N-Chlorosuccinimide-promoted synthesis of thiophosphates from thiols and phosphonates under mild conditions
作者:Yi-Chen Liu、Chin-Fa Lee
DOI:10.1039/c3gc41839a
日期:——
A very simple N-chlorosuccinimide-promoted synthesis of thiophosphates through the coupling of thiols and phosphonates is reported. Notably, the reactions were carried out in the absence of a base. Functional groups including fluoro, bromo and trifluoromethyl are all tolerated by the reaction conditions employed. Both aryl and alkyl thiols are coupled smoothly with a broad spectrum of phosphonates to afford the corresponding thiophosphates in good to excellent yields.
A lubricating oil composition for fluid dynamic bearings which comprises 50 to 100% by mass of an ether compound comprising at least one ether bond and having 11 to 34 carbon atoms as the base oil and has a kinematic viscosity of at least 2.2 mm
2
/s at 100° C. is provided. The composition has excellent viscosity characteristics such as excellent fluidity at low temperatures and a small decrease in the viscosity in a high temperature range, exhibits lower evaporability, excellent energy saving property and excellent heat stability and is advantageously used for compact fluid dynamic bearings used under rotation at a high speed.
Fast and transition metal-free general method for the preparation of chalcogenophosphates
作者:Junxing Wang、Xiaolong Wang、Hongjie Li、Jie Yan
DOI:10.1016/j.jorganchem.2018.01.057
日期:2018.3
completes in several minutes under mild conditions, affording the corresponding chalcogenophosphates in moderate to good yields. This fast and transition metal-free procedure provides a general method for the preparation of chalcogenophosphates.
在Cs 2 CO 3和I 2的存在下,亚磷酸二烷基酯与双杀烟碱(S,Se和Te)的偶联反应有效进行,并在温和的条件下在数分钟内完成,从而以中等至良好的收率提供了相应的硫代磷酸根。这种快速且无过渡金属的步骤提供了制备硫属磷酸盐的通用方法。
Novel Ester Compounds, Method for the Production Thereof and Use Thereof
申请人:Klüber Lubrication München SE & Co. KG
公开号:US20200140370A1
公开(公告)日:2020-05-07
The invention relates to novel ester compounds of the general formula (I)
to a process for preparation thereof and to the use thereof. These ester compounds may contain a mixture of at least two compounds of the general formula (I).
Validation of Arylphosphorothiolates as Convergent Substrates for Ar-SF4Cl and Ar-SF5 Synthesis
作者:Josep Cornella、Lin Wang、Shengyang Ni
DOI:10.1055/s-0040-1706039
日期:2021.11
the oxidative fluorination of aryl phosphorothiolates to access Ar-SF4Cl compounds. These compounds serve as precursors for the highly coveted Ar-SF5 compounds. The use of phosphorothiolates as starting materials permits access to Ar-SF4Cl from a wide variety of available starting materials, namely boronic acids, diazonium salts, aryliodides, thiophenols, or simplearenes. The protocol has been demonstrated