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  • 1
    Electronic Resource
    Electronic Resource
    Reaktionen vonN-Sulfinylverbindungen mit dem 1,2,4-Trithia-3,5-diborolan-Ringsystem und Substitutionsreaktionen am 1,2,4-Trithia-3,5-diborolan und 1,2-Dithia-4-aza-3,5-diborolidin (1982)
    Springer
    Monatshefte für Chemie 113 (1982), S. 139-153 
    Details
    ISSN: 1434-4475
    Keywords: Boroxazines ; 1,2-Dithia-4-aza-3,5-diborolidines ; 1,4-Dithia-2-aza-3,5-diborolidines ; N-Sulfinylcompounds ; 1,2,4-Trithia-3,5-diborolane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reaction of trimethylsilyl- and pentafluorophenyl-N-sulfinylamine respectively with 3,5-dihalogeno-1,2,4-trithia-3,5-diborolanes yields the 1,2-dithia-4-aza-3,5-diborolidines1-3.Tert-butyl-N-sulfinylamine and 3,5-dimethyl-1,2,4-trithia-3,5-diborolane react analogous. OtherN-sulfinylamines however split the disulfane bridge in 3,5-dimethyl-1,2,4-trithia-3,5-diborolane and the 1,4-dithia-2-aza-3,5-diborolidines5A-7(A) are formed. Besides of boroxines, cyclo-2,4,6-trimethyl-1,3-dioxa-5-aza-2,4,6-triboranes and cyclo-2,4,6-trimethyl-1-oxa-3,5-diaza-2,4,6-triboranes are formed as byproducts,8–10 have been isolated. In 1,2,4-trithia-3,5-diborolanes and 1,2-dithia-4-aza-3,5-diborolidines the bromo-atoms can be substituted by alkyl (13, 14), by amino (15–20) and by isothiocyanato groups. The compounds were characterised analytically and spectroscopically (MS; NMR:1H,11B,19F,29Si; IR).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00799013
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  • 2
    Electronic Resource
    Electronic Resource
    Synthese und Charakterisierung von 1,3,2λ5,4-Thiazaphosphaboretidinen (1989)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 861-864 
    Details
    ISSN: 0009-2940
    Keywords: Aminoiminophosphanes ; 1,3,2λ5,4-Thiazaphosphaboretidines ; 1,2,4,3,5-Trithiadiborolanes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Characterization of 1, 3, 2λ5, 4-ThiazaphosphaboretidinesThe reaction of 1,2,4,3,5-trithiadiborolanes with silylated aminoiminophosphanes leads to the 1,3,2λ5,4-thiazaphosphaboretidines 1a-i. The formation of 1h, i is accompanied by an exchange of the substituents bonded to the N atoms. 1H-, 11B-, 13C-, 29Si-, 31P-NMR, and mass spectra are discussed.
    Notes: Die Umsetzung von 1,2,4,3,5-Trithiadiborolanen mit silylierten Aminoiminophosphanen führt zu den 1,3,2λ5,4-Thiazaphosphaboretidinen 1a-i. Die Bildung von 1h, i wird von einem Austausch der N-ständigen Substituenten begleitet. 1H-, 11B-, 13C-, 29Si-, 31P-NMR- und Massenspektren werden diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19891220511
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  • 3
    Electronic Resource
    Electronic Resource
    N,N′-Dilithiobis(alkylamino)phenylborane als Synthesebausteine für viergliedrige Metallacyclen (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 703-706 
    Details
    ISSN: 0009-2940
    Keywords: 4,4′-Spirobi(1,3-diaza-2-bora-4-metallacyclobutanes)/1,3-Diaza-2-bora-4-metallacyclobutanes/Metallaheterocycles with Ge, Sn, Ti, Zr ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: N,N′-Dilithiobis(alkylamino)phenylboranes as Starting Materials for Four-Membered MetallacyclesReactions of N,N′-Dilithiobis(alkylamino)phenylboranes with tetrachlorides MCl4 (M = Ge, Sn, Ti, Zr) produce the 4,4′-spirobi(1,3-dialkyl-2-phenyl-1,3-diaza-2-bora-4-metalla-cyclobutane) derivatives 1a, 1b, 2b, 3a, and 3b. With diorganylmetal dihalides R2MX2(M = Sn, Zr; X = Cl, Br), the 1,3-diaza-2-bora-4-metallacyclobutanes 2a and 4 are obtained. For 3a an X-ray structure analysis has been performed.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901230409
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  • 4
    Electronic Resource
    Electronic Resource
    Synthese und Charakterisierung neuer S- und Se-haltiger Borheterocyclen: 1,2,4,6,3,5-Thiatriazadiborinane, 1,4,2,6,3,5-Thiaselenadiazadiborinane und 1,2,3-Diselenaborole (1986)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 119 (1986), S. 9-17 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Characterization of Novel S- and Se-containing Boron Heterocycles: 1,2,4,6,3,5-Thiatriazadiborinanes, 1,4,2,6,3,5-Thiaselenadiazadiborinanes, and 1,2,3-Diselenaboroles3,5-Dimethyl-1,2,4,3,5-dithiazadiborolidines 1 react with sulfur diimides by replacement of the disulfane bridge and formation of 1,2,4,6,3,5-thiatriazadiborinanes (2a-c). A remarkable stable derivate of this heterocycle substituted by two N-tert-butylsulfur diimide groups (4) is formed by the reaction of 3,5-dibromo-4-phenyl-1,2,4,3,5-dithiazadiborolidine (3) with N-tert-butyl-N′-(trimethylsilyl)sulfur diimide. 1,2,4,3,5-Triselenadiborolane 5a reacts with sulfur diimides to give 1,4,2,6,3,5-thiaselenadiazadiborinanes (6a-c). 1,2,3-Diselenaboroles (7a-c) are formed by the reaction of 3,5-dialkyl-1,2,4,3,5-triselenadiborolanes 5a-c with 3-hexyne. The 1H, 11B, 13C, 29Si, 77Se NMR and mass spectra are discussed.
