewiesen. In zwei Fällen unterliegen die cis-2,4-Pentadienamide 6 thermischen cis-trans-Isomerisierungen zu 9.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Cyclopropenones with ketene Acetals, II1) Formation of Labile 1:1-Adducts from Diphenylcyclopropenone and Diphenylcyclopropenethione with Ketene Acetals2-4The reaction of diphenylcyclopropenone (1) and diphenylcyclopropenethione (2) with ketene acetals at room temperature yields 2-azoniabicyclo[3.1.0.]hex-3-en-olates 5. The structure of 5f has been determined by X-ray diffraction techniques. Spectral data are in accord with the structure proposal 5. Compounds 5 can be protonated and alkylated; with nucleophiles opening of the 5-membered ring occurs.
    Notes: Die Reaktion von Diphenylcyclopropenon (1) und Diphenylcyclopropenthion (2) mit Ketenacetalen 3 bzw. 4 liefert bei Raumtemperatur 2-Azoniabicyclo[3.1.0]hex-3-en-3-olate 5. Die Struktur konnte für 5f durch Röntgenstrukturanalyse bewiesen werden. Die spektroskopischen Daten sind mit dem Konstitutionsvorschlag 5 im Einklang. Die Ammonium-acylide lassen sich protonieren und alkylieren; mit nucleophilen Reagentien erfolgt die Öffnung des Fünfrings in den Bicyclen 5.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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