Phenyltrimethylammonium Tribromide for Selective Oxidation of Sulfides to Sulfoxides. A Convenient Synthesis of Sulfinyl-18O-Labelled Sulfoxide Carboxylic Acids
Phenyltrimethylammonium Tribromide for Selective Oxidation of Sulfides to Sulfoxides. A Convenient Synthesis of Sulfinyl-18O-Labelled Sulfoxide Carboxylic Acids
Diaryl(acyloxy)sulfonylaminospiro-λ<sup>4</sup>-sulfanes. Synthesis, molecular structure and rearrangement
作者:József Rábai、István Kapovits、Gyula Argay、Tibor Koritsánszky、Alajos Kálmán
DOI:10.1039/c39950001069
日期:——
and the rearrangement of the first diaryl(acyloxy)sulfonylaminospiro-λ4-sulfane 1 are reported with the molecular structures of 1 and those of the product 2 determined by X-ray diffraction; this work demonstrates that the formation of the rearrangement products (2 or 4) depends on the N-substituent of the starting spiro-λ4-sulfane precursor, the sulfoxide 3 or cyclic imide 5.
Phenyltrimethylammonium Tribromide for Selective Oxidation of Sulfides to Sulfoxides. A Convenient Synthesis of Sulfinyl-<sup>18</sup>O-Labelled Sulfoxide Carboxylic Acids
作者:József Rábai、István Kapovits、Béla Tanács、József Tamás
DOI:10.1055/s-1990-27033
日期:——
Various sulfides can be oxidized selectively to the corresponding sulfoxides in high yields using phenyltrimethylammonium tribromide in aqueous pyridine solution. This method allows 18O- labelled sulfoxides to be prepared with no loss of isotope enrichment of the (18O)water used.