(Polychloromethyl)silanes (Cl3−mMemSiCH3−nCln: m=0–3; n=2, 3) reacted with excess benzene in the presence of aluminum chloride to give (polyphenylmethyl)silanes. Such reactions occurred at the temperatures ranging from room temperature (m=2, 3; n=2) to 80°C (m=0, 1; n=2, 3), indicating that th...

Aiming at a convenient way toward the synthesis of terminal (fluoroalkyl)silanes, the effect of (diethylamino)sulfur trifluoride (DAST) on some terminal hydroxyalkylsilanes was investigated. Reaction of DAST with a substituted (hydroxyethyl)diphenylsilane led to the formation of the desired (2-f...

(ω-Chloroalkyl)silanes [Cl3−mMemSi(CH2)nCl: m=0–3, n=1–3] underwent Friedel–Crafts alkylation with benzene in the presence of aluminum chloride to give alkylated products. Such alkylation reactions took place at temperatures ranging from room temperature (m=0–1, n=2, 3; m=3, n=1) to 80 (m...

N-[Chloro(dimethyl)silyl]methyl-N,N′-diphenylurea with intramolecular coordination bond C=O→Si was prepared by interaction of N,N′-diphenylurea with silane ClCH2SiMe2Cl. Structure of this compound was confirmed by 1H, 13C, 29Si NMR spectroscopy and X-ray diffraction analysis.

The infrared (3500 to 30 cm−1) spectra of gaseous and solid and the Raman (3500 to 10 cm−1) spectra of the liquid with quantitative depolarization ratios and solid chloromethyl methyl silane, ClCH2SiH2CH3, have been recorded. Similar data have also been recorded for the Si-d2 isotopomer. These d...

The infrared spectra of gaseous and solid chloromethyl methyl silane, ClCH2SiH2CH3, and chloromethyl methyl difluorosilane, ClCH2SiF2CH3, were recorded. Additionally, the variable temperature infrared spectra of the sample dissolved in liquid krypton and/or xenon were obtained. Both the trans an...

The infrared spectra of gaseous and solid 2-chloroethyl silane, ClCH2CH2SiH3, and 2-chloroethyl trifluorosilane, ClCH2CH2SiF3, was recorded. Additionally, the variable temperature infrared spectra of the sample dissolved in liquid xenon was obtained. Both the trans and gauche conformers are pres...

The thermal decomposition kinetics of 2-chloroethylsilane and derivatives in the gas phase has been studied computationally using density functional theory, along with various exchange-correlation functionals (UM06-2x and ωB97XD) and the aug-cc-pVTZ basis set. The calculated energy profile has ...

New type of fluoride ion catalyzed allylation agent (1a, 1b), allenylation agent (9, 10), and alkynylation agent (17) can be successfully utilized for various carbonyl substrates. The rate acceleration is ascribable to the shift of equilibrium to the chelate complexes with Bu4NF by the favorable...

Various aromatic aldehydes were converted to one-carbon elongate 1,1-bis(silyl)-1-alkene derivatives bearing Si–H functional and reactive groups in a convenient one-pot operation via the Peterson protocol. Then poly(styrene) and poly(α-methylstyrene) (І&II) random homopolymers were synthesized...

The moisture-sensitive compound [{bromodimethylsilyl}bis(trimethylsilyl)methane], [(Me3Si)2(Me2SiBr)CH] 1 has been synthesized by the bromination of the hydride [(Me3Si)2(Me2SiH)CH] in CCl4 in good yield. Compound 1 has been characterized by multinuclear NMR and a single crystal X-ray diffractio...

Acetonylation of α,β-enones can be achieved by reactions either with (2-methyl-2-propenyl)trimethylsilane or with allyltrimethylsilane followed by oxidative cleavage of the double bond or by the Wacker reaction, respectively. Annelation of the 1,5-diketones is also described briefly.

The reaction of 1-acyloxy-2-propenyltrimethylsilane (1) with α, β-unsaturated ketones in the presence of tetra-n-butylammonium fluoride has been investigated. In all cases the reaction was regiospecific resulting in the conjugate addition of a 1-acyloxy-2-propenyl function.

2-Cyclopropyl-2-propenyltrimethylsilane reacts with various kinds of carbon electrophiles to afford the corresponding allylation products without contamination of other products based on the rearrangement of a cyclopropyl ring.

From a gaseous mixture of iron pentacarbonyl (Fe(CO)5), cobalt tricarbonyl nitrosyl (Co(CO)3NO), and 2-propenyltrimethylsilane (allyltrimethylsilane) (ATMeSi), spherical aerosol particles with a mean diameter of 0.36 μm were produced under UV light irradiation. Addition of ATMeSi accelerated th...

We report the application of reversible addition-fragmentation chain transfer (RAFT) polymerization using poly(dimethylsiloxane) (PDMS) chain transfer agents toward the synthesis of a variety of diblock copolymers containing tert-butyldimethylsilyl methacrylic (MASi) monomer units. The methodolo...

A highly sensitive and selective fluorogenic probe for fluoride ion, 4-methylumbelliferyl tert-butyldimethylsilyl ether (4-MUTBS), was designed and synthesized. 4-MUTBS was a weakly fluorescent compound and was synthesized via the one-step reaction of 4-MU with tert-butyldimethylsilyl chloride. ...

A general method for the selective cleavage of tert-butyldimethylsilyl ethers in the presence of tert-butyldiphenylsilyl ones has been established using a combination of H2O and a concentrated solution of LiCl in DMF at 90 °C. Since no acids, bases, reducing or oxidizing agents are used, the me...

We have developed four new dyes for DSSCs with a tert-butyldimethylsilylether in order to test their physical and photovoltaic properties. These dyes consist of a novel donor based on a functionalized N,N-dialkylaniline, a heteroaromatic π-conjugated spacer, such as thiophene or benzothiadiazol...

The aim of this study was to find biocatalyst which uses thebaine and extract of different parts of Papaver bracteatum to synthesize morphine alkaloids. The thebaine-resistant strains were obtained from microbial flora of different parts of P.bracteatum. They were purified and treated utilizing ...