Journal ArticleDOI
Synthesis of Thiiranes from Epoxides in the Presence of Thiourea in a Weakly Hydrated Organic Medium
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TLDR
In this paper, the reaction of thiourea in the absence or in the presence of ethanol, towards several furanic, aromatic, aliphatic, and cyclic epoxides is studied.About:
This article is published in Synthetic Communications.The article was published on 1989-02-01. It has received 48 citations till now. The article focuses on the topics: Thiourea & Reactivity (chemistry).read more
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Rapid and efficient ring opening of epoxides catalyzed by a new electron deficient tin(iv) porphyrin
TL;DR: The new electron deficient tin(IV) tetraphenylporphyrinato trifluoromethanesulfonate, [SnIV(tpp)(OTf)2], was used as an efficient catalyst for the alcoholysis, hydrolysis and acetolysis of epoxides.
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Synthesis of Novel (P,S) Ligands Based on Chiral Nonracemic Episulfides. Use in Asymmetric Hydrogenation
TL;DR: In this paper, a strategy for the synthesis of new chiral (P,S) ligands is described based on the opening of chiral nonracemic episulfides using phosphorus nucleophiles.
Journal ArticleDOI
Stereospecific formation of S(−) styrene sulfide: Efficient conversion of epoxides to thiiranes catalysed with Ru(III)
Nasser Iranpoor,Foad Kazemi +1 more
TL;DR: In this article, the efficient conversion of different epoxides to their corresponding thiiranes in the presence of ammonium thiocyanate in exellent yields was achieved in high optical purity.
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Aluminum tris (dodecyl sulfate) trihydrate Al(DS)3·3H2O as an efficient Lewis acid–surfactant-combined catalyst for organic reactions in water: Efficient conversion of epoxides to thiiranes and to amino alcohols at room temperature
TL;DR: In this paper, the reaction of epoxides with thiourea and amines in the presence of catalytic amounts of aluminum tris (dodecyl sulfate) trihydrate Al(DS)3·3H2O as a Lewis acid-surfactant-combined catalyst at room temperature in water was described.
Journal ArticleDOI
Conversion of Epoxides to Thiiranes Catalyzed with TiO(TFA)2 and TiCl3(Otf) in the Presence of Ammonium Thiocyanate or Thiourea
N. Iranpoor,Behzad Zeynizadeh +1 more
TL;DR: TiO(CF3CO2)2 and TiCl3(CF 3SO3) are efficient catalysts for the conversion of epoxides to thiiranes in the presence of ammoniun thiocyanate or thiourea under non-aqueous conditions.
References
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Journal ArticleDOI
Reactions of sulfur atoms. XI. Intermediacy of a hybrid .pi.-thiacyclopropane in the addition reactions to olefins and in the thermal decomposition of episulfides
Journal ArticleDOI
Synthesis of α,β Unsaturated Esters Using a Solid-Liquid Phase Transfer in a Slightly Hydrated Aprotic Medium
TL;DR: The condensation reaction of alkylphosphonates with various functionnalysed aldehydes in the presence of solid potassium carbonate in low hydrated aprotic media leads to the selective formation of αβ-unsaturated esters E in high yields.
Journal ArticleDOI
Reaction in Low Hydrated Solid-Liquid Heterogeneous Medium: Thiiranes Synthesis from Epoxides
TL;DR: In this article, a new method for the selective thiiranes synthesis from epoxides has been elaborated, where a low hydrated solid-liquid heterogeneous medium is involved which contains solid thiocyanate with or without solvent.
Journal ArticleDOI
Biomass as a source of monomers: I — Synthesis of 2-vinylfuran
TL;DR: In this article, the condensation reaction between furfural and methyltriphenyl-phosphonium bromide was carried out using a solid-liquid transfer process in the presence of an excess of potassium carbonate.
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Stereospecific formation of S(−) styrene sulfide: Efficient conversion of epoxides to thiiranes catalysed with Ru(III)
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