Hydrosilylation of 2-(2-Propynyl)-2,3-dihydro-1,2-benzothiazol-3-one 1,1-Dioxide with 1-Alkynyl(dimethyl)- and Bis(1-alkynyl)methylsilanes
作者:G. S. Lyashenko、D. V. Dmitriev、I. A. Yazovtsev、M. M. Demina、A. I. Albanov、A. S. Medvedeva
DOI:10.1023/b:rujo.0000010569.52018.04
日期:2003.10
Hydrosilylation of 2-(2-propynyl)-2,3-dihydro-1,2-benzothiazol-3-one 1,1-dioxide with 1-alkynyldimethyl- and bis(1-alkynyl)methylsilanes of the general formula MenHSi(Cequivalent toCR)(3-n) (n = 1, 2) in the presence of H2PtCl6 (Speier's catalyst) occurs in a nonregioselective but stereoselective fashion, yielding mixtures of the corresponding trans-beta- and alpha-adducts. The fraction of the latter ranges from 50 to 70%, depending mainly on the substrate nature rather than on the nature of substituent at the triple bond of the reagent.
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作者:G. S. Lyashenko、A. S. Medvedeva、I. A. Yazovtsev、A. I. Albanov、M. M. Demina
DOI:10.1023/a:1015586210217
日期:——
The hydrosilylation of a number of acetylenes RCdropCH (R, R' = Ph, CH2OPh, CH2SPh) with alpha-ethynylhydrosilanes Me(2)SiHCHdropCR' in the presence of H2PtCl6 was investigated. The addition did not occur regioselectively, but was stereospecific and afforded a mixture of alpha- and trans-beta-adducts. The replacement of phenyl substituent by phenoxymethyl both in the molecule of ethynylsilane and the acetylene substrate resulted in growing proportion of the a-adduct in the reaction mixture up to 10-60%.
3-Phenoxy- and 3-phenylthio-1-propynyl substituted derivatives of silicon and germanium
作者:G. S. Lyashenko、A. S. Medvedeva、O. B. Bannikova、M. G. Voronkov
DOI:10.1007/bf01169729
日期:1994.3
Me(CH2Cl)SiCl2, EtSiHCl2, and Me2SiHCl afforded the corresponding 3-phenoxy- and 3-phenylthio-1-propynyl substituted derivatives of silicon (PhXCH2C≡C)2SiRR1 and PhXCH2C≡CSiHMe2 (X = O, S). Reactions of the above-mentioned Iotsitch reagents with GeCl4 led to the corresponding germaniumderivatives (PhXCH2C≡C)4Ge (X = O, S).
溴化镁炔丙基苯基醚及其等结构硫化物 BrMgC≡CCH2XPh (X = O, S) 与 MeVinSiCl2、Me(CH2Cl)SiCl2、EtSiHCl2 和 Me2SiHCl 反应得到相应的 3-苯氧基-和 3-苯硫基-1-丙炔取代衍生物硅 (PhXCH2C≡C)2SiRR1 和 PhXCH2C≡CSiHMe2 (X = O, S)。上述 Iotsitch 试剂与 GeCl4 反应生成相应的锗衍生物 (PhXCH2C≡C)4Ge (X = O, S)。
Medvedeva, A. S.; Lyashenko, G. S.; Kozyreva, O. B., Russian Journal of General Chemistry, 1995, vol. 65, # 1.2, p. 145 - 146
作者:Medvedeva, A. S.、Lyashenko, G. S.、Kozyreva, O. B.、Voronkov, M. G.