Category: 312-40-3

Klingebiel, Uwe published the artcileReactions of lithio-hexamethylcyclotrisilazane with silicon-fluoro compounds, Name: Difluorodiphenylsilane, the publication is Chemische Berichte (1977), 110(4), 1277-83, database is CAplus.

The reaction of lithiocyclotrisilazane I (R = Li with F2SiR1R2 gave 62-95% I (R = SiFR1R2, R1 = F, R2 = F, Me, Ph; R1 = Me, Ph, R2 = Ph; R1 = H, R2 = Me). Similarly, 1,3-dilithio-2,2,4,4,6,6-hexamethylcyclotrisilazane gave corresponding disubstituted derivatives Ring coupling by a Si bridge was achieved by the reaction of SiF-substituted cyclotrisilazanes with LiNHCMe3, or by the reaction of these compounds with two moles of a lithiocyclotrisilazane.

Chemische Berichte published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Name: Difluorodiphenylsilane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Dua, Sujan S. published the artcilePreparation of tris(trimethylsilyl)methyl (“trisyl”) derivatives of silicon, Category: catalysis-chemistry, the publication is Journal of Organometallic Chemistry (1979), 178(1), 75-82, database is CAplus.

Treatment of (Me₃Si)₃CLi (TsiLi) with appropriate Si halides gave compounds (Me₃Si)₃CSiRR¹X; e.g., TsiSiCl₃, TsiSiMeCl₂, TsiSiMe₂X (X = Cl, OMe), TsiSiPh₂X (X = F, Cl, OMe), and TsiSiPhMeH. The trisyl group causes very large steric hindrance to nucleophilic displacements at the Si to which it is attached, so that (unless one or more hydride ligands are present) most of the common displacements at Si do not occur. However, halides can be reduced to hydrides by LiAlH₄, and the hydrides can be reconverted into halides in electrophilic displacements by halogens. The presence of even one hydride ligand markedly reduces the hindrance, so that, for example, TsiSiPhHI reacts with refluxing MeOH to give TsiSiPhH(OMe).

Journal of Organometallic Chemistry published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Category: catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Chernyshev, E. A. published the artcileAddition of arylfluorosilanes to styrene, HPLC of Formula: 312-40-3, the publication is Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya (1965), 650-4, database is CAplus.

Addition of 16 g. 40% HF at -30 to -40¡ã to 60 g. PhSiHCl₂ gave 74% PhSiHF₂, b. 111-11.5¡ã, n²⁰_D 1.4442, d₂₀ 1.1194; similarly were prepared 55% Ph₂SiHF, b₂ 92-3¡ã, 1.5550, 1.1072, and 48% 1-C₁₀H₇SiHF₂, b₂₀ 124-6¡ã, 1.5600, 1.2136. PhSiHCl₂ added to PhCH:CH₂ in the presence of H₂PtCl₆ catalyst gave after 5 hrs. on a stream bath 43% PhCH₂CH₂SiPhF₂, b_2.5 134¡ã, 1.5650, 1.1688. PhCH:CH₂ and PhSiHF₂ similarly gave in 2 hrs. at 30-5¡ã 83% mixed PhC₂H₄SiPhF₂, b₂₀ 160-2¡ã, 1.5262, 1.1156; ir spectra indicated that the CHMe bridge predominated over the CH₂CH₂ bridge in this mixture by 3:1. PH₂SiHF and PhCH:CH₂ gave 80% 1:1 mixture of isomeric PhC₂H₄SiPh₂F, b_4.5 194.5-96¡ã, 1.5828, 1.1036. 1-C₁₀H₇SiHF₂ and PhCH:CH₂ gave 65% mixed isomers of 1-C₁₀H₇Si(C₂H₄Ph)F₂, b₂ 154-6¡ã, 1.5915, 1.1876. A 1:1 mixture of PhSiHF₂ and PhSiHCl₂ kept 1.5 hrs. then treated with PhCH:CH₂ and H₂PtCl₆ gave 83.8% PhC₂H₄SiPhF₂; other ArSiHF₂ behaved similarly. Passage of PhSiHF₂ and PhCl through a quartz tube at 580¡ã gave 22% Ph₂SiF₂, b₄ 98¡ã, 1.5372, 1.1554, and some PhSiF₃ and PhSiHF₂.

Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, HPLC of Formula: 312-40-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Apostolopoulos, A. X. published the artcileSilylation of human enamel and dentine and its effect on acid dissolution, Safety of Difluorodiphenylsilane, the publication is Archives of Oral Biology (1971), 16(2), 233-5, database is CAplus and MEDLINE.

Treatment of human enamel and dentine particles with diphenyldifluorosilane (I), triphenyl-chlorosilane, dodecyltrichlorosilane, and 2 other silylating agents caused a reduction in their rate of dissolution by an acidic acetate buffer. Significant differences in the effect of these reagents were observed between enamel and dentine. These differences could be attributed to: the ability of each silylating agent to react with various functional groups on the surface of the enamel and dentine particles and form water-stable silyl derivatives; the density of the silyl derivatives and their degree of hydrophobicity; the generation of HF during the silylation process with reagents containing displaceable F and exchange of its F- with the hydroxyl group on the apatite lattice.

Archives of Oral Biology published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Safety of Difluorodiphenylsilane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Damrauer, Robert published the artcilePreparation and NMR studies of pentacoordinated silicon anions, Related Products of catalysis-chemistry, the publication is Organometallics (1986), 5(7), 1490-4, database is CAplus.

