A radical coupling reaction of DMSO with sodium arylsulfinates in air : mild utilization of DMSO as C<sub>1</sub> resource for the synthesis of arylsulfonyl dibromomethane
作者:Jie Shi、Xiao-Dong Tang、Yan-Cheng Wu、Jie-Fang Fang、Liang Cao、Xiao-Yun Chen、Zhao-Yang Wang
DOI:10.1039/c6ra01393g
日期:——
A radical coupling reaction of DMSO with sodium arylsulfinates under air atmosphere to afford arylsulfonyl dibromomethane is described. This transformation provides a novel approach for the utilization of DMSO as a C1 resource with mild temperature without the need for an anaerobic atmosphere.
Die Erfindung betrifft Verbindungen aus den Gruppen der (A) Elektrophilen, (B) Nukleophilen, (C) Alkylierungsmitteln, (D) Antioxidantien und (E) Oxidationsmitteln als Geruchsverhinderer zur Verminderung von so genanntem Ghost Odor der durch 2-Methyl-4-isothiazolin-3-on und/oder Octyl-4-isothiazolin-3-on hervorgerufen wird. Die Erfindung betrifft ferner Biozidzusammensetzungen die 2-Methyl-4-isothiazolin-3-on und/oder Octyl-4-isothiazolin-3-on, sowie einen oder mehrere Geruchsverhinderer enthalten, und die Verwendung von Geruchsverhinderern zur Verhinderung von Ghost Odor.
Chemoselective mono halogenation of β-keto-sulfones using potassium halide and hydrogen peroxide; synthesis of halomethyl sulfones and dihalomethyl sulfones
The synthesis of alpha-halo beta-keto-sulfones using potassium halide and hydrogen peroxide as a chemoselective mono halogenation reagent and the synthesis of alpha, alpha-symmetrical and asymmetrical dihalo beta-keto-sulfones and alpha-halo, alpha-alkyl and beta-keto-sulfones is described. Base induced cleavage of alpha-halo beta-keto-sulfones, alpha,alpha-dihalo beta-keto-sulfones, and alpha-halo, alpha-alkyl beta-keto-sulfones afforded the corresponding halomethyl sulfones, dihalomethyl sulfones and haloalkyl sulfones. (c) 2006 Elsevier Ltd. All rights reserved.