    Notes: 3,5-Dimethyl-1,2,4,3,5-dithiazdiborolidine 1 reagieren mit Schwefeldiimiden unter Ersatz der Disulfanbrücke zu 1,2,4,6,3,5-Thiatriazadiborinanen (2a-c). Ein bemerkenswert stabiles Derivat dieses Heterocyclus, substituiert mit zwei N-tert-Butylschwefeldiimid-Resten (4), erhält man durch Umsetzung von 3,5-Dibrom-4-phenyl-1,2,4,3,5-dithiazadiborolidin (3) mit N-tert-Butyl-N′-(trimethylsilyl)schwefeldiimid. 1,2,4,3,5-Triselenadiborolan 5a ergibt mit Schwefeldiimiden 1,4,2,6,3,5-Thiaselenadiazaborinane (6a-c). 1,2,3-Diselenaborole (7a-c) bilden sich bei der Umsetzung von 3,5-Dialkyl-1,2,4,3,5-triselenadiborolanen 5a-c mit 3-Hexin. Die 1H-, 11B-, 13C-, 29Si-, 77Se-NMR- und die Massenspektren werden diskutiert.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19861190103
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  • 5
    Electronic Resource
    Electronic Resource
    Synthese und Charakterisierung neuer mono- und bicyclischer BNS-Systeme (1986)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 119 (1986), S. 3121-3126 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Characterization of New Mono- and Bicyclic BNS SystemsS,S-Dialkyl-N,N′-bis(trimethylsilyl)sulfodiimides react with 1,2,4,3,5-trithiadiborolanes by splitting of the SiN bond to yield 1 λ6,4,2,6,3,5-dithiadiazadiborines 2. The ammonolysis of 2 leads to derivatives of 1 λ6,2,4,6,3,5-thiatriazadiborine 3, the hydrolysis to 1 λ6,4,2,6,3,5-thioxadiazadiborines 4. 2,6-Bis(chlorodimethylsilyl)-3,5-dimethyl-1,4,2,6,3,5-dithiadiazadiborinane (1a) forms mono- or bicyclic systems with primary amines. 1H, 11B, 13C, 29Si NMR and MS data are reported.
