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  • 1
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reaction rate constant and the order of the reaction of 2-dimethylamino-[1,3,2]dioxarsolane with diphenylamine are determined. The order of the reaction proves the mechanism, which is discussed for the cleavage of the As−N bond by acid molecules.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 108 (1977), S. 65-68 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The1H-NMR-spectral data of 2-chloro-1.3.2-dioxarsolane are presented and discussed. The protons of the methylene groups form in concentrated solutions by rapide chlorine exchange anAA′A″A‴ spin system. In dilute solutions the protons form anAA′BB′ spin system, which is changed to anAA′A″A‴ system by addition of chlorine ions. The vicinal H−C−C−H-coupling constants indicate a twist-envelope conformation.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 420 (1976), S. 74-84 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of Macrocyclic Arsinous Acid EstersThe reactions of alcoholamines and thioglykol, respectively, with aminoarsines lead to the formation of 8- and 10-membered, cyclic arsinous acid esters. The reaction of different acid NH, OH and SH groups with aminoarsines are examined. I.r. and 1H n.m.r. data are presented and discussed.
    Notes: Durch Umsetzung von Alkoholaminen bzw. Thioglykol mit Aminoarsinen entstehen 8- und 10-gliedrige, cyclische Arsenigsäureester. Die Reaktionen von NH-, OH- und SH-Gruppen verschiedener Acidität mit Aminoarsinen werden untersucht. IR- und 1H-NMR-Daten werden mitgeteilt und diskutiert.
    Additional Material: 4 Tab.
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  • 4
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of 2-Dimethylamino-(1,3,2)-diox-, oxathi-, and dithi-arsolanes with Alcohols or ThiolsThe reactions of 2-dimethylamino-(l, 3,2)-diox-, oxathi- and dithi-arsolanes (CH2)2XYAs—N(CH3)2 (X = Y = O or S; X = S, Y = O) with alcohols and thiols yield by cleavage of the As—N bond in the formation of alkoxy and alkylmercaptoarsolanes (CH2)2XYAs—ZR (X = Y = Z = O or S; X = Y: O, Z = S; X = Y = S, Z = O; X = S, Y = O, Z = O or S), respectively. Some of these arsolanes are not stable but rearrange under formation of 1,2-Bis-(arsolanyl)ethane and arsinous acid esters.
    Notes: Die Umsetzungen der 2-Dimethylamino-(1,3,2)-diox-, oxathi- und dithiarsolane (CH2)2XYAs—N(CH3)2 (X = Y = O oder S; X = S, Y = O) mit Alkoholen und Thiolen führen unter Spaltung der As—N-Bindung zu Alkoxy- bzw. Alkylmerkapto-arsolanen (CH2)2- XYAs—ZR (X = Y = Z = O oder S; X = Y = O, Z = S; X = Y = S, Z = O; X = S, Y = O, Z = O oder S). Die erhaltenen Arsolane sind nicht alle stabil, sondern lagern sich in 1,2-Bis-(arsolanyl)-äthan und Arsenigsäureester um.
    Additional Material: 4 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 406 (1974), S. 52-61 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Dimethylamino Dimethylarsine with 1,2-DiolsThe reactions of (CH3)2As—N(CHs3)2 with 1,2-diols lead to the formation of the esters (CH3)2As—O—CR2—CR2—O—As(CH3)2 and (CH3)2As—O—CR2—CR2—OH. The same reaction with HS—CH2CH2—OH yields only (CH3)2As—S—CH2CH2OH, whereas the cleavage of the As—N bond with HS—CH2CH2—SH results in mixture of mono- and diesters. The mechanism and its influence on the products are discussed. IR and 1H-NMR spectral data are presented.
    Notes: Die Umsetzung von (CH3)2As-N(CH3)2 mit 1,2-Diolen führt zur Bildung der Ester (CH3)2As—O—CR2—CR2—O—As(CH3)2 und (CH3)2As—O—CR2—CR2—OH. Bei der Reaktion mit Monothioglykol entsteht ausschließlich der Thioester (CH3)2As—S—CH2CH2OH, wogegen die Umsetzung mit Dithioglykol ein Gemisch von Mono- und Diestern liefert. Der Reaktionsmechanismus und sein Einflußauf die Produktverteilung wird diskutiert. IR- und 1H-NMR-Spektren werden mitgeteilt.
    Additional Material: 1 Ill.
