Thioether-Facilitated Iridium-Catalyzed Hydrosilylation of Steric 1,1-Disubstituted Olefins

2019 ◽  
Author(s):  
Shengtao Ding
Keyword(s):  
Side Chains ◽  
Feasible Method ◽  
Iridium Catalysis ◽  
Efficient Strategy ◽  
Terminal Alkenes ◽  
And Control ◽  
Sulfur Containing ◽  
Organosilicon Polymers

<p>One facile and efficient strategy for the hydrosilylation of steric 1,1-disubstituted terminal alkenes is demonstrated. Investigations on substrate scope and control experiments revealed the necessity of thioether in promoting this process under a simple iridium catalysis system. This convenient and feasible method is expected to be useful in the synthesis of sulfur-containing organosilicon polymers with different side-chains.</p><p><br></p>

Thioether-Facilitated Iridium-Catalyzed Hydrosilylation of Steric 1,1-Disubstituted Olefins

2019 ◽  
Author(s):  
Shengtao Ding
Keyword(s):  
Side Chains ◽  
Feasible Method ◽  
Iridium Catalysis ◽  
Efficient Strategy ◽  
Terminal Alkenes ◽  
And Control ◽  
Sulfur Containing ◽  
Organosilicon Polymers

<p>One facile and efficient strategy for the hydrosilylation of steric 1,1-disubstituted terminal alkenes is demonstrated. Investigations on substrate scope and control experiments revealed the necessity of thioether in promoting this process under a simple iridium catalysis system. This convenient and feasible method is expected to be useful in the synthesis of sulfur-containing organosilicon polymers with different side-chains.</p><p><br></p>

Improving the electron transport performance by changing side chains in sulfur-containing azaacenes: a combined theoretical investigation on free molecules and an adsorption system

2019 ◽  
Vol 43 (14) ◽  
pp. 5414-5422 ◽  
Author(s):  
Keke Wen ◽  
Xiao Pan ◽  
Songyan Feng ◽  
Wenpeng Wu ◽  
Xugeng Guo ◽  
...  
Keyword(s):  
Electron Transport ◽  
Theoretical Investigation ◽  
Side Chains ◽  
Adsorption System ◽  
System P ◽  
Free Molecules ◽  
Sulfur Containing

The properties of designed sulfur-containing azaacene electron transport materials by changing side chains are theoretically investigated.

Tuning liquid crystalline phase behaviour in columnar crown ethers by sulfur substituents

2017 ◽  
Vol 4 (5) ◽  
pp. 790-803 ◽  
Author(s):  
Jochen Kirres ◽  
Katharina Schmitt ◽  
Iris Wurzbach ◽  
Frank Giesselmann ◽  
Sabine Ludwigs ◽  
...  
Keyword(s):  
Crown Ethers ◽  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Room Temperature ◽  
Phase Behaviour ◽  
Liquid Crystalline Phase ◽  
Side Chains ◽  
Columnar Mesophases ◽  
Sulfur Containing

Sulfur-containing side chains in the periphery ofo-terphenyl or triphenylene units of crown ethers induce room-temperature columnar mesophases.

Application of Radioactive Sulfur to the Study and Control of the Vulcanization Process

1956 ◽  
Vol 29 (2) ◽  
pp. 509-510 ◽  
Author(s):  
Z. N. Tarasova ◽  
M. Ya Kaplunov ◽  
B. A. Dogadkin
Keyword(s):  
Nitric Acid ◽  
Considerable Increase ◽  
Temperature And Pressure ◽  
And Control ◽  
Kinetics Of ◽  
Vulcanization Process ◽  
Sulfur Containing ◽  
Rubber Stock ◽  
Metallic Potassium ◽  
Soft Rubber

Abstract Ordinarily the kinetics of the vulcanization process is controlled by the proportion of combined sulfur, which is determined by the method of oxidation with nitric acid and bromine, the method of fusion with metallic potassium and magnesium, and other methods. A considerable increase of the rapidity and accuracy of the determinations may be achieved if labeled sulfur, containing the isotope S35, is used as the vulcanizing agent. The half-life of this isotope is 87.5 days, and the energy of the β-particles amounts to 0.17 Mev. The combined sulfur content is determined from the intensity of theβ-radiation. The method which we developed can be described as follows. A rubber stock, containing labeled sulfur of known radioactivity, is mixed on a laboratory mill. A sheet of this rubber stock, wrapped in cellophane, is vulcanized in a press at a given temperature and pressure. The thickness of the sheets should not be less than the maximum length of the path of β-particles in the rubber. for a soft rubber, this thickness amounts to 0.3 mm.

Antiestrogenic Activities of 3,8-Dihydroxy-6,11-dihydrobenzo[a]carbazoles with Sulfur-Containing Side Chains

2000 ◽  
Vol 333 (9) ◽  
pp. 305-311 ◽  
Author(s):  
Thomas Golob ◽  
Christian Biberger ◽  
Georg Walter ◽  
Erwin von Angerer
Keyword(s):  
Side Chains ◽  
Sulfur Containing

Cross dehydrogenative coupling of sugar enol ethers with terminal alkenes in the synthesis of pseudo-disaccharides, chiral oxadecalins and a conjugated triene

2018 ◽  
Vol 16 (15) ◽  
pp. 2666-2677 ◽  
Author(s):  
Nazar Hussain ◽  
Madhu Babu Tatina ◽  
Debaraj Mukherjee
Keyword(s):  
Enol Ethers ◽  
Efficient Strategy ◽  
Dehydrogenative Coupling ◽  
Terminal Alkenes ◽  
Conjugated Triene

An efficient strategy for the synthesis of C-2 and C-3 branched sugar dienes via cross dehydrogenative coupling of sugar enol ethers with terminal alkenes was developed.

Compounds with Some Sulfur-containing Side-chains

1945 ◽  
Vol 67 (10) ◽  
pp. 1847-1848
Author(s):  
Henry Gilman ◽  
Leo Tolman
Keyword(s):  
Side Chains ◽  
Sulfur Containing

Effect of substitution positions of alkyl side chains in phenanthrodithiophene-isoindigo copolymers: The enhancement of crystallinity and control of molecular orders

2018 ◽  
Vol 56 (15) ◽  
pp. 1757-1767 ◽  
Author(s):  
Hiroki Mori ◽  
Shuto Hara ◽  
Ryota Toyama ◽  
Yuya Asanuma ◽  
Ryosuke Takahashi ◽  
...  
Keyword(s):  
Side Chains ◽  
Alkyl Side Chains ◽  
And Control
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