    Notes: S,S-Dialkyl-N,N′-bis(trimethylsilyl)sulfodiimide reagieren mit 1,2,4,3,5-Trithiadiborolanen unter SiN-Spaltung zu 1 λ6,4,2,6,3,5-Dithiadiazadiborinen 2. Deren Ammonolyse ergibt Derivate des 1 λ6,2,4,6,3,5-Thiatriazadiborins 3, die Hydrolyse führt zu 1 λ6,4,2,6,3,5-Thioxadiazadiborinen 4. 2,6-Bis(chlordimethylsilyl)-3,5-dimethyl-1,4,2,6,3,5-dithiadiazadiborinan (1a) bildet mit primären Aminen mono- oder bicyclische Systeme (5, 6). 1H-, 11B-, 13C-, 29Si-NMR-und MS-Daten werden mitgeteilt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19861191019
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  • 6
    Electronic Resource
    Electronic Resource
    Synthese und Eigenschaften von 1,2,4,3-Thiadiazaboretidinen. Kristallstruktur des 2,4-Di-tert-butyl-3-phenyl-1,2,4,3-thiadiazaboretidins (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 47-50 
    Details
    ISSN: 0009-2940
    Keywords: Sulfur diimides ; 1,3-Cycloaddition, reductive ; 1,2,4,3-Thiadiazaboretidines ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis and Properties of 1,2,4,3-Thiadiazaboretidines. Crystal Structure of 2,4-Di-tert-butyl-3-phenyl-1,2,4,3-thiadiazaboretidineReaction of sulfur diimides with alkyl(aryl)bis(methylthio)boranes leads to reductive 1,3-cycloaddition of the NSN sequence with formation of the 1,2,4,3-thiadiazaboretidines 2a-g. NMR (1H, 11B, 13C, 15N, 29Si), mass spectra and the results of the X-ray analysis of 21 are reported and discussed. The 11B chemical shifts have been calculated for 3-phenyl-1,2,4,3-thiadiazaboretidine and some related model compounds by the IGLO method and correlate acceptably with the experimental values.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911240108
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  • 7
    Electronic Resource
    Electronic Resource
    Synthese und Eigenschaften von 1-[Bis(trimethylsilyl)amino]-borirenen (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 2531-2537 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis and Properties of 1-[Bis(trimethylsilyl)amino]borirenesThe reaction of the 3-[bis(trimethylsilyl)amino]-1,2,3-dithiaboroles 1a - f with sodium leads to ring contraction with formation of the hitherto unknown 1-[bis(trimethylsilyl)amino]borirenes 2a - f. 1H, 11B, 13C, 29Si NMR spectra, IR and MS dates are reported.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170725
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  • 8
    Electronic Resource
    Electronic Resource
    Synthese und Charakterisierung von 1,3,2,4-Thiazadiboretidinen (1987)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 120 (1987), S. 999-1001 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of the 3,5-bis(diamino)-1,2,4,3,5-dithiazadiborolidines 1d-j with elemental sodium leads to ring contraction and formation of the 1,3,2,4-thiazadiboretidines 2d-j. NMR (1H, 11B, 13C) and MS data are reported.
    Notes: Die 3,5-Bis(diamino)-1,2,4,3,5-dithiazadiborolidine 1d-j reagieren mit metallischem Natrium unter Ringkontraktion zu den 1,3,2,4-Thiazadiboretidinen 2d-j. NMR (1H, 11B, 13C) und MS-Daten werden mitgeteilt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19871200619
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  • 9
    Electronic Resource
    Electronic Resource
    Synthese und Eigenschaften von 2,3-Dihydro-4H-1,3,2-selenazaborin-4-onen (1986)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 119 (1986), S. 1189-1195 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Properties of 2,3-Dihydro-4H-1,3,2-selenazaborin -4-ones3-Alkyl-1,2,3-diselenaboroles 1 react with n- and i-alkyl isocyanates and hexamethylene diisocyanate to form the title compounds 2. The reaction of 2 with elementary sulfur leads to the corresponding sulfur system 3. 1H, 11B, 13C, 14N, 77Se NMR spectra, IR and MS dates are reported.
    Notes: 3-Alkyl-1,2,3-diselenaborole 1 reagieren mit n- und i-Alkylisocyanaten und Hexamethylendiisocyanat unter Bildung der Titelverbindungen 2. Die Reaktion von 2 mit elementarem Schwefel führt zum entsprechenden Schwefel-System 3. 1H-, 11B-, 13C-, 14N-, 77Se-NMR-Spektren, IR- und MS-Daten werden mitgeteilt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19861190409
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  • 10
    Electronic Resource
    Electronic Resource
    Synthese und Charakterisierung neuer Se- und S-haltiger Bor-Heterocyclen: 2,3-Dihydro-1,2,3-selenazaborole und 3H-2,1,3-Thiaselenaborole (1988)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 1967-1970 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Characterization of New Se-and S S-Containing Boron Heterocycles: 2,3-Dihydro-1,2,3-selenazaboroles and 3H-2,1,3-Thiaselenaboroles3-Alkyl-3H-1,2,3-diselenaboroles 1 react with sulfur diimides by formation of the hitherto unknown 3-alkyl-2,3-dihydro-1,2,3-selenazaboroles 2. The unexpected substitution of boron-bonded nitrogen by sulfur leads to the 3-alkyl-3H-2,1,3-thiaboroles 3. The 1H-, 11B-, 13C-, 15N-, 29Si-, 77Se-NMR, and mass spectra are discussed.
    Notes: 3-Alkyl-3H-1,2,3-diselenaborole 1 reagieren mit Schwefeldiimiden unter Bildung der bisher unbekannten 3-Alkyl-2,3-dihydro-1,2,3-selenazaborole 2. Die unerwartete Substitution des Bor-ständigen Stickstoffs durch Schwefel führt zu den 3-Alkyl-3H-2,1,3-Thiaselenaborolen 3. Die 1H-, 11B-, 13C-, 15N-, 29Si-, 77Se-NMR- und Massenspektren werden diskutiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19881211112
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