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  • 6
    ISSN: 0044-2313
    Keywords: Aminoarsanes ; cleavages of As—N bond ; hetrocyclic compounds containing As, S, O, N and C ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Bis(bis-dimethylamino-arsino)methane and Bis(dimethylamino-arsino)methane with Aminoalcohols, Diols, Mono- and DithiodiolsThe reactions of the aminoarsanes (Me2N)2As—CH2—As(NMe2)2 and (Me2N)(Me)As—CH2—As(Me)(NMe2) with aminoalcohols and diols result in the cleavage of the As—N bond. The stoichiometry of the reactions decides, wether cyclic or acyclic compounds are obtained.
    Notes: Die Reaktion der beiden Aminoarsane (Me2N)2As—CH2—As(NMe2)2 und (Me2N)(Me)As—CH2—As(Me)(NMe2) mit Aminoalkoholen und Diolen führt zur Spaltung der As—N-Bindung. Die Stöchiometrie der Reaktionen entscheidet darüber, ob cyclische oder acyclische Produkte erhalten werden.
    Additional Material: 1 Tab.
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  • 7
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The electron-impact and chemical ionisation mass spectra of the arsolanes (CH2)2XYAs—ZR (X, Y and Z = O or S) are compared and the main fragmentation routes given. Electron-impact and chemical ionisation spectra show a dimerisation of the arsolanes.
    Notes: Die Massenspektren der Arsolane (CH2)2XY As—ZR (X, Y und Z= O oder S) bei elektronenstoß- und Chemischer Ionisation werden verglichen und die Haupt-Fragmentierungsreaktionen angegeben. Elektronenstoss-Ionisation- und Chemische-Ionisation-Spektren zeigen eine Dimeerisierung der Arsolane.
    Additional Material: 1 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 403 (1974), S. 56-60 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Alcoholysis of Tris (dimethylamino)arsineThe reaction of tris(dimethylamino)arsine with alcoholes and thioles leads to the formation of esters of the general formula As(XR)3 (X = O and S). The reaction is a suitable preparative method for the synthesis of the esters As(XR)3 (X = O and S).By alcoholysis in steps results an equilibrium system containing the molecules AsX3, AsX2Y, AsXY2, and AsY3 (X = OR, Y = N(CH3)2).
    Notes: Tris(dimethylamino)-arsin setzt sich mit Alkoholen und Thiolen um zu Arsenigsäureestern As(XR)3 (mit X = 0 und S). Die Reaktion eignet sich zur Darstellung von Estern mit beliebigen Resten R. Die bei der stufenweisen Alkoholyse gebildeten Zwischenprodukte [AsN(CH3)2]2OR bzw. As[N(CH3)2](OR)2 bilden ein Gleichgewichtssystem, in dem die Molekeln AsX3, AsX2Y, AsXY2 und AsY3 (mit X = OR und Y = N(CH3)2) vorliegen.
    Additional Material: 2 Ill.
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  • 9
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Complexation of Sulfides and Selenides of di- and tri-tertiary ArsanesThe Oxidation of di- and tri-tertiary arsanes, A[—R—AsMe2]2 and B[—R—AsMe2]3, by elementary sulfur or selenium results in the formation of the sulfides and selenides A[R—As(X)Me2]2 and B[—R—As(X)Me2] 3 (X = S, Se), respectively. The complexation of these ligands with the ion Co2+ is examined.
    Notes: Di- und tri-tertiäre Arsane A[—R—AsMe2]2 bzw. B[—R—AsMe2]3, werden mit elementarem Schwefel und Selen zu den Sulfiden und Seleniden A[—R—As(X)Me2]2 bzw. B[—R—As(X)Me2]3 (X = S, Se) oxidiert. Die Komplexbildung dieser Liganden mit Co2+-Ionen wird untersucht.
    Additional Material: 1 Ill.
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  • 10
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Mass Spectrometric Analysis of Cyclic Arsenious Acid EstersThe mass spectra of cyclic arsenious acid esters RXYAsCH3 (X, Y=O,S) and RO2AsX (X=F, Cl) with electron-impact and chemical ionization are compared. The chemical ionization spectra show, that the esters partly exist as dimeric molecules and that there occure scrambling-reactions with the halides.
    Notes: Die Massenspektren der cyclischen Arsenigsäureester RXYAsCH3 (X, Y=O,S) und RO2AsX (X=F, Cl) bei Elektronenstoß- und chemischer Ionisation werden verglichen. Die Spektren mit chemischer Ionisation zeigen eine partielle Dimerisierung der Ester und Halogen-Austausch-Reaktionen bei den Halogeniden.
    Additional Material: 2 Tab.
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