15930-75-3Relevant academic research and scientific papers
Synthesis and dielectric properties of the eco-friendly insulating gas thiazyl trifluoride
Deng, Jiayan,Peng, Min,Gao, Zhanyang,Wang, Yi,Wang, Baoshan,Zhou, Wenjun,Peng, Ruichao,Luo, Yunbai
, p. 2740 - 2746 (2020)
Sulfur hexafluoride (SF6), which is known as a superior electrically insulating and arc-quenching medium, plays a decisive role in the modern transmission and distribution network of electric energy, especially in high-voltage power networks. However, the ever-increasing usage of SF6 also leads to the continuous escalation of atmospheric SF6 levels, which is considered to be the main cause of the greenhouse effect. To decrease this environmental impact, eco-friendly alternatives to SF6 have been researched for decades. To date, no significant success has been made regarding replacement gases for transmission networks. Some potential alternatives have comparatively lower global warming potential (GWP) but involve technical trade-offs. Thiazyl trifluoride, which has some excellent chemical and electric properties, is a novel substitution candidate for SF6. In this article, an efficient synthetic route starting from sulfur monochloride and followed by ammonization and fluorination was proposed. The structures of the intermediates and the target products were determined by X-ray diffraction (XRD), infrared spectroscopy (IR), and gas chromatography-mass spectrometry (GC-MS). The effects of some determining factors on the yield and purity, including the molar ratio of the reactants, recrystallization conditions and condensation temperature, were also investigated. The results showed that the overall yield of thiazyl trifluoride was approximately 25%, while the purity could be up to 90.6% under optimal conditions.
Recyclable Pd2dba3/XPhos/PEG-2000 System for Efficient Borylation of Aryl Chlorides: Practical Access to Aryl Boronates
Cai, Mingzhong,Huang, Bin,Luo, Chengkai,Xu, Caifeng
, (2021/12/02)
Pd2dba3/XPhos in poly(ethylene glycol) (PEG-2000) is shown to be a highly stable and efficient catalyst for the borylation of aryl chlorides with bis(pinacolato)diboron. The borylation reaction proceeds smoothly at 110 °C, delivering a wide variety of aryl boronates in good to excellent yields with high functional group tolerance. The crude products were easily isolated via simple extraction of the reaction mixture with cyclohexane. Moreover, both expensive Pd2dba3 and XPhos in PEG-2000 system could be readily recycled and reused more than six times without loss of catalytic efficiency.
Palladium-catalyzed borylation of aryl arenesulfonates with dialkoxyboranes
Murata, Miki,Oda, Takeshi,Sogabe, Yosuke,Tone, Hirofumi,Namikoshi, Takeshi,Watanabe, Shinji
supporting information; experimental part, p. 962 - 963 (2011/12/05)
The cross-coupling of aryl arenesulfonates with dialkoxyboranes proceeded in the presence of Bu4NI and a catalytic amount of [Pd(dba) 2]/1,1'-bis(di-tert-butylphosphano)ferrocene, giving good yields of the corresponding arylboronates. The protocols tolerate a wide range of functional groups, including ester, nitrile, and ketone.
Sulfonamide derivatives
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Page 23, (2010/02/05)
The present invention provides certain sulfonamide derivatives useful for potentiating glutamate receptor function in a patient and therefore, useful for treating a wide variety of conditions, such as psychiatric and neurological disorders.
Palladium-catalyzed borylation of aryl halides or triflates with dialkoxyborane: A novel and facile synthetic route to arylboronates
Murata, Miki,Oyama, Takashi,Watanabe, Shinji,Masuda, Yuzuru
, p. 164 - 168 (2007/10/03)
A direct borylation of aryl halides or triflates with dialkoxyborane was investigated. The coupling reaction of pinacolborane with aryl halides or triflates in the presence of a catalytic amount of PdCl2(dppf) together with a base provided arylboronates in high yields. The product distributions were strongly dependent on the base employed, and the tertiary amine, especially Et3N, was effective for the selective formation of the boron-carbon bond. The reaction conditions were so mild that arylboronates having a variety of functional groups such as carbonyl, cyano, and nitro groups were readily prepared.
X-ray photoelectron spectroscopic study of sulfur-nitrogen-fluorine compounds
Beach, David B.,Jolly, William L.,Mews, Rüdiger,Waterfeld, Alfred
, p. 4080 - 4084 (2008/10/08)
The gas-phase core binding energies of NSF, NSF3, and several compounds of the types NSF2R and F2SNR have been determined. Qualitative interpretation of the data shows that N(pπ)→S(dπ) bonding is probably important in the NSF2R compounds and in NSF3, that the bonding of the sulfur atom in NSF is similar to that in SO2, and that the nitrogen atom of NSF3 is more negatively charged than that of NSF (in spite of a stronger N-S bond in NSF3). Quantitative interpretation of the data for NSF and NSF3, together with literature valence ionization potentials, shows that the HOMO of each molecule has principally nitrogen 2p character and is stabilized by interaction with a higher lying sulfur 3d orbital. The approximate atomic orbital contributions to the other molecular orbitals of these molecules are deduced.
