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  • 11
    Electronic Resource
    Electronic Resource
    1,3-Bis[(di)alkylamino]-pentamethyldisilazane (1969)
    Springer
    Monatshefte für Chemie 100 (1969), S. 1910-1915 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract 1,3-Bis(alkylamino)pentamethyldisilazanes, which are important for the synthesis of special cyclotrisilazanes from different building units, could be prepared by reaction of 1,3-dichloropentamethyldisilazanes with alkylamines (equ. 5), or by transamination of 1,3-bis(methylamino)pentamethyldisilazane, which is easily obtained from dimethyldichlorosilane and methylamine, with higher primary amines (equ. 3). The properties of the compounds II–XI, prepared for the first time, may be taken from Table 1.
    Notes: Zusammenfassung Die für gezielte Synthesen von Cyclosilazanen wichtigen 1,3-Bis(alkylamino)-pentamethyldisilazane konnten a) durch Umsetzung von 1,3-Dichlorpentamethyldisilazanen mit Alkylaminen (Rk. 5) oder b) durch Umaminierung des aus Dimethyldichlorsilan und Methylamin leicht zugänglichen 1,3-Bis(methylamino)-pentamethyldisilazans mit höheren primären Aminen (Rk. 3) erhalten werden. Die Eigenschaften der erstmalig dargestellten Verbindungen II–XI sind aus Tab. 1 zu entnehmen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01151740
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  • 12
    Electronic Resource
    Electronic Resource
    Disilatetraza-spiro[3.4]octane und Disilahexaza-dispiro[4.1.4.1]dodecane Beiträge zur Chemie der Silicium-Stickstoff-Verbindungen, 149. Mitt. (1978)
    Springer
    Monatshefte für Chemie 109 (1978), S. 1267-1275 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Synthesis of the spirane systemsB andC (scheme 1) was achieved for the first time, starting with bis(alkylamino)substituted 1,3-diaza-2-sila-cyclopentanesA, via reactions 1–3. Properties, analytical and structural data of the new compoundsA 1–5, B 1–5 andC 2 are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00906038
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  • 13
    Electronic Resource
    Electronic Resource
    1.3-Dihalogendisilazane (1971)
    Springer
    Monatshefte für Chemie 102 (1971), S. 1806-1816 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung 1.3-Dihalogendisilazane wurden durch Umsetzung von Cyclo_und Polysilazanen mit Halogenwassertoffen (Rkk. 2,7) oder mit Dichlorsilanen (Rkk. 5, 9) erhalten und in den Verbin-dungen I–IX charakterisiert (Tab. 1). Thre vielseitigen Reaktionen lassen sich in Schema 1 überblicken.
    Notes: Abstract We obtained 1.3-dihalogenodisilazanes by reaction of cycloor polysilazanes with hydrogen halogenides (equ. 2, 7) or with dichlorosilanes (equ. 5, 9). They are characterized in the compounds I–IX (Table 1). A survey on their versatile reactions is given in scheme 1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00905655
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  • 14
    Electronic Resource
    Electronic Resource
    Substituierte N,N′-Bis(silyl)-cyclodisilazane (1971)
    Springer
    Monatshefte für Chemie 102 (1971), S. 1825-1833 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Spaltung von Cyclotri- und-tetrasilazanen mit Halogenwasserstoff oder mit Dimethyldihalogensilan (Schema 1, Rkk. 7 und 8) und die intermolekulare Kondensation von 1.3-Dihalogentetramethyldisilazanen durch Pyrolyse bzw. mit Triäthylamin oder auch mit Cyclosilazanen (Rkk. 11, 12) führt zu den N,N′-Bis(dimethylhalogensilyl)-tetramethyl-cyclodisilazanen (I–III). Diese können über die Rkk. 13, 14–20 (Schema 2) und 21 in zahlreiche Derivate (IV–XIII) übergeführt werden.
