共查询到20条相似文献,搜索用时 31 毫秒
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Christian R. Samanamu Monika L. Amadoruge Charles S. Weinert James A. Golen Arnold L. Rheingold 《Phosphorus, sulfur, and silicon and the related elements》2013,188(6):1389-1395
Abstract We have employed the hydrogermolysis reaction for the preparation of rare branched oligogermanes, and have obtained for the first time the X-ray crystal structures of several branched tetragermanes, including (Ph3Ge)3GePh, (Ph3Ge)3GeH, and (Ph3Ge)3GeX (X = Cl or Br). We also have at our disposal branched tetragermanes having the formula (EtOCH2CH2Bu n 2Ge)3GePh, where the ethoxyethyl substituent serves as a protecting group for a germanium–hydride active site. These reagents have been employed for the stepwise synthesis of higher branched systems having up to 13 bonded germanium atoms in the oligomer backbone. The synthesis, structures, and physical characteristics of these systems are described. GRAPHICAL ABSTRACT 相似文献
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Neelam Harkut Padam N. Nagar 《Phosphorus, sulfur, and silicon and the related elements》2013,188(11):2517-2524
Reactions of 2-chloro-2-oxo-1,3,2-dioxaphosphorinanes with ammonium alkylene/dialkyl dithiophosphates in a 1:1 molar ratio in refluxing benzene solution yields nonvolatile, yellow viscous liquids of the type (S)S(O) and (RO)2 P(S)S(O) , respectively. [G = ? CH2CH2CHCH3?,. ? C(CH3)2CH2CHCH3?,. ? CH2C(CH3)2CH2; R = i-C3H7, C2H5]. These compounds are hygroscopic and monomeric in nature. The newly synthesized derivatives have been characterized by physicochemical and spectroscopic techniques (IR, NMR [1H&31P], and M.W). 相似文献
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Vladimir Ya. Lee Shogo Miyazaki Hiroyuki Yasuda Akira Sekiguchi 《Phosphorus, sulfur, and silicon and the related elements》2013,188(6):1346-1350
The reaction of trisilirene 1 with propylene sulfide or elemental sulfur produced Si3S-bicyclo[1.1.0]butane 2, which underwent Si–Si insertion of a second S atom forming Si3S2-bicyclo[1.1.1]pentane 3. Analogous reactions of 1 with elemental Se or Te resulted in the formation of heavier analogues of 2, namely, Si3Se-bicyclo[1.1.0]butane 4 and Si3Te-bicyclo[1.1.0]butane 5. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file. GRAPHICAL ABSTRACT 相似文献
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Demetrios N. Nicolaides Konstantinos E. Litinas Ioannis Psaroulis Aristea Makri Spyros Adamopoulos 《Phosphorus, sulfur, and silicon and the related elements》2013,188(10):2104-2111
Abstract Dimethyl (chromen-3-yl)-(dialkoxyphosphoryl)succinates are prepared from the reaction of 4-hydroxycoumarin with DMAD and P(OR)3. 4-Hydroxy-1-methylquinolinone reacts with DMAD and P(OEt)3 to give dimethyl (quinoline-3-yl)-(diethoxyphosphoryl)-succinate. GRAPHICAL ABSTRACT 相似文献
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A. M. Pinchuk A. P. Marchenko G. N. Koidan 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1-4):195-198
Abstract The halophilic reactions of the derivatives of PIII R3 P (R = R2N, Alk, Ar) with CCl4, having preparative signifi-cance, are studied thoroughly. As far as the compounds of R2PHlg type are concerned, at the beginning of our re-searches there was was an opinion that the interaction of R2PHlg with CC14 cannot be possible because of the low nucleophility of phosphorus. We determined for the first time that diamidochlorophosphites 1 react with CC14 at the temperature 20°C and form the compounds 2, 3.1 相似文献
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Saliha Begeç Sümeyya Alataş Adem Kılıç 《Phosphorus, sulfur, and silicon and the related elements》2013,188(7):1531-1537
Abstract In this work, the reactions of diphenylphosphinic chloride, (C6H5)2P(O)Cl, 1, with the sodium salts of sterically hindered phenol derivatives (2a-2j) were investigated. Novel alkyl-substituted aryl diphenyl phosphinate esters (C6H5)2P(O)OAr (3-12) were obtained from these reactions. Satisfactory analytical and spectroscopic results were obtained for all the new compounds. GRAPHICAL ABSTRACT 相似文献
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Akira Sekiguchi Yutaka Ishida 《Phosphorus, sulfur, and silicon and the related elements》2013,188(6):1317-1322
Abstract The halogen-substituted cyclotrigermenes (tBu3Si)3Ge3X (X = F, Cl, Br, I) (2) were synthesized by the reaction of tris(tri-tert-butylsilyl)cyclotrigermenylium tetrakis(2,3,5,6-tetrafluorophenyl)borate) (1 +?TTFPB?) with potassium halides (KF, KCl, KBr, KI). Intramolecular halogen migration over the three-membered ring skeleton was observed in the solution. GRAPHICAL ABSTRACT 相似文献
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