The 18-crown-6 potassium salts of trifluorodiphenylsiliconate, trifluoromethylphenylsiliconate, tetrafluorophenylsiliconate, and difluorotriphenylsiliconate were prepared These are remarkably stable and nonhygroscopic. Each were studied by variable-temperature ¹H and ¹⁹F NMR spectroscopy. The dynamic behavior was discussed.

Organometallics published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Benmalek, M. published the artcileExtraction of halides with organometallics. I. Comparative study of extraction with phenyl derivatives of Group IV and VA elements, Recommanded Product: Difluorodiphenylsilane, the publication is Journal of Inorganic and Nuclear Chemistry (1974), 36(6), 1359-63, database is CAplus.

The extraction of F- from aqueous solutions was studied using Ph derivatives of Group IVA and VA elements. At pH < 2, Ph2SiCl2 is the most suitable extractant, but Ph3SbCl2 and Ph3BiCl2, although less soluble, allow F- separation at pH 1-7.

Journal of Inorganic and Nuclear Chemistry published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Recommanded Product: Difluorodiphenylsilane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Swamy, K. C. Kumara published the artcilePentacoordinated molecules. 79. Pentacoordinate acyclic and cyclic anionic oxysilicates. A silicon-29 NMR and x-ray structural study, Recommanded Product: Difluorodiphenylsilane, the publication is Journal of the American Chemical Society (1990), 112(6), 2341-8, database is CAplus.

Variable temperature ²⁹Si NMR spectral measurements revealed the formation of acyclic anionic silicates, [R_n‘Si(OR)_5-n][K,18-crown-6], n = 0-3, from reactions of alkoxy and aryloxysilanes with the resp. potassium alkoxide or potassium aryloxide in the presence of 18-crown-6. This elusive class of substances has been proposed as model intermediates in the sol-gel process. In the case of [PhSi(OCH₂CF₃)₄][K,18-crown-6], isolation as a crystalline solid was achieved. The ²⁹Si chem. shifts move progressively downfield from Si(OR)₅^– to R’Si(OR)₄^– to R₂‘Si(OR)₃^–. Pentaalkoxysilicate anions react rapidly with pinacol to form the corresponding five-coordinated bicyclic anionic silicate. Independent synthesis and an x-ray structural study verified the formation of the bis(pinacolate) [(OCMe₂CMe₂O)₂SiOCHMe₂][K,18-crown-6] (I). For comparison of structural distortions, the synthetic and x-ray characterization of the related anionic oxysilicates [(C₆H₄(CF₃)₂CO)₂SiR][Et₄N] (II) and [(C₆H₄O₂)₂SiR][Me₂NH₂] (III) (R = cyclohexyl) are reported. The structures of I and II are trigonal-bipyramidal and that of III is rectangular-pyramidal.

Journal of the American Chemical Society published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C9H9F5Si, Recommanded Product: Difluorodiphenylsilane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Roshchin, A. I. published the artcilePalladium-catalyzed reactions of diphenyldifluorosilane and diphenyldiethoxysilane with aryl halides in aqueous dimethylformamide, COA of Formula: C12H10F2Si, the publication is Doklady Akademii Nauk (1994), 334(5), 602-4, database is CAplus.

Cross-coupling reactions of ArBr (Ar = e.g., 2-O₂NC₆H₄, 4-AcC₆H₄, 2-KO₂CC₆H₄) with Ph₂SiF₂ in presence of 2 mol % PdCl₂ and KF in aqueous DMF at 120¡ã afforded high yields of the corresponding biaryls ArPh (up to 95%). Reaction of 4-IC₆H₄Me with Ph₂Si(OEt)₂ in presence of PdCl₂ and KF afforded up to 71% 4-MeC₆H₄Ph.

Doklady Akademii Nauk published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, COA of Formula: C12H10F2Si.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Voronkov, M. G. published the artcileReaction of organyltrifluorosilanes with dimethylsulfoxide and dimethylformamide and its spectroscopic investigation, Related Products of catalysis-chemistry, the publication is Russian Journal of General Chemistry (Translation of Zhurnal Obshchei Khimii) (2001), 71(12), 1865-1868, database is CAplus.

Reaction of organotrifluorosilanes RSiF₃ (R = C₆H₅, 3-O₂NC₆H₄, and C₆H₅CH₂) with DMSO and DMF (B) gave the complexes 2B¡¤SiF₄ and R₂SiF₂. Besides, biphenyl, benzene, Me(fluoromethyl)sulfoxide, and S,S’-dimethyldisulfide-S,S’-dioxide CH₃S(O)S(O)CH₃ were either isolated or identified by chromatomass-spectrometry. Speculative mechanism of the reaction proceeding is discussed. IR spectra of the reaction mixtures and those of 2B¡¤SiF₄ adduct were studied in details; they indicate octahedron structure of the complex with cis arrangement of B ligands.

Russian Journal of General Chemistry (Translation of Zhurnal Obshchei Khimii) published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C9H12O, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Klingebiel, Uwe published the artcileCycloaddition reactions of aminofluorosilanes, SDS of cas: 312-40-3, the publication is Journal of Organometallic Chemistry (1978), 144(3), 381-8, database is CAplus.

[2+2] Cycloaddition reaction of RR¹FSiNHR² with BuLi gave 70-80% I (R = Me, Ph; R¹ = Me, MeEtCH, Ph; R² = Me₂CH, Me₃C, 2,4,6-Me₃C₆H₂) (5 compounds). RR¹FSiNHR² were prepared in 70-90% yields by treating RR¹SiF₂ with LiNHR².

Journal of Organometallic Chemistry published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, SDS of cas: 312-40-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia