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  • Ethylenediamine, N,N,N′-trimethyl-  (2)
  • (N-(N′,N′,N″,N″-tetramethyl)guanidinyl)substituted Phosphoryl compounds  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Verbindungen mit dem 1,3,5,2-Triazaphosphorinan-Grundgerüst: Synthese und Koordinationschemie neuartiger, N,N,N′-Trimethylethylendiamin-substituierter Verbindungen mit drei-und vierfach koordiniertem Phosphor (1993)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 126 (1993), S. 1265-1270 
    Details
    ISSN: 0009-2940
    Keywords: 1,3,5-Trimethylbiuret ; Ethylenediamine, N,N,N′-trimethyl- ; Iron complexes ; Chromium complexes ; Molybdenum complexes ; 1,3,5,2-Triazaphosphorinanes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Compounds with the 1,3,5,2-Triazaphosphorinane Skeleton: Synthesis and Coordination Chemistry of Novel N,N,N′-Trimethylethylenediamine-Substituted Compounds with Three-and Four-Coordinate PhosphorusSubstitution of chlorine for the N,N,N′-trimethylethylenediamine group in the 1,3,5-trimethylbiuret derivative 2 produced 4. The reaction of the 1,3,5,2-triazaphosphorinane 4 with sulfur furnished the expected P(=S) derivative 5. Reaction of 4 with methyl iodide led to the formation of the ammonium iodide 6 by methylation of the nitrogen atom of the terminal NMe2 group while the phosphorus atom of 4 remained unaffected. The structure of 6 was confirmed by a single-crystal X-ray structure analysis. In the unusual reaction of 4 with Br2 the bromodimethylammonium-bromophosphonium dibromide 7 was formed. The reaction of 4 with Fe2(CO)9 furnished the expected Fe(CO)4 complex 8 while with (C7H8)Cr(CO)4 (C7H8=norbornadiene) 9 was obtained. In 9, norbornadiene is replaced by one molecule of 4, which is coordinated by phosphorus and the nitrogen atom of the NMe2 group. In the reaction of 4 with C7H8Mo(CO)4 (C7H8=norbornadiene) the complexes 10a and 10b were formed. In 10a, the P(III) atom of 4 is coordinated to Mo; the second coordination site at Mo(CO)4 is occupied by the nitrogen atom of the terminal NMe2 group. In 10b, the nitrogen atoms of the PN(Me) and of the NMe2 grouping are coordinated to Mo, with formation of a five-membered ring.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19931260602
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  • 2
    Electronic Resource
    Electronic Resource
    2-{[2-(Dimethylamino)ethyl]methylamino}-1,3,2-benzodioxaphosphol als Ligand in Übergangsmetallkomplexen  -  Kristall- und Molekülstruktur eines Tetracarbonylchrom-Komplexes (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 301-307 
    Details
    ISSN: 0009-2940
    Keywords: Ethylenediamine, N,N,N′-trimethyl- ; Transition-metal complexes, P - N coordination ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 2-{[2-(Dimethylamino)ethyl]methylamino}-1,3,2-benzodioxaphosphole as a Ligand in Transition-Metal Complexes. Crystal and Molecular Structure of a Tetracarbonyl Chromium DerivativeComplexes of the zerovalent transition metals chromium, molybdenum, iron, and platinum react with the title phosphorus-(III)-compound 3 to give a range of different products: in the coordination compounds 4 and 5, 3 functions as a bidentate ligand, coordinating to the metal through the phosphorus and the nitrogen atom of the dimethylamino group. The structure of 4 was confirmed by a single-crystal X-ray analysis, showing a ligand “bite” angle of 91.0, 91.4° in two independent molecules. In the compounds 7 - 9, involving Mo, Fe, and Pt as a central atom, 3 coordinates solely through P(III). For the platinum(O) complex 9 31P-NMR spectroscopy revealed a dynamic behaviour at room temperature.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250205
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  • 3
    Electronic Resource
    Electronic Resource
    Synthese, Struktur und einige Reaktionen [N-(N′,N′,N″,N″-tetramethyl)-guanidinyl]-substituierter PhosphorylverbindungenProfessor Hans Jürgen Bestmann zum 70, Geburtstag gewidmet (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 348-354 
    Details
    ISSN: 0044-2313
    Keywords: N′,N′,N″,N″-Tetramethylguanidine ; (N-(N′,N′,N″,N″-tetramethyl)guanidinyl)substituted Phosphoryl compounds ; Phosphorylamides ; BF3 Adduct of Phosphorylamides ; X-Ray Crystal Structure Analysis ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, Structure, and some Reactions of N-(N′,N′,N″,N″-tetramethyl)guanidinyl-substituted Phosphoryl CompoundsThe tetramethylguanidinyl-substituted phosphoryl compounds 1-10 were prepared in the reaction of the appropriate chlorophosphoryl compounds with either N′,N′,N″,N″-tetramethylguanidine (HTMG) or N-trimethylsilyl-(N′,N′,N″,N″-tetramethyl)guanidine (TMSTMG). With methyl iodide 1 reacted with N-alkylation to give the ammonium salt 11. 1 reacted with BF3 · Et2O at both imino nitrogen atoms with formation of the bis-BF3-adduct 12. The X-ray structure determination of phenylphosphonic acid-bis(N′,N′,N″,N″-tetramethylguanidinide) 3 shows shortened PN-bonds and widened PNC-angles, consistent with the partial double bond character of the PN-bond.
    Notes: Die tetramethylguanidinylsubstituierten Phosphorylverbindungen 1-10 wurden durch Umsetzung der entsprechenden Phosphinsäure- und Phosphonsäure-Chloride mit N′,N′,N″,N″-Tetramethylguanidin (HTMG) oder N-Trimethylsilyl-N′,N′,N″,N″-tetramethylguanidin (TMSTMG) dargestellt. Mit Methyliodid reagierte 1 unter einfacher N-Alkylierung zur Ammoniumverbindung 11. Mit BF3 · Et2O reagierte 1 and beiden Iminostickstoffatomen unter Bildung des Bis-BF3-Adduktes 12. Das Phenylphosphonsäure-bis(N′,N′,N″,N″-tetramethyl-guanidinid) 3 wurde einer Einkristall-Röntgenstrukturanalyse unterzogen. Es wurden leicht verkürzte PN-Bindungen und aufgeweitete PNC-Winkel beobachtet. Dies deutet auf partiellen Doppelbindungscharakter der PN-Bindung hin.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966220224
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