- A sulfonating ionic liquid for one-pot pseudo four-component synthesis of novel 3-chlorosulfonyl-δ-sultones: A novel class of fluorescent compounds
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An active imidazolium-based ionic liquid mixture was developed for efficient synthesis of some novel 4,6-diaryl-3-(chlorosulfonyl)-1,2-oxathiine-2,2-dioxides (chlorosulfonyl-δ-sultones) from simple acetophenones at room temperature. The ionic liquid mixtu
- Toorchi Roudsari, Saeedeh,Rad-Moghadam, Kurosh
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supporting information
p. 4047 - 4052
(2018/06/18)
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- N-methyl-2-pyrrolidonium chlorosulfonate: An efficient ionic-liquid catalyst and mild sulfonating agent for one-pot synthesis of δ-sultones
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Addition of chlorosulfonic acid to N-methyl-2-pyrrolidone (NMP) resulted in the formation of a low-melting solid with the advantages of being reasonably stable for at least 4 months at ambient temperature and easy to handle. This solid forms homogeneous s
- Rad-Moghadam, Kurosh,Hassani, Seyyed Ali Reza Mousazadeh,Roudsari, Saeedeh Toorchi
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p. 275 - 280
(2016/03/15)
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- A Novel and Efficient Synthesis of δ-Sultones
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A class of sulfonic ionic liquids, with the supremacy of methylsulfonylimidazolium triflate hydrochloride, was found to be efficient for catalyzing the self-condensation of acetophenone derivatives and sulfonating the resulting condensates in a one-pot rapid reaction leading to the synthesis of 4,6-diaryl-1,2-oxathiine-2,2-dioxides (diaryl-δ-sultones). Georg Thieme Verlag Stuttgart, New York. Georg Thieme Verlag Stuttgart, New York.
- Rad-Moghadam, Kurosh,Roudsari, Saeedeh Toorchi,Sheykhan, Mehdi
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supporting information
p. 827 - 830
(2014/04/03)
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- Reaction of Phenylacetylene with Sulfuric Acid or Sulfuric Anhydride. Synthesis of 4,6-Diphenyl-1,2-oxathiin 2,2-Dioxide
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The influence of the reactant ratio and amount of dehydrating agent on the yield of 4,6-diphenyl-1,2-oxathiin 2,2-dioxide in the reaction of phenylacetylene with sulfuric acid was studied. The product can decompose in aqueous acidic medium to give acetophenone. The highest yield of 4,6-diphenyl-1,2-oxathiin 2,2-dioxide was obtained in the reaction of phenylacetylene with the SO3-dioxane complex or a solution of SO3 in chloroform-dioxane. Diphenylacetylene with SO3 does not form the corresponding β-sultone but undergoes oxidation to benzyl. Diphenylbutadiyne does not react with the SO3-dioxane complex.
- Rogachev, V. O.,Yusubov, M. S.,Filimonov, V. D.
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p. 415 - 418
(2007/10/03)
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