Betylates. 3. Preparative nucleophilic substitution by way of [2]-, [3]-, and [4]betylates. Stoichiometric phase transfer and substrate-reagent ion-pair (SRIP) reactions of betylates
The reaction of cyclic sulfides with benzyne generated from 2-carboxybenzenediazonium chloride affords ω-chloroalkyl phenyl sulfides in good yields. A similar type of reaction was also observed with acyclic sulfides.
Alkyl- and Arylthiodediazoniations of Dry Arenediazonium <i>o</i>-Benzenedisulfonimides. Efficient and Safe Modifications of the Stadler and Ziegler Reactions to Prepare Alkyl Aryl and Diaryl Sulfides
yields were obtained only when sterically hindered diazoniumsalts or thiols were used. A good amount of the o-benzenedisulfonimide (8) was always recovered from the reactions and could be reused to prepare salts 1. The copious experimental data collected in homogeneous conditions have offered several starting points for the study of the mechanism of these reactions.
Reductive Cleavage of the S–Si Bond in Arylsulfanyltrimethylsilanes: a Novel Method for the Synthesis of Unsymmetrical Sulfides†
作者:Songlin Zhang、Yongmin M. Zhang
DOI:10.1039/a705190e
日期:——
Arylsulfanyltrimethylsilanes are reduced by samarium diiodide to yield samarium arylthiolates which react with alkyl halides to give unsymmetrical sulfides.
芳硫基三甲基硅烷经二碘化钐还原后生成芳硫酸钐,再与烷基卤化物反应生成不对称硫化物。
Purple‐Light Promoted Thiol‐ene Reaction of Alkenes
protocol for the purple light-mediated anti-Markovnikov functionalization of alkenes with thiols. Crucial to the generation of the thiyl radical was the formation of a key photo-active complex. More than 30 thioether products were obtained, demonstrating tolerance towards different functional groups and scalability up to 5 mmol of alkene. Two different reaction conditions have been developed, varying