A novel and efficient synthesis of sulfones was developed via a silver-promoted decarboxylative sulfonylation reaction between aromatic carboxylic acids and sodiumsulfinates for the first time. The approach features operational simplicity and good functional group compatibility and uses readily available starting materials. Furthermore, mechanistic studies reveal that the decarboxylative sulfonylation
Convenient One-pot Procedure for Converting Aryl Sulfides to Nitroaryl Sulfones
作者:Masatoshi Nose、Hitomi Suzuki
DOI:10.1055/s-2002-31950
日期:——
When treated with nitrogen dioxide and ozone in inert solvent at 0 °C or below, arylsulfides underwent smooth oxidative nitration to give nitroaryl sulfones in good yield. Using this methodology. a series of mono- and di-nitrated arylsulfones were prepared from methyl phenyl sulfide and diphenyl sulfide and their physical data are presented.
当在惰性溶剂中在 0 °C 或更低温度下用二氧化氮和臭氧处理时,芳基硫化物经历了平稳的氧化硝化反应,以良好的收率得到硝基芳基砜。使用这种方法。由甲基苯硫醚和二苯硫醚制备了一系列单硝基和二硝基芳基砜,并提供了它们的物理数据。
Aromatic polymers containing ketone groups
申请人:AMOCO CORPORATION
公开号:EP0030033A2
公开(公告)日:1981-06-10
Described herein are thermoplastic linear polymers containing recurring units of the formulae:
and
wherein R is independently hydrogen, C1 to C6 alkyl, or C4 to C8 cycloalkyl, a is an integer of 0 to 4, Z is independently
-SO-, -S-, -S02-, -0-, alkylene, cycloalkylene, arylene, alkylidene, or cycloalkylidene containing from 2 to 20 carbon atoms. with the proviso that Z cannot be
when the connecting ether bonds are in the para position to Z; n is independently an integer of from 1 to 5. The units are attached to each other by an -0- bond. Also, described herein is a process for preparing such polymers.