    Notes: Abstract Cleavage of cyclotri- and-tetrasilazanes with hydrogen halides or with dimethyldihalogenosilanes (scheme 1; equ. 7 and 8) and the intermolecular condensation of 1.3-dihalogenotetramethyldisilazanes by pyrolysis, in the presence of triethylamine, or with cyclosilazanes (equ. 11, 12), lead to the N.N′-bis-(dimethylhalogenosilyl)-tetramethylcyclodisilazanes (I–III), which can be transformed via equ. 13, 14, 20 (scheme 2) and 21 into numerous derivatives (IV–XIII).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00905657
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  • 15
    Electronic Resource
    Electronic Resource
    Sila-Analoga des Chlorphenoxamins und des Clofenetamins (1976)
    Springer
    Monatshefte für Chemie 107 (1976), S. 111-123 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Sila-analoguesA 2 andB 2 of two drugs from the benzhydryl ether class, chlorphenoxamine and clofenetamine, were synthesized for the first time by the steps shown in scheme 1. They and their precursors I–VI were characterized by their physical (Table 1) and chemical properties and their structures confirmed by n.m.r., mass and infrared spectrocopy (Tables 2–5). Their physiological effects were investigated and compared with those of the carbon analogues (Chapter 5).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00909088
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  • 16
    Electronic Resource
    Electronic Resource
    Sila-Analoga des Mebrophenhydramins (1976)
    Springer
    Monatshefte für Chemie 107 (1976), S. 439-447 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Sila-analoguesA 2,B 2 andC 2 of the drug mebrophenhydramine from the class of benzhydryl ethers were synthesized for the first time by the steps shown in scheme 1, and they and their precursors I–III were characterized by their physical (Table 1) and chemical properties, and their structures confirmed by NMR, mass and infrared spectroscopy (Tables 3–5). The histaminolytic and anticholinergic effects ofA 2 andC 2 were investigated and compared with some structure-activity relationships of analogue carbon compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00906873
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  • 17
    Electronic Resource
    Electronic Resource
    Zur Darstellung unsymmetrisch substituierter Bis(organylamino) silane (1979)
    Springer
    Monatshefte für Chemie 110 (1979), S. 1077-1088 
    Details
    ISSN: 1434-4475
    Keywords: Diphenyl-chloro-organylamino-silanes ; Silanes asymmetrically substituted bis(organylamino) ; Thermal rearrangement silanes]
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The title compoundsR 2Si(NHR 1) (NHR 2) (B) were prepared according to Equ. (2) and (3) and via formerly unknown diphenyl-chloro-organylaminosilanes (A) as intermediates. The complex course of formation ofB in competition withR 2Si (NHR 1)2 (C) andR 2Si(NHR 2)2 (D) (Scheme 1, Equ. (4)–(7), Table 2) was investigated in detail. Results of thermal rearrangement ofB are given in Table 5. Five novelA and six novelB compounds are confirmed by properties, elemental and structural data (Tables 1, 3 and 4).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00910955
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  • 18
    Electronic Resource
    Electronic Resource
    Neue anorganische Ringsysteme (1985)
    Springer
    Monatshefte für Chemie 116 (1985), S. 557-568 
    Details
    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
    URL: http://dx.doi.org/10.1007/BF00798780
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  • 19
    Electronic Resource
    Electronic Resource
    Sila-Riechstoffe und Riechstoffe-Isostere, 10. Mitt. Ein neuer Weg zu Sila-β-Jonon (1985)
    Springer
    Monatshefte für Chemie 116 (1985), S. 693-700 
    Details
    ISSN: 1434-4475
    Keywords: Sila-perfumes ; Silacyclohexanon-2 ; Sila-β-ionone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Preparation of sila-β-ionone (14) was possible by a novel route with yields nearly 5 times higher than before1, with the formerly unknown 1,1,3-trimethyl-1-silacyclohexanone-2 (6) as a key substance. The nine reaction steps may be seen from Scheme 1. 2-Ethinyl-1,1,3-trimethyl-1-silacyclohexan-2-ol (7) could not be dehydrated to give the analogous silacyclohexene derivative9. But dehydration was successful in the case of 2-(1-butin-3-ol) substituents; here only the ring but not the chain hydroxyl group was eliminated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00809147
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  • 20
    Electronic Resource
    Electronic Resource
    Sila-Riechstoffe und Riechstoff-Isostere VII: Reaktionen und Derivate der Benzyldialkylphosphinimide (1985)
    Springer
    Monatshefte für Chemie 116 (1985), S. 7-18 
    Details
    ISSN: 1434-4475
    Keywords: Sila-Perfumes ; Isosteric compounds ; Theory of smell ; Phosphinimides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Zusammenfassung Derivatives of benzyldialkylphosphinimides C6H5CH2-PRR′=NH (C) with =NCH3, =NSiMe 3, =O, =S, −CS 2 ⊖ and −NH2]NCS⊖ instead of =NH groups (compare Scheme 1) were prepared and characterized. They neither show the H/D exchange of CH2 benzyl protons with CDCl3 nor the thermal formation of stilbene on heating like the parent compounds C, but they give in the case of =NCH3 and =NSiMe 3 analogously aHorner-Wittig reaction with aldehydes. CS2 reacts with C under NH/S-exchange. The quality of smell ofPhCH2-PRR′ =NCH3 (none, later fishy) is quite different from that of isostericPhCH2-SiRR′ −OCH3 (flowery-honeylike/minty) and the smell of C (metallic/chlorinated hydrocarbon-like) from that ofGrimm hydride isostersPhCH2−PRR′=O (weak; flowery-waxy). The theory ofAmoore (size and shape of molecules control their smell qualities) must be called in question.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00798274
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