Sulfonic acid amides mercaptans

N-Sulfonyl-S-(sulfonylimino)sulfonic acid amides from mercaptans and N,N-dichlorosulfonamides... 

Nonaqueous solvents — Nonaqueous solvents are liquids, relevant for the preparation of solutions other than water. They can be classified in several ways protic (e.g., alcohols, acids, amines, mercaptans, i.e., having labile protons) vs. aprotic polar vs. nonpolar (e.g., paraffins, olefins, aromatic derivatives, or benzene) organic (e.g. esters, ethers, alkylcarbonates, nitriles, amides, sulfones) vs. inorganic (chalcogenides such as SOCI2, SO2CI2). Nonaqueous solvents may be superior to water in the following aspects ... 

Thiocyanates can often be utilized as intermediates in the Reparation of other sulfur-containing compounds, alkylthiocarbonic acid amides, disulfides, mercaptans, sulfides, and sulfonic acids. Typical reactions are as follows ... 

Sulfur Chemistry - Two facile methods of the heretofore difficult sulfoxide to sulfide reduction have been accomplished with dilsobutyl aluminum hydride and dichloroborane in THF at 0 . With the latter reagent, ketones, esters, and amides remain unaffected. A review on sulfoximes and derivatives as synthetic reagents presents some new methods for the preparation of various oxiranes, aziridines, alcohols, cyclopropanes, and alkenesAllylic sulfoxide anions have proven useful for the synthesis of ally lie alcohols, including trisubstltuted olefinic allylic alcohols. Transesterification between a dialkylacylphosphonate and a sulfonic acid yields sulfonate esters. The oxidation of aliphatic mercaptans to sul-finio acids with the use of m-chloroperbenzoic acid is especially useful in that the excess perbenzolc acid is removed by precipitation at -80. ... 

Sodium mercaptides are prepared from the mercaptans and aqueous or alcoholic solutions of sodium hydroxide or alcoholic sodium eth-oxide. The sodium mercaptide reacts with halides, chlorohydrins, esters of sulfonic acid, or alkyl sulfonates [6] to give sulfides in yields of 70% or more. A recent report describes a general procedure for synthesizing aryl thioesters by a nucleophilic displacement of aryl halide with thiolate ion in amide solvents. No copper catalysis is necessary as in an Ullmann-type reaction. 

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