Detail of "18395-90-9"

Reference

Studies of cyclic di-tert-butylsilylene derivatives of diols and hydroxy acids by gas chromatography-mass spectrometry

Studies of cyclic di-tert-butylsilylene derivatives of diols and hydroxy acids by gas chromatography-mass spectrometry. Brooks, C. J. W.; Cole, W. J.; Barrett, G. M. (Chem. Dep., Univ. Glasgow, Glasgow G12 8QQ, UK). J. Chromatogr., 315, 119-33 (English) 1984. CODEN: JOCRAM. ISSN: 0021-9673. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 22, 80 Gas chromatog.Several substances like 18395-90-9 may be metioned in this study.-mass spectrometry of cyclic di-tert-butylsilylene (DTBS) derivs. of 21 1,2- and 4 1,3-diols, 2 catechols and 2 a- and 1 b-hydroxy acid were reported. In general, the derivs. showed very satisfactory gas-chromatog. properties, having retention indexes (on OV-1 phase) ~150-250 units above those of analogous butaneboronates. The mass spectra showed several characteristic features. Mol. ions were almost always present, though in modest abundance except from arom. substrates. DTBS derivs.Chemical with cas number 18395-90-9 also plays role. of acyclic and alicyclic diols gave major ions corresponding to [M - C4H9]+ and [M - C4H9 - C3H6]+, whereas catechol derivs. yielded abundant mol. ions and distinctive fragment ions of types [M - C4H8]·+ and [M - C4H8 - C3H7]+. ..

Diamino-di-tert-butylsilanes

Diamino-di-tert-butylsilanes. Building blocks for cyclic (SiN)2, (SiNBN)2, (SiN2Sn), and spirocyclic (SiN2)2Si, (SiN2Sn)2S compounds. Rakebrandt, H. J.; Klingebiel, U. (Institut Anorganische Chemie, Universitat Gottingen, Goettingen D-37077, Germany). Zeitschrift fuer Anorganische und Allgemeine Chemie, 623(8), 1264-1268 (German) 1997 Barth. CODEN: ZAACAB. ISSN: 0044-2313. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) (Me3C)2SiClNHR (R = H, Me) is obtained by ammonolysis or aminolysis of (Me3C)2SiCl2 in hexane. (Me3C)2Si(NHLi)2 reacts with FSiMe2R1 (R1 = Me, F) in a molar ratio 1:2 to give the corresponding 1,3,5-trisilazanes (Me3C)2Si(NHSiMe2R1)2, in a molar ratio 1:1 with F3SiN(SiMe3)2 to give the 1,3-diaza-2,4-disilacyclobutane (Me3C)2Si(NH)2SiFN(SiMe3)2, and with F2BN(SiMe3)2 to give the 1,3,5,7-tetraaza-2,6-dibora-4,8-disilacyclooctane [(Me3C)2SiNH-BN(SiMe3)2NH]2. (Me3C)2Si(NMeLi)2 reacts with SiF4 with formation of the 1,3,5-trisilazane (Me3C)2Si(NMeSiF3)2 and spirocyclic [(Me3C)2Si(NMe)2]2Si, and with SnCl2 the cyclosilazane [(Me3C)2SiNMe]2 is obtained. 18395-90-9 are also occured in this study. (Me3C)2Si(NLiSiMe3)2 reacts with SnCl2 to give the cyclo-1,3-diaza-2-sila-4-stannylene (Me3C)2Si(NSiMe3)2Sn. 18395-90-9 are also occured in this study. Oxidn. of the latter with elemental S leads to the formation of the spirocyclic [(Me3C)2Si(NSiMe3)2SnS]2. ..