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Zusammenfassung Chlormethyl-methyl-phosphinsäurechlorid (ClCH2)(CH3)P(O)Cl und Chlormethyl-methyl-thiophosphinsäurechlorid (ClCH2)(CH3)-P(S)Cl reagieren mit aromatische 1,2-Diolen wie Brenzcatechin, mit o-Aminophenol, o-Aminothiophenol und Toluol-3,4-dithiol unter Substitution der beiden Chloratome zu den entsprechenden Benzophosphorinanen.
(ClCH2)(CH3)P(O)Cl and (ClCH2)(CH3)P(S)Cl react with aromatic diols like catechol, o-aminophenol, o-aminothiophenol and toluene-3,4-dithiol with the formation of benzophosphorinanes.
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Zusammenfassung Difunktionelle Phosphor(V)halogenide des Typs CH3P(X)Cl2 mit X=S, O, Se werden in benzol. Lösung bei Anwesenheit von Triäthylamin als Chlorwasserstoffacceptor mit aliphatischen 1,2- und 1,3-Diolen sowie mit 1,2- und 1,3- Dithiolen umgesetzt. Es entstehen cyclische Ester und Thioester der Methanphosphon-, Methanthiophosphon- und Methanselenophosphonsäure.
CH3P(X)Cl2 (X=S, O, Se) reacts with aliphatic 1,2- and 1,3-diols yielding cyclic esters of methanephosphonic, methanethiophosphonic and methaneselenophosphonic acid.
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Zusammenfassung In benzol. Lösung entstehen bei Anwesenheit einer Base fünfgliedrige cyclische Ester der Methanarsinsäure durch Umsetzung von 1,2-Diolen und 1,2-Dithiolen mit Methylarsendihalogenid.
1.2-diols and 1.2-dithiols react with methylarsenicdiiodide in benzene solution and accordance of triethylamine as a base yielding cyclic esters.
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Cyclic Silicic Acid Derivatives By reaction of SiCl4 with oxygen at elevated temperatures a number of chlorsiloxanes consisting of more or less fused rings can be prepared of which those components of low molecular weight can be separated by combining distillation and crystallization. Methyl and ethyl esters of silicic acids are obtained by reaction with methyl or ethyl nitrite, resp. The compounds are characterized by silicon n.m.r. and mass spectroscopy.  相似文献   

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Cyclic Phosphides of Carbonic Acids 2-Organo-2-benzophospholen-1,3-dione have been prepared by the reaction of o? C6H4(COCl)2 with Li2PC2H5 or C6H5PH2. Using disubstituted carbonic acid-chlorides the same reaction leads to indefinable products. 4-Butenoyl- and 5-Pentenoyl-phenyl- and -cyclohexylphosphines are produced from 3-butenoic and 4-pentenoic acid-chlorides and C6H5PH2 or C6H11PH2. These products are transferred to heterocyclic systems after addition of the P? H-group to the C? C-doublebond. By LiAlH4 the phospholan-2-ones and phosphorinan-2-ones are reduced to the corresponding alcohols. The saponification of the parent compounds gives phosphino carbonic acids. The prepared P-heterocycles behave like ordinary tert. phosphines.  相似文献   

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Metabolism of Acetylenic Monocarboxylic and Dicarboxylic Acids Feeding of acetylenic monoacids with chain length of 11 to 18 C-atoms to rats led to excretion of dicarboxylic acids with retained triple bonds. 10-Octadecynoic acid led to the formation of metabolites with even and odd number of C-atoms, suggesting in addition to established ω- and β-oxidation an α-oxidative pathway.  相似文献   

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