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  • 1
    ISSN: 1434-4475
    Keywords: Disiloxanes ; Organylaminosilanes ; Alkanolysis ; Mass spectra interpretation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Reaction of hexachlorodisiloxane with primary and secondary amines leads — in dependence of stoichiometry — to numerous partially and totally organylamino substituted disiloxanes. Partially aminosubstituted chlorodisiloxanes are very sensitive to moisture and can be converted into disiloxanes with different organylamino groups. Exhaustive alkanolysis substitutes amino as well as chloro groups giving hexaalkoxydisiloxanes, but partial alkanolysis may substitute amino in preference to chloro groups. Mass spectra can be interpreted by abstraction ofRR′N·,RR′N+,RR′NH and (RR′N minus H) units. Most of the compounds are colourless liquids but hexakis(piperidino)-disiloxane melts at 270 °C.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 116 (1985), S. 557-568 
    ISSN: 1434-4475
    Keywords: Silicon-nitrogen compounds ; Cyclohexasilatriazane ; Cyclotetrasiladiazane derivatives
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The formerly unknown Si-dodecamethyl-cyclo-hexasila-3,6,9-triazane (-Sime 2Sime 2NH-)3 (4) was detected in low yield (3–5%) among the reaction products of dichlorotetramethyldisilane and ammonia. The already known main product (50%) Si-octamethyl-cyclo-tetrasila-3,6-diazane (-Sime 2Sime 2NH-)2 (3) reacted after metallation with chloromethylsilanesme n SiCl4−n (n=0−3) to give theN,N′-disubstituted cyclotetrasiladiazanes11–14, from which12 was transformed with ammonia to the correspondingN,N′-bis(aminodimethylsilyl) derivative15, and13 with metallated methylamine to the correspondingN,N′-bis[bis(dimethylamino)methylsily]derivative16. Attempts to construct novel SiN frameworks (g) or (k)-(m) failed.
    Type of Medium: Electronic